`571-272-7822
`
`
`
`Paper 101
`Entered: December 15, 2015
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`
`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`____________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`____________
`
`PETROLEUM GEO-SERVICES INC.,
`and
`ION GEOPHYSICAL CORPORATION
`AND ION INTERNATIONAL S.A.R.L.,
`Petitioner,
`
`v.
`
`WESTERNGECO LLC,
`Patent Owner.
`____________
`
`Case IPR2014-006891
`Patent 7, 293,520 B2
`____________
`
`
`Before BRYAN F. MOORE, SCOTT A. DANIELS, and
`BEVERLY M. BUNTING, Administrative Patent Judges.
`
`DANIELS, Administrative Patent Judge.
`
`
`
`FINAL WRITTEN DECISION
`35 U.S.C. § 318(a) and 37 C.F.R. § 42.73
`
`
`1 Case IPR2015-00565 has been joined with this proceeding.
`
`
`
`IPR2014-00689
`Patent 7,293,520 B2
`
`A. Background
`
`I. INTRODUCTION
`
`Petroleum Geo-Services (“Petitioner,” or “PGS”) filed a Petition to
`
`institute an inter partes review of claims 1, 2, 18 and 19 of U.S. Patent No.
`
`7,293,520 B2 (“the ’520 patent”).2 Paper 2 (“PGS Pet.”). WesternGeco
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`LLC (“Patent Owner”) timely filed a Preliminary Response. Paper 26
`
`(“First Prelim. Resp.”). We instituted trial in Petroleum Geo-Services, Inc.,
`
`v. WesternGeco L.L.C., Case IPR2014-00689, (the “PGS IPR”), for claims
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`1, 2, 18 and 19 of the ’520 patent on certain grounds of unpatentability
`
`alleged in the Petition. Paper 32 (“Decision to Institute” or “Inst. Dec.”).
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`Patent Owner, in due course, filed a Response. Paper 43 (“Response”).
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`Petitioner subsequently filed a Reply. Paper 78 (Reply).
`
`In a separate proceeding, ION Geophysical Corporation and ION
`
`International S.A.R.L., v. WesternGeco L.L.C., Case IPR2015-00565 (PTAB
`
`Jan. 14, 2015) (the “ION IPR”), ION Geophysical Corporation and ION
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`International S.A.R.L. (“ION”) also filed a Petition to institute an inter
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`partes review of claims 1, 2, 18, and 19 of the ’520 patent. Paper 3 (“ION
`
`Pet.”). With their Petition, ION also filed a Motion for Joinder, Paper 4
`
`(“Mot.”), seeking to join the ION IPR with the PGS IPR. Mot. 2. Patent
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`Owner filed an Opposition to ION’s Motion for Joinder. Paper 10 (“Opp.,”).
`
`We instituted trial in the ION IPR and granted ION’s Motion for Joinder.
`
`
`2 The Petition was initially accorded the filing date of April 23, 2014. Paper
`6. Following submission of an updated Mandatory Notice (Paper 18) on
`August 5, 2014, including additional real-parties-in-interest, the filing date
`of the Petition was changed to August 5, 2014 and we exercised our
`discretion under 37 C.F.R. § 42.5(c) to set a new deadline for Patent
`Owner’s preliminary response. Paper 22, 6.
`
`2
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`IPR2014-00689
`Patent 7, 293,520 B2
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`Paper 14 (“ION Decision to Institute” or “ION Inst. Dec.”). We ordered
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`ION not to file papers, engage in discovery, or participate in any deposition
`
`or oral hearing in IPR2014-00689 without obtaining authorization. ION
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`was, however, permitted to appear in IPR2014-00689 so that it could receive
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`notification of filings and attend depositions and the oral hearing. Patent
`
`Owner subsequently filed a Preliminary Response to ION’s Petition. Paper
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`70 (“ION Prelim. Resp.”).
`
`In addition, Petitioner filed a Motion to Exclude. Paper 85. Patent
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`Owner filed an Opposition to Petitioner’s Motion to Exclude (Paper 90),
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`and Petitioner filed a Reply. Paper 94. Also, Petitioner filed three Motions
`
`to Seal (Papers 81, 87, and 97), and Patent Owner filed a Motion to Seal.
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`Paper 91.
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`An oral hearing was held on July 30, 2015. A transcript of the hearing
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`is included in the record. Paper 100 (“Tr.”).
`
`The Board has jurisdiction under 35 U.S.C. § 6(c). This Final Written
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`Decision is entered pursuant to 35 U.S.C. § 318(a) and 37 C.F.R. § 42.73.
`
`For the reasons that follow, we determine that Petitioner has proven, by a
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`preponderance of the evidence, that claims 1, 2, 18 and 19 of the ’520 patent
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`are unpatentable.
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`B. Additional Proceedings
`
`Lawsuits involving the ’520 patent presently asserted against
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`Petitioner include WesternGeco LLC v. Petroleum Geo-Services, Inc., 4:13-
`
`cv-02725 (the “PGS lawsuit”) in the Southern District of Texas and
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`WesternGeco LLC v. ION Geophysical Corp., 4:09-cv-01827 (the “ION
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`lawsuit”) also in the Southern District of Texas. ION Pet. 8.
`
`The ’520 patent is related to the patents involved in IPR2014-00687
`
`and IPR2014-00688.
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`3
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`IPR2014-00689
`Patent 7, 293,520 B2
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`C. The ’520 Patent
`
`The ’520 patent (Ex. 1001), titled “Control System for Positioning of
`
`a Marine Seismic Streamers,” generally relates to a method and apparatus
`
`for improving marine seismic survey techniques to more effectively control
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`the movement and positioning of marine seismic streamers towed in an array
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`behind a boat. Ex. 1001, 1:24–36. As illustrated in Figure 1 of the ’520
`
`patent reproduced below, labeled Prior Art, a seismic source, for example,
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`air gun 14, is towed by boat 10 producing acoustic signals, which are
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`reflected off the earth below. Id. The reflected signals are received by
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`hydrophones (no reference number) attached to streamers 12, and the signals
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`“digitized and processed to build up a representation of the subsurface
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`geology.” Id. at 36–41.
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`4
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`IPR2014-00689
`Patent 7, 293,520 B2
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`
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`Figure 1, above, depicts an array of seismic streamers 12 towed
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`behind boat 10.
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`In order to obtain accurate survey data, it is necessary to control the
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`positioning of the streamers, both vertically in the water column, as well as
`
`horizontally against ocean currents and forces which can cause the normally
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`linear streamers to bend and undulate and, in some cases, become entangled
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`with one another. Id. at 1:42–2:16. As illustrated in Figure 1, above, each
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`streamer is maintained in a generally linear arrangement behind the boat by
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`deflector 16 which horizontally positions the end of each streamer nearest
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`the boat. Id. at 3:36–45. Drag buoy 20 at the end of each streamer farthest
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`5
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`IPR2014-00689
`Patent 7, 293,520 B2
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`from the vessel creates tension along the streamer to maintain the linear
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`arrangement.
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`To control the position and linear shapes of the streamers, a plurality
`
`of streamer positioning devices, called “birds” 18 or “SPD’s” (streamer
`
`positioning devices), are attached along the length of each streamer. Id. at
`
`3:53–55. The birds are horizontally and vertically steerable and control the
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`shape and position of the streamer in both vertical (depth) and horizontal
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`directions. Id. at 3:55–61. The birds’s job is usually to maintain the
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`streamers in their linear and parallel arrangement, because when the
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`streamers are horizontally out of position, the efficiency of the seismic data
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`collection is compromised. Id. at 2:4–12. The most important task of the
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`birds, the specification explains, is to keep the streamers from tangling. Id.
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`at 4:4–5.
`
`To control the birds, and hence the array of streamers, the ’520 patent
`
`describes a distributed control system using global control system 22 located
`
`on the vessel, and a local control system at each bird to maintain the
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`streamers in their particular linear and parallel arrangement. Id.
`
`at 3:62–66. In an embodiment of the described control system, global
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`control system 22 monitors the actual positions of the birds on the streamers
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`and “and is programmed with the desired positions of or the desired
`
`minimum separations between the seismic streamers 12.” Id. at 4:21–25.
`
`Global control system 22 uses the desired and actual positions of the birds to
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`“regularly calculate updated desired vertical and horizontal forces the birds
`
`should impart on the seismic streamers 12 to move them from their actual
`
`positions to their desired positions.” Id. at 4:37–40. Global control system
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`22 then communicates this information to the birds’s local control system.
`
`Id. at 5:6–10.
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`6
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`IPR2014-00689
`Patent 7, 293,520 B2
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`The ’520 patent explains that the “inventive control system” has two
`
`primary modes, a feather angle mode, and a turn control mode. Id. at 10:27–
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`29. The feather angle mode is used to maintain the linear form of the
`
`streamer at an angle offset from the direction of towing, usually to account
`
`for ocean crosscurrents affecting the streamers. Id. at 10:29–37. The ’520
`
`patent explains that in the feather angle mode
`
`[t]he feather angle could be input either manually, through use
`of a current meter, or through use of an estimated value based
`on
`the average horizontal bird forces. Only when
`the
`crosscurrent velocity is very small will the feather angle be set
`to zero and the desired streamer positions be in precise
`alignment with the towing direction.
`
`Id. at 10:32–36.
`
`The turn control mode is used when the vessel is turning during a
`
`survey operation. Id. at 10:38–40. In a first part of the turn, birds 18 are
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`instructed to “throw out” the streamer by generating a force in the opposite
`
`direction from the turn. Id. at 10:40–44. In a second part of the turn, the
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`birds are directed back to the position defined by the feather angle mode. Id.
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`The control system determines the first and second part of the turn according
`
`to data provided by the vessel navigation system. Id. at 10:50–53.
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`The control system can also operate in a streamer separation mode,
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`important for example during inclement weather conditions to keep the
`
`streamers from tangling. Id. at 10:54–57. In this mode, the birds receive
`
`either desired horizontal force, or horizontal position information to
`
`maintain the streamers a desired horizontal distance spaced apart from one
`
`another, and, the streamers can also be separated in depth. The specification
`
`explains that “[i]n this control mode, the global control system 22 attempts
`
`to maximize the distance between adjacent streamers. The streamers 12 will
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`7
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`IPR2014-00689
`Patent 7, 293,520 B2
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`typically be separated in depth and the outermost streamers will be
`
`positioned as far away from each other as possible.” Id. at 10:57–65.
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`According to the ’520 patent, these different modes allow the vessel to
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`operate more efficiently, turn faster and lower the incidents of tangling
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`during survey operations leading to a reduction in time and equipment costs
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`of marine surveying. Id. at 10:44–46, 2:23–25.
`
`D. Illustrative Claim
`
`Claims 1 and 18 are independent. Claim 1, a method claim and claim
`
`18 an apparatus claim, illustrate the claimed subject matter:
`
`
`
`1. A method comprising:
`(a) towing an array of streamers each having a plurality of
`streamer positioning devices there along contributing
`to steering the streamers;
`(b) controlling the streamer positioning devices with a
`control system configured to operate in one or more
`control modes selected from a feather angle mode, a
`turn control mode, and a streamer separation mode.
`
`
`Ex. 1001, 11:10–18 (emphasis added).
`
`
`18. An apparatus comprising:
`(a) an array of streamers each having a plurality of
`streamer positioning devices there along;
`(b) a control system configured to use a control mode
`selected from a feather angle mode, a turn control
`mode, a streamer separation mode, and two or more of
`these modes.
`
`
`Id. at 12:4–10. (emphasis added).
`
`
`8
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`IPR2014-00689
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`E. The Instituted Grounds of Unpatentability
`
`Petitioner contends that the challenged claims are unpatentable on the
`
`following specific grounds.3
`
`
`
`References
`
`Workman4
`
`Workman
`
`Hedberg5
`
`Hedberg
`
`
`
`Basis
`
`§ 102
`
`§ 103
`
`§ 102
`
`§ 103
`
`Claims Challenged
`
`1 and 18
`
`1, 2, 18 and 19
`
`1, 2, 18 and 19
`
`1, 2, 18 and 19
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`II. CLAIM CONSTRUCTION
`
`A. Legal Standard
`
`In an inter partes review, claim terms in an unexpired patent are
`
`interpreted according to their broadest reasonable construction in light of the
`
`specification of the patent in which they appear. 37 C.F.R. § 42.100(b); see
`
`also In re Cuozzo Speed Techs., LLC., 778 F.3d 1271, 1278–82 (Fed. Cir.
`
`2015) (“Congress implicitly approved the broadest reasonable interpretation
`
`standard in enacting the AIA,” and “the standard was properly adopted by
`
`PTO regulation.”). Claim terms are given their ordinary and customary
`
`meaning as would be understood by a person of ordinary skill in the art at
`
`the time of the invention and in the context of the entire patent disclosure.
`
`In re Translogic Tech., Inc., 504 F.3d 1249, 1257 (Fed. Cir. 2007). If the
`
`
`3 Petitioner supports its challenge with Declarations of Dr. Brian J. Evans,
`Ph.D. (Ex. 1002) (“Evans Decl.”) and Dr. Jack H. Cole, Ph.D. (Ex. 1003)
`(“Cole Decl.”). See infra.
`4 Ex. 1004, U.S. Patent No. 5,790,472 (Aug. 4, 1998).
`5 Ex. 1005, U.S. Patent No. 3,581,273 (May 25, 1971).
`
`9
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`IPR2014-00689
`Patent 7, 293,520 B2
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`specification “reveal[s] a special definition given to a claim term by the
`
`patentee that differs from the meaning it would otherwise possess[,] . . . the
`
`inventor’s lexicography governs.” Phillips v. AWH Corp., 415 F.3d 1303,
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`1316 (Fed. Cir. 2005) (en banc) (citing CCS Fitness, Inc. v. Brunswick
`
`Corp., 288 F.3d 1359, 1366 (Fed. Cir. 2002)).
`
`If an inventor acts as his or her own lexicographer, the definition must
`
`be set forth in the specification with reasonable clarity, deliberateness, and
`
`precision. Renishaw PLC v. Marposs Societa’ per Azioni, 158 F.3d 1243,
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`1249 (Fed. Cir. 1998). If a feature is not necessary to give meaning to what
`
`the inventor means by a claim term, it would be “extraneous” and should not
`
`be read into the claim. Renishaw PLC, 158 F.3d at 1249; E.I. du Pont de
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`Nemours & Co. v. Phillips Petroleum Co., 849 F.2d 1430, 1433 (Fed. Cir.
`
`1988). Only terms which are in controversy need to be construed, and then
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`only to the extent necessary to resolve the controversy. Vivid Techs., Inc. v.
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`Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999).
`
`We apply these general rules in construing the claims of the ’520
`
`patent.
`
`In our Decision to Institute we determined that an “array of streamers”
`
`as “more than one streamer.” Inst. Dec. 11. We also determined that
`
`“feather angle mode,” means “a control mode that attempts to keep each
`
`streamer in a straight line offset from the towing direction by a certain
`
`feather angle.” Id. at 12. We further determined that “turn control mode” is
`
`“a control mode, in which during a turn, the streamer positioning devices
`
`generate force in the opposite direction of the turn and then are directed back
`
`into position.” Id. at 13. We interpreted “streamer separation mode” as “a
`
`mode to control separation, or spacing, between streamers.” Id. at 15. In
`
`addition, we determined for apparatus claim 18, that the limitations recited
`
`10
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`IPR2014-00689
`Patent 7, 293,520 B2
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`in paragraph b) constituted a Markush group, and therefore “the prior art
`
`discloses the limitation if one alternative, i.e. a feather angle, a turn control
`
`mode, or a streamer mode, is in the prior art.” Id. (citing Fresenius USA,
`
`Inc. v. Baxter Int’l, Inc., 582 F.3d 1288, 1298 (Fed. Cir. 2009)).
`
`Based on the full record developed during trial, we adopt those
`
`constructions not discussed below for purposes of this Decision. Because
`
`Patent Owner disagrees with our interpretations of “feather angle mode” and
`
`“streamer separation mode” as recited in both claims 1 and 18, we provide
`
`below additional analysis and the correct claim construction for both these
`
`claim limitations. See PO Resp. 7–10. Additionally, Petitioner contends
`
`that the term “control mode” should be construed. Reply 4–5.
`
`B. Feather Angle Mode
`
`We determined in the Decision to Institute that “feather angle mode”
`
`means “a control mode that attempts to keep each streamer in a straight line
`
`offset from the towing direction by a certain feather angle.” Inst. Dec. 12.
`
`The parties, however, disagree over the meaning of the phrase “by a certain
`
`feather angle,” set forth in our construction. Petitioner insists that it means
`
`“no feather angle is input or set.” Reply 8–9. Patent Owner disagrees and
`
`asserts that the feather angle is “a specific selection/input (whether manually
`
`or through other means) of the angle into the global control system.” PO
`
`Resp. 7–8. This point requires clarification. There is only a very brief
`
`description of “feather angle mode” in the specification, which, in its
`
`entirety states:
`
`In the feather angle control mode, the global control system 22
`attempts to keep each streamer in a straight line offset from the
`towing direction by a certain feather angle. The feather angle
`could be input either manually, through use of a current meter,
`or through use of an estimated value based on the average
`
`11
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`IPR2014-00689
`Patent 7, 293,520 B2
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`horizontal bird forces. Only when the crosscurrent velocity is
`very small will the feather angle be set to zero and the desired
`streamer positions be in precise alignment with the towing
`direction.
`
`Ex. 1001, 10:29–37. Although this passage indicates that there may be
`
`various ways, e.g. estimation, manual input, current measurement, to input
`
`or determine the feather angle, it is clear that the “feather angle” itself exists
`
`as a value used by global control system 22 to control the streamers
`
`positions.
`
`Petitioner argues that the above description “discloses implementing
`
`feather angle mode through use of a current meter” that “steers the streamers
`
`to counteract the current and attempts to keep them straight and parallel
`
`without a feather angle being input.” Reply 8–9. Petitioner misconstrues
`
`the written description. The object of the second sentence isn’t “feather
`
`angle mode,” it is “feather angle.” The specification states explicitly “[t]he
`
`feather angle could be input either manually, through use of a current meter,
`
`or through use of an estimated value based on the average horizontal bird
`
`forces.” This sentence does not read as alternatives to the feather angle
`
`itself, but different ways to determine a feather angle value.
`
`Patent Owner’s explanation is the more reasonable one here.
`
`Accordingly, we clarify our claim construction so that it is understood that
`
`the feather angle mode includes global control system 22 using a certain
`
`feather angle value to control the birds and streamers. The “feather angle
`
`mode” is properly, “a control mode that attempts to keep each streamer in a
`
`straight line offset from the towing direction using a certain feather angle.”
`
`C. Streamer Separation Mode
`
`Patent Owner contends that our construction of “streamer separation
`
`mode,” as “a mode to control separation, or spacing, between streamers,” is
`
`12
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`incomplete. PO Resp. 9, 13. Patent Owner argues that this interpretation
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`“fails to define what it means to “control separation.” Id. Patent Owner’s
`
`position is that streamer separation mode is “precisely controlling, and
`
`therefore, maintaining” streamer separation. Id. at 20. However, the word
`
`“precisely” is superfluous without some stated relative quantity for
`
`comparison. That a behavior-predictive model as disclosed in the
`
`specification might make the control more accurate or “precise” does not
`
`persuade us that our original interpretation of this term is incorrect. See id.
`
`As we wrote in our original construction, we are not apprised of any
`
`evidence in the specification or claims that any specific distance between the
`
`streamers in the separation mode is “set and maintain[ed]” as Patent Owner
`
`urges. Inst. Dec. 14. The phrase “set and maintain” may be an explanation
`
`of how a system could “control separation” but this phrase is not found
`
`anywhere in the specification or claims. Indeed, the ’520 patent sets forth
`
`various ways that separation or spacing can be controlled between streamers,
`
`[i]n the preferred embodiment of the present invention, the global control
`
`system 22 monitors the actual positions of each of the birds 18 and is
`
`programmed with the desired positions of or the desired minimum
`
`separations between the seismic streamers 12.” Ex. 1001 at 4:21–25
`
`(emphasis added). Patent Owner has not provided persuasive evidence
`
`adequate to explain why the proper claim construction requires that the
`
`phrase “to control separation” be further defined more precisely as, “to set
`
`and maintain,” the spacing.
`
`We determine based on the specification, claim language, and
`
`evidence from the complete record before us, that our initial claim
`
`construction is correct, and that under the broadest reasonable interpretation,
`
`13
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`“streamer separation mode,” means “a mode to control separation, or
`
`spacing, between streamers.”
`
`D. Control Mode
`
`Petitioner contends that Patent Owner has asserted, covertly, a claim
`
`construction for the term “control mode.” Reply 4–5. Patent Owner argues
`
`that Workman does not disclose any modes and that “as used in the ’520
`
`patent, a ‘control mode’ refers to a goal-oriented automated configuration.”
`
`PO Resp. 19–20 (citing Ex. 2042 ¶¶190–191). Petitioner argues that such an
`
`interpretation, to the extent it is a claim construction proffered by Patent
`
`Owner, is too narrow and that “a control mode is simply a particular way of
`
`operating a device.” Reply 4.
`
`The specification of the ’520 patent does not provide a definition of
`
`this term. The specification states generally “[t]he inventive control system
`
`will primarily operate in two different control modes: a feather angle control
`
`mode and a turn control mode.” Ex. 1001, 10:27–29. Patent Owner’s
`
`Declarant, Dr. Triantafyllou testifies that Workman does not disclose “model
`
`based control” because “there is no goal-oriented steering disclosed at all.”
`
`Ex. 2042 ¶ 190. Dr. Triantafyllou states that
`
`[i]n contrast, the ’520 patent describes goal-oriented automated
`configurations maintained by “control modes”: feather angle
`mode automatically steers to achieve a particular feather angle,
`turn control mode automatically steers to turn faster, and
`streamer separation mode automatically steers to achieve and
`maintain desired separations.
`
`Id. at ¶ 191 (citing Ex. 1001, 10:27–65). Dr. Triantafyllou’s testimony is
`
`essentially that, for example in streamer separation mode, there is defined (a)
`
`a goal, “to achieve and maintain desired separations” and, (b) automation,
`
`e.g. “automatically steer[ing] to achieve and maintain desired separations.”
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`14
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`Id. This testimony, however, merely describes a desired result, i.e. “to
`
`maintain desired separations,” and how such a goal could be accomplished,
`
`by “automatically steering.” It is axiomatic that any operation of a computer
`
`system or program has a goal or desired result, otherwise its operation, even
`
`its existence, would be pointless. See MICROSOFT
`
`®
`
` PCDICTIONARY 118 (5th
`
`Ed. 2002) (“computer n. Any device capable of processing information to
`
`produce a desired result.”). Moreover, the word “automatically” introduces
`
`more ambiguity into the claim interpretation because it is not clear from the
`
`specification or Dr. Triantafyllou’s testimony what “automatically” means,
`
`or that manual input or operations associated with the systems steering
`
`operations are excluded. See Ex. 1001, 10:32–33 (“The feather angle could
`
`be input [] manually.”). We, therefore, decline to adopt Patent Owner’s
`
`purported construction of this term.
`
`A common computer term, Microsoft’s PC Dictionary defines the
`
`word as “mode n. The operational state of a computer or a program.”
`
`MICROSOFT
`
`®
`
` PCDICTIONARY 344 (5th Ed. 2002). Under this definition, a
`
`“mode” controls the state, i.e., operation, or even lack of operation, of a
`
`computer or computer program as is most consistent with the written
`
`description and context of the ’520 patent. Because at least Patent Owner’s
`
`first argument with respect to anticipation focuses on this term, we
`
`determine that “control mode” means “operational state.”
`
`III. ANALYSIS
`
`A. Claims 1 and 18 – Anticipation by Workman
`
`To prevail on its patentability challenge, Petitioner must establish
`
`facts supporting its challenge by a preponderance of the evidence. 35 U.S.C.
`
`§ 316(e); 37 C.F.R. § 42.1(d). Petitioner asserts that claims 1 and 18 are
`
`anticipated by Workman under 35 U.S.C. § 102. Pet. 28–32; Reply 11–14.
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`15
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`IPR2014-00689
`Patent 7, 293,520 B2
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`Patent Owner disagrees, contending that Workman fails to disclose actively
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`controlling its streamers in control modes as recited in the independent
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`claims. PO Resp. 19–20.
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` “A claim is anticipated only if each and every element as set forth in
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`the claim is found, either expressly or inherently described, in a single prior
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`art reference.” Verdegaal Bros. Inc. v. Union Oil Co., 814 F.2d 628, 631
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`(Fed. Cir. 1987). “The identical invention must be shown in as complete
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`detail as is contained in the . . . claim.” Richardson v. Suzuki Motor Co., 868
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`F.2d 1226, 1236 (Fed. Cir. 1989). The elements must be arranged as
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`required by the claim, but this is not an ipsissimis verbis test, i.e., identity of
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`terminology is not required. In re Bond, 910 F.2d 831, 832 (Fed. Cir. 1990).
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` “[U]nless a reference discloses within the four corners of the
`document not only all of the limitations claimed but also all of
`the limitations arranged or combined in the same way as recited
`in the claim, it cannot be said to prove prior invention of the
`thing claimed and, thus, cannot anticipate under 35 U.S.C. §
`102.”
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`Net MoneyIN, Inc. v. VeriSign, Inc., 545 F.3d 1359, 1371 (Fed. Cir. 2008).
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`Whether a patent is invalid as anticipated is a two-step inquiry. See
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`Power Mosfet Tech., LLC. v. Siemens AG, 378 F.3d 1396, 1406 (Fed. Cir.
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`2004). The first step requires construction of the claims. Id. The second
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`step in the analysis requires a comparison of the properly construed claim to
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`the prior art. Id.
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`1. Overview of Workman
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`Workman discloses a method for controlling the position and shape of
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`marine seismic streamer cables towed by a vessel. Ex. 1004, Abstract, Fig.
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`1. More specifically, Workman teaches that real time signals, i.e. actual
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`signals, from a towed streamer array are compared to corresponding input
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`16
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`Patent 7, 293,520 B2
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`threshold parameters, to determine if the cables should be repositioned. Id.
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`at col. 2, ll. 47–51. Workman discloses that the positions of seismic
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`streamer cables are controlled by a plurality of birds and tail buoys “for
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`adjusting the vertical and lateral positions of the streamer cables 13.” Id. at
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`col. 3, ll. 16–19. Figure 2 of Workman is reproduced below.
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`Figure 2 of Workman illustrates diagrammatically, seismic data
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`acquisition system 5 for positioning streamer cables 13 including streamer
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`controller 16 receiving instructions from streamer control processor 40. Id.
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`at col. 4, ll. 16–18. Within data acquisition system 5, Workman also
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`discloses network solution system 10 which uses a “Kalman filter solution
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`on the signals it receives from the vessel positioning system 20 and location
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`sensing devices 15.” Id. at col. 3, ll. 47–49. Workman states that once the
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`real time position signals are obtained, “[t]he streamer control processor 40
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`17
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`IPR2014-00689
`Patent 7, 293,520 B2
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`evaluates these real time signals and the threshold parameters from the
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`terminal 32 to determine when the streamer cables 13 need to be
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`repositioned and to calculate the position correction required to keep the
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`streamer cables 13 within the threshold parameters.” Id. at col. 4, ll. 12–17.
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`Threshold values can be, for example, minimum streamer cable separations,
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`minimum allowable seismic coverage, maximum hydrophone noise
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`levels,and minimum obstructive hazard separation. Id. at col. 3, l. 66–col. 4,
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`l. 3. Besides repositioning of the streamer cables according to the
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`comparison of real time signals and threshold parameters, Workman
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`discusses an “at risk” situation such as entanglement of the streamer cables,
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`or obstructive hazards. Id. at col. 4, ll. 45–51. In an “at risk” situation,
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`certain parameters may be disregarded, for example, the hydrophone noise
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`level parameter. Id. at col. 4, ll. 41–46. In other situations, the streamer
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`cables may be repositioned due specifically to the level of hydrophone noise.
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`Id. at col. 5, ll. 15–19.
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`18
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`IPR2014-00689
`Patent 7, 293,520 B2
`2. Claims 1 and 186
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`Patent Owner argues that Workman does not anticipate claims 1 and
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`18 for essentially three reasons, (a) Workman does not actively control its
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`streamers in control modes; (b) “Workman does not disclose any modes;”
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`and (c) Workman does not disclose a “streamer separation mode.” PO Resp.
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`19–20.
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`Enablement
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`Petitioner addresses an enablement issue that, at least in this
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`proceeding, is not clearly and specifically raised by Patent Owner.7 See
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`Reply 14–19, PO Resp. 32. Patent Owner states that “[t]here is no support
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`for Dr. Evans’s assertion unless one presupposes that Workman has a
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`working lateral steering system, which it does not . . . [b]ecause Workman
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`explicitly discourages active and continuous positioning of streamers.” PO
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`Resp. 32. (citing Ex. 2042 ¶¶ 98, 105, 199–200). To the extent it has been
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`raised here, we address enablement because it is a threshold issue with
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`respect to anticipation. A patent claim “cannot be anticipated by a prior art
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`reference if the allegedly anticipatory [disclosure] cited as prior art [is] not
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`enabled.” In re NTP, Inc., 654 F.3d 1279, 1301 (Fed. Cir. 2011). Although
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`anticipation is a question of fact, whether a prior art reference is enabling is
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`a question of law with underlying factual inquiries. Id.
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`The standard for what constitutes proper enablement of a prior art
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`6 Claims 1 and 18 recite substantively the same limitations of “control
`mode” and “streamer separation mode.” Although claim 1 is a method
`claim, and claim 18 is an apparatus claim we understand no substantive
`difference between these claim terms and our analysis and construction
`applies equally to both.
`7 The issue of enablement of the prior art is specifically raised by Patent
`Owner in IPR2014-00688.
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`19
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`reference for purposes of anticipation under section 102 differs from the
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`enablement standard for a patent application under section 112. See Verizon
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`Services Corp., v. Cox Fibernet Virginia, Inc., 602 F.3d 1325, 1337 (Fed.
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`Cir. 2010). Anticipation does not require the actual creation or reduction to
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`practice of the prior art subject matter; anticipation requires only an enabling
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`disclosure. See Schering Corp., v. Geneva Pharma, Inc., 339 F.3d 1373,
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`1380 (Fed. Cir. 2003); citing In re Donohue, 766 F.2d 531, 533 (Fed. Cir.
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`1985).
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`There is no dispute that streamer positioning devices which could be
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`laterally, or horizontally, steered were known in the prior art before the
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`priority date of the ’520 patent. The ’520 patent itself describes “[a]nother
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`system for controlling a horizontally steerable bird is disclosed in our
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`published PCT International Application No. WO 98/28636.” Ex. 1001,
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`2:38–40. Further, discussing Figure 1 labeled “Prior Art” the ’520 patent
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`explains that “located between the deflector 16 and the tail buoy 20 are a
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`plurality of streamer positioning devices known as birds 18. Preferably the
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`birds 18 are both vertically and horizontally steerable.” Id. at 3:53–56. See
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`Bristol-Myers Squibb Co. v. Ben Venue Labs., Inc., 246 F.3d 1368, 1379
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`(Fed. Cir. 2001). “It is well settled that “enablement of an anticipatory
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`reference may be demonstrated by a later reference.”)
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`Workman refers also in the Background of the Invention to known
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`SPD’s which control lateral position of streamers, “streamer positioning
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`devices are well known in the art . . . For example, devices to control the
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`lateral positioning of streamer cables by using camber-adjustable hydrofoils
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`or angled wings are disclosed in U.S. Pat. Nos. 4,033,278 and 5,443,027.”
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`Ex. 1004, 1:45–58. Moreover, it is presumed that Workman is enabled. See
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`Amgen Inc. v. Hoechst Marion Roussel, Inc., 314 F. 3d 1313, 1355 (Fed. Cir.
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`20
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`IPR2014-00689
`Patent 7, 29