throbber
Case No. IPR2019-00500
`Patent No. 9,737,154
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`
`
`
`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`
`____________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`____________
`
`AMERICAN NATIONAL MANUFACTURING INC.,
`Petitioner,
`
`v.
`
`SLEEP NUMBER CORPORATION
`f/k/a SELECT COMFORT CORPORATION,
`Patent Owner.
`
`____________
`
`Case No. IPR2019-00500
`
`Patent No. 9,737,154
`____________
`
`
`
`
`PETITIONER’S SURREPLY TO PATENT OWNER’S
`MOTION TO AMEND (PAPER 42)
`
`
`
`
`WA 14551779.2
`
`

`

`Case No. IPR2019-00500
`Patent No. 9,737,154
`
`TABLE OF CONTENTS
`INTRODUCTION ......................................................................................... 1
`
`I.
`
`II. ARGUMENT ................................................................................................. 2
`
`A. The Proposed Amendments Fail To Meet The Statutory And Regulatory
`Requirements ..................................................................................................... 2
`
`1. PO has not demonstrated support for the Proposed Amendments ........... 2
`
`2. The Substitute Claims are not enabled and/or lack written description
`because the specification contains an ERROR in a critical equation as now PO
`admits ............................................................................................................ 4
`
`3. The Substitute Claims are arguably broader in light of proposed
`dependent claims ............................................................................................ 6
`
`4. The Substitute Claims are indefinite ....................................................... 7
`
`5. PO’s compliance with the duty of candor remains deficient ................... 8
`
`B. The Proposed Claims Remain Improper and/or Obvious as this Board
`correctly determined .......................................................................................... 9
`
`1. Motivation to combine satisfies the flexible KSR standard ..................... 9
`
`2. Remaining Substitute Claims are also obvious ......................................11
`
`3. Petitioner does NOT admit the references are not analogous .................12
`
`III.
`
`CONCLUSION .........................................................................................12
`
`
`
`
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`Case No. IPR2019-00500
`Patent No. 9,737,154
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`TABLE OF AUTHORITIES
`
` Page(s)
`
`Federal Cases
`
`B.E. Tech., L.L.C. v. Google, Inc.,
`No. 2015-1827, 2016 WL 6803057 (Fed. Cir. Nov. 17, 2016)
`(unpublished) ................................................................................................. 3, 4
`
`Constant v. Advanced Micro-Devices, Inc.,
`848 F.2d 1560 (Fed. Cir. 1988) ........................................................................ 10
`
`Nautilus, Inc. v. Biosig Inst., Inc.,
`572 U.S. 898 (2014) ........................................................................................... 7
`
`Ormco Corp. v. Align Tech., Inc.,
`498 F.3d 1307 (Fed. Cir. 2007) .......................................................................... 5
`
`
`
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`Case No. IPR2019-00500
`Patent No. 9,737,154
`
`Petitioner American National Manufacturing, Inc. (“ANM” or “Petitioner”)
`
`files this Surreply in support of its Opposition (Paper 68) to Patent Owner Sleep
`
`Number Corp.’s (f/k/a Select Comfort Corp.) (“PO” or “Sleep Number”) Motion to
`
`Amend (Paper 42) (the “MTA”) and in response to PO’s Reply (Paper 81) (the
`
`“Reply”). The appendix to the MTA provides a redline of proposed “Substitute
`
`Claim(s)” (or the “Proposed Amendment(s)”).
`
`I.
`
`INTRODUCTION
`
`This Board correctly found all the Substitute Claims to be unpatentable over
`
`prior art. See Prel. Guidance (Paper 77 at 6–11). The Board’s guidance recognized
`
`that the Proposed Amendments add nothing more than non-distinguishing, generic
`
`limitations within the ambit of prior art and do nothing to add to patentability.
`
`The Reply does nothing to rebut the Board’s careful analysis, much less
`
`Petitioner’s analysis. Instead providing cogent analysis, the MTA’s rebuttal
`
`arguments are not tied to claim language (or even a specific construction),
`
`misrepresent Petitioner’s positions and expert testimony to complexify and make
`
`strawman arguments, or are otherwise specious.
`
`Moreover, PO for the first time admits that the specification contains an error
`
`in a critical equation. This renders the claims inoperative and un-enabled, among
`
`other things.
`
`Accordingly, the Board should deny the MTA.
`
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`Case No. IPR2019-00500
`Patent No. 9,737,154
`II. ARGUMENT1
`
`A. The Proposed Amendments Fail To Meet The Statutory And
`Regulatory Requirements
`
`1.
`
`PO has not demonstrated support for the Proposed
`Amendments
`
`PO’s rebuttal is a meager one sentence asserting that Dr. Messner now has
`
`provide detailed support. Reply at 1–2. However, Dr. Messner himself admitted
`
`that his declaration merely parrots back claim language under the heading “My
`
`analysis.” E.g., Ex. 1062 at 78:1–10. He also admitted that he merely provides a
`
`bare list of citations (without analysis) under the heading “Support in Ex. . . .”. E.g.,
`
`Ex. 1062 at 86:6–15. He also admitted that the vast majority of those citations are
`
`
`
`1 In § II.B of the Reply, PO argues that Petitioner improperly incorporates by
`
`references because the Opposition cites to more robust discussion provided in Dr.
`
`Phinney’s declaration. As an initial matter, PO’s argument seems disingenuous
`
`given that PO itself effectively by citation incorporates by reference 28 pages of
`
`declaration testimony. See Reply at 1–2 (“written description . . . is now further
`
`bolstered by Dr. Messner’s detailed mapping of the substitute claims to the original
`
`disclosure. (Exhibit 2079 ¶¶ 11-20.)”). In stark contrast to the PO (see § II.A.1 infra
`
`discuss PO’s practice of merely providing string citations), the Opposition provides
`
`plain-English discussion in a level of detail demanded by this Board’s imposed page
`
`limits. That discussion is supported by citation to evidence providing a more detail
`
`discussion. Petitioner’s plain-English briefing is proper unlike PO’s string-citation
`
`briefing.
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`Case No. IPR2019-00500
`Patent No. 9,737,154
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`to paragraphs that merely parrot back claim language, e.g., from the “Abstract” or
`
`“Summary,” or merely describe the Background. E.g., Ex. 1062 at 80:4–81:5 and
`
`84:10–86:5. Where Dr. Messner citations to figures or the detailed description for
`
`support, he intentionally omitted identification of specific reference numerals that
`
`would identify which claim elements correspond to which elements in the figures
`
`and detailed description. E.g., Ex. 1062 at 86:6–91:21.
`
`This makes it impossible for Petitioner (and this Board) discern PO’s theory
`
`of support for various Proposed Amendments. PO’s prejudicial practice has been
`
`held deficient, and the Federal Circuit has upheld such holding of deficiency. See
`
`B.E. Tech., L.L.C. v. Google, Inc., No. 2015-1827, 2016 WL 6803057, at *7 (Fed.
`
`Cir. Nov. 17, 2016) (unpublished) (agreeing with Board that a patent owner did not
`
`meet its burden to show written description support for proposed substitute
`
`limitations in motion to amend where the patent owner provided only a string
`
`citation without explaining how the cited material supported each of the proposed
`
`substitute limitations).
`
`Although the Preliminary Guidance accepted mere string citations at that
`
`stage, the Guidance did not address the cases cited by Petitioner rejecting the practice
`
`of providing only string citations. Oppo., § II.A.2. Petitioner respectfully submits
`
`that the reasoning of these opinions is sound and should be followed.
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`Case No. IPR2019-00500
`Patent No. 9,737,154
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`It is PO’s burden to show support, and it has not done so here. See B.E. Tech.,
`
`No. 2015-1827, 2016 WL 6803057 at *7 (burden is on patentee).
`
`2.
`
`The Substitute Claims are not enabled and/or lack written
`description because the specification contains an ERROR
`in a critical equation as now PO admits
`
`As discussed in § II.A.3 of the Opposition, the specification of the ’154 Patent
`
`at the crucial point of detailing the equation for calculating an AFE and modifying
`
`the PAF contains an ERROR. See also Ex. 2079, ¶ 20 (Patent Owner’s expert
`
`expressly acknowledges this error stating “this is a typographical error”).
`
`Implementing any embodiment disclosed in the detailed description would results in
`
`same PAF or accumulation of small amounts of error over time. See Ex. 1046, § X,
`
`¶¶ 434–36. This is a latent error that would not be evident to a person having
`
`ordinary skill in the art (“POSA”) and render embodiments inoperative, as Dr.
`
`Phinney explained on cross-examination by PO’s counsel:
`
`Q.
`
`Is it operable as written?
`
`A. Yes [and no]. And that’s kind of a problem, because
`what I’m trying to explain is it gives kind of a reasonable
`number that, as I explained, can differ a little bit from a
`number that was used previously, so it can give sort of the
`illusion of things being okay yet drift over time. So it’s
`like a hidden problem that — you know, an enablement
`you frequently are trying to pierce the veil of haze or fog
`around something to arrive at the actual implementation.
`This provides an implementation that’s incorrect.
`
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`Case No. IPR2019-00500
`Patent No. 9,737,154
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`Ex. 2080 at 162:4–18 (emphasis added). Further concealing this problem is that the
`
`maximum number attempts and time-out checks (see ’747 Patent, FIG. 7, elements
`
`151 and 173) would prevent indefinite operation, resulting on achieving actual
`
`pressure close to desired pressure. See Ex. 1062 114:11–115:7 (Dr. Messner
`
`agreeing with the same).
`
`Thus, this error results in undue (or indefinite amount of) experimentation and
`
`inoperability. See Ormco Corp. v. Align Tech., Inc., 498 F.3d 1307, 1319 and 1326
`
`(Fed. Cir. 2007) (failure to be able to implement “an embodiment of the patent
`
`invention [] is strong evidence that the patent specification lacks enablement”).
`
`Petitioner’s own expert agreed that the disclosure is inoperable. Ex. 1062 at 113:8–
`
`14.
`
`This is not a “minor typographical error” as PO asserts (Reply at 11–12). PO
`
`fails to explanation of how a POSA would even realize this error given its latent
`
`nature. Indeed, PO’s prosecution attorneys and inventors—all who reviewed the
`
`specification in detail multiple times when filing the priority PCT application, parent
`
`’747 Patent, this ’154 Patent, and a child continuation application—presumably
`
`never recognized this error and certainly never took corrective action. The proper
`
`procedure to correct a defect in a patent is reissue. See 35 U.S.C. § 251. PO cannot
`
`use the IPR process to circumvent the reissue process.
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`Case No. IPR2019-00500
`Patent No. 9,737,154
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`Thus, all the Proposed Claims are invalid.2
`
`3.
`
`The Substitute Claims are arguably broader in light of
`proposed dependent claims
`
`Petitioner’s in its Opposition (§ II.A.4) provided a detail discussion of how
`
`dependent Substitute Claims 24–26 may imply that independent claims are broader
`
`based on principles of claim differentiation. The legal test is “a claim is broader in
`
`scope than the original claims if it contains within its scope any conceivable product
`
`or process which would not have infringed the original patent.” MPEP § 1412.03.
`
`“A claim is broadened if it is broader in any one respect even though it may be
`
`narrower in other respects.” Id.
`
`Here, PO has not put forth any construction for what it means to modify the
`
`PAF “based on” the AFE as recited in independent claims. Petitioner asserts that
`
`that phrase is not broad enough to cover the AFE being a binary flag. Under the
`
`original independent claims, for instance, an AFE being a binary flag would not
`
`infringe, but such would conceivably infringe independent Substitute Claims when
`
`interpreted by a court in view of dependent Substitute Claim 25. PO’s Reply does
`
`
`
`2 Wands factor 3 (presence or absence of working examples) is particularly relevant
`
`as there are no true working examples here (only example that would appear to
`
`work). See id. at 1326. The remaining Wands factors are generally inapplicable as
`
`there is a latent error here that a POSA would not recognize required
`
`experimentation.
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`Case No. IPR2019-00500
`Patent No. 9,737,154
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`not analyze this issue. Although the Preliminary Guidance determined that scope
`
`was not enlarged, it does not appear to discuss broadening based on claim
`
`differentiation. Petitioner respectfully submits that Petitioner’s inherent position
`
`that the Proposed Claims are broad to encompass these proposed dependent claims
`
`are an impermissible attempt to broaden to the scope.3
`
`4.
`
`The Substitute Claims are indefinite
`
`Petitioner’s arguments of indefiniteness are not about over breadth as PO
`
`asserts. Instead, Petitioner’s arguments relate to interpretation of the independent
`
`claims with respect to the AFE and whether those claims provide sufficient notice
`
`to the public that they cover the new dependent Substitute Claims 24–26. The ’154
`
`Patent fails to provide clear notice of such.4 See, e.g., Nautilus, Inc. v. Biosig Inst.,
`
`Inc., 572 U.S. 898, 910 (2014) (“a patent must be precise enough to afford clear
`
`notice of what is claimed, thereby apprising the public of what is still open to them.”
`
`(quotations, alterations, and citations omitted; emphasis added)). PO fails to apply
`
`the correct legal standard.
`
`
`
`3 This further evidences lack of support and enablement for the full breadth of claim
`
`scope.
`
`4 Given PO’s practice of obfuscation with respect to written description support
`
`discussed supra, it is unclear how these dependent claims as a whole have written
`
`description support. At best, it appears is mixing a matching portions of the
`
`specification to find piecemeal support.
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`WA 14551779.2
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`Case No. IPR2019-00500
`Patent No. 9,737,154
`5.
`
`PO’s compliance with the duty of candor remains deficient
`
`As a preliminary matter, PO’s expert Dr. Messner testified under oath that he
`
`was aware of the defect in the specification related to the AFE equations since at
`
`least PO’s first filing in this proceeding around April 2019. Ex. 1062 at 109:20–
`
`111:13. Yet, PO has neither taken corrective action to date (e.g., filing for a
`
`certificate of correction or reissue), nor candidly informed this Board of this critical
`
`error. See Ex. 1062 at 109:11–111:13. This is inconsistent with the duty of candor.
`
`PO asserts that it is “unaware” of material prior art and submits 9 pages listing
`
`references. Reply at 12 and Ex. 2082. Nowhere in those 9 pages does PO disclose a
`
`single physical product—even though PO was the market leader in consumer air
`
`mattress systems at the relevant times and for long before. Certainly, its own prior
`
`art products (and related product manuals and marketing materials) are material to
`
`the Proposed Amendments. For instance, certain Proposed Amendments related to
`
`“plurality of air bladders” (e.g., [23.P] et seq.), and PO was certainly selling air
`
`mattress systems with two air bladders prior to 2007. See, e.g., Ex. 1004, FIG. 2
`
`(Sleep Number’s own patent, filed in 1997, depicting a two bladder air mattress).
`
`PO cannot in good faith assert adding “a plurality of bladders” and other
`
`conventional elements (e.g., “network”) makes a patentable difference. Tellingly,
`
`PO did not even consult its own expert regarding its duty of candor. See Ex. 1062
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`Case No. IPR2019-00500
`Patent No. 9,737,154
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`at 140:12–17 (PO expert testifying he did no analysis in support of the “Duty of
`
`Candor” section).
`
`B.
`
`The Proposed Claims Remain Improper and/or Obvious as
`this Board correctly determined
`
`As discussed in detail in the Opposition and the Preliminary Guidance, the
`
`Substitute Claims are unpatentable as obvious. PO’s Reply does nothing to change
`
`that careful analysis. Petitioner below addresses each of PO rebuttal arguments.
`
`Each of the below subsection corresponds to the same subsection of § II. C of the
`
`Reply.
`
`1. Motivation to combine satisfies the flexible KSR standard
`
`This Board has repeatedly found a motivation to combine here. See, e.g., Prel.
`
`Guidance at 7 and Inst. Dec. at 28–31. Particularly, all the references are from an
`
`analogous field—pneumatic systems. Among other things, basic-engineering
`
`motivations of making things faster, more efficient, and more accurate would
`
`provide a rationale for a POSA to combine to solve a known problem. See Ex. 1062,
`
`82:13–84:8 (Dr. Messner waffling but not refuting such basic-engineering
`
`motivations). Further, the invention here uses conventional hardware and known
`
`software concepts that are within the grasp of a POSA that can be predictably
`
`combine. See Ex. 1062 at 102:5–105:8 (Dr. Messner waffling but could not identify
`
`a single change to conventional hardware needed to implement the invention of the
`
`’154 Patent, ergo all change merely required writing software); see also Ex. 1062 at
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`Case No. IPR2019-00500
`Patent No. 9,737,154
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`42:7–13 (Dr. Messner testified that drawing simple electrical-equivalent diagrams
`
`(e.g., as shown in the ’154 Patent, FIG. 3) were in the ambit of an engineering student
`
`circa 1990’s); The flexible KSR standard is easily satisfied here.
`
`PO arguments are specious. First, PO’s lead argument is that Ebel is less
`
`accurate. However, nothing in the Substitute Claims limits the claims to any
`
`particular degree of accuracy, nor has PO proposed any construction that would
`
`require a degree of accuracy. Thus, this argument is not legal relevant here. See,
`
`e.g., Constant v. Advanced Micro-Devices, Inc., 848 F.2d 1560, 1571-72 (Fed. Cir.
`
`1988) (rejecting arguments based on reading into claims limitations that are not
`
`present in the claims).
`
`Second, PO argues that Ebel does not teach a multiplicative offset in
`
`accordance with the claimed language. Ebel indisputably teaches a multiplicative
`
`PAF—“a2.” Ex. 1007, ¶ [0031]. Although Ebel teaches modifying sensed pressure
`
`based on a2 and deflating until that quantity equals desired pressure, it is the simple
`
`algebraic equivalent to use a2 to modify desired pressure and compare that quantity
`
`to dynamic pressure, as shown:
`
`Ebel
`[sensed press.] * a2 ≈ [desired press.]
`
`
`<=>
`
`Algebraic Equiv.
`[sensed press.] ≈ [desired press.] / a2
`
` Trivial algebra does not create patentable subject matter.
`
`PO also argues that Dr. Phinney’s derivative diagram (Rv/R+Rv) is not taught
`
`by prior art. Dr. Phinney has never asserted that that diagram was expressly taught
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`Case No. IPR2019-00500
`Patent No. 9,737,154
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`by the prior art, but has consistently asserted that it was derived from FIG. 2 of Ebel
`
`to show how a POSA would simplify the teachings of Ebel if certain unnecessary
`
`components were omitted (e.g., the low pass filter). PO also makes various
`
`arguments related to Pillsbury, but PO’s argument distort Portioner’s theory. PO’s
`
`arguments are specious as they needlessly complexify, misinterpret Petitioner’s
`
`position, and are strawman in nature.
`
`Third, PO argues improper hindsight because a single piece of art does not
`
`expressly suggest modifying a multiplicative PAF. PO effectively concedes that
`
`Pillsbury expressly teaches modifying an additive PAF. It would be obvious to
`
`modify Pillsbury with the multiplicative PAF (a2) of Ebel, which would then be
`
`modified in accordance with the teachings of Pillsbury. A POSA would be
`
`motivated to make that modification because the POSA (looking at FIGS. 3a–5 of
`
`Ebel) would see that Ebel’s equations provide a better “fit.” The POSA would see
`
`that that better fit would provide increase accuracy, reduce iterations, and thus
`
`increase speed and efficiency. Such basic-engineering motivations are available to
`
`supply a rationale for combining under the flexible KSR standard.
`
`2.
`
`Remaining Substitute Claims are also obvious
`
`Further, the Substitute Claims are generally a generic combination of various
`
`conventional components (e.g., adding a “network” or time-out function). A POSA
`
`would be motivated to add various useful components for analogous reasons as more
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`Case No. IPR2019-00500
`Patent No. 9,737,154
`
`tools are added to the Swiss Army knife or restaurants add more items to buffets.
`
`Such provides a motivation to combine Finkelstein (for a count function), Luff (for
`
`a time-out function), and Collins (for network). Such is sufficient given the generic
`
`nature of the relevant limitations in the Substitute claims.
`
`3.
`
`Petitioner does NOT admit the references are not
`analogous
`
`This Board has already rejected PO’s argument that the field of endeavor is
`
`limited to air mattress, but instead concluded that the relevant filed is pneumatic
`
`systems. See Inst. Dec. at 27–28. PO does not present any new evidence that would
`
`change that careful analysis. Instead, new evidence shows that even PO’s experts
`
`believe that the relevant field is broader than air mattresses per se. See, e.g., Ex.
`
`1062 at 10:17–11:13 (Dr. Messner describing that, although he has no per se
`
`engineering experience with air beds, he is nonetheless qualified as an expert
`
`because he has “extensive experience in controls, extensive background in
`
`mechanical engineering, in design, in automatic control systems, all of which are
`
`relevant to this case.” (emphasis added)); Ex. 1038 at 69:2–71:5 (similarly, Dr.
`
`Edwards suggesting, e.g., tire pressure monitoring systems and handwashing
`
`systems, within the relevant field).
`
`III. CONCLUSION
`
`For the foregoing reasons, the MTA should be denied.
`
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`Case No. IPR2019-00500
`Patent No. 9,737,154
`
`Date: April 2, 2020
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`Respectfully Submitted,
`SPENCER FANE LLP
`
`By /s/Kyle L. Elliott .
`Kyle L. Elliott, Reg. No. 39,485
`Kevin S. Tuttle, Reg. No. 52,307
`Brian T. Bear (pro hac vice)
`Mark A. Thornhill (pending pro hac vice)
`Spencer Fane LLP
`1000 Walnut Street, Suite 1400
`Kansas City, Missouri 64106-2140
`Telephone: (816) 474-8100
`
`Jaspal S. Hare, Reg. No. 66,988
`jhare@spencerfane.com
`Spencer Fane LLP
`5700 Granite Pkwy, Suite 650
`Plano, TX 75024
`
`Counsel for Petitioner American National
`Manufacturing, Inc.
`
`
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`Case No. IPR2019-00500
`Patent No. 9,737,154
`
`CERTIFICATE OF SERVICE
`
`Pursuant to 37 C.F.R. § 42.6(e), the undersigned hereby certifies that a copy
`
`of the foregoing PETITIONER’S SURREPLY TO PATENT OWNER’S MOTION
`
`TO AMEND (PAPER 42) is served in its entirety on April 2, 2020, by electronic
`
`mail, as authorized by Patent Owner’s Updated Mandatory Notices, directed to the
`
`attorneys of record for Patent Owner at the following correspondence address of
`
`record:
`
`Steven A. Moore
`stevemoore@zhonglun.com
`ZHONG LUN
`4322 Wilshire Boulevard, Suite 200
`Los Angeles, CA 90010
`
` Kecia J. Reynolds
`kecia.reynolds@pillsburylaw.com
`PILLSBURY WINTHORP SHAW
`PITTMAN LLP
`1200 Seventeenth Street, NW
`Washington, DC 20036
`
`Luke Toft
`ltoft@foxrothschild.com
`
`
`
`
`
`Andrew Hansen (pro hac vice)
`ahansen@foxrothschild.com
`
`Archana Nath (pro hac vice)
`anath@foxrothschild.com
`
`Elizabeth A. Patton (pro hac vice)
`epatton@foxrothschild.com
`
`FOX ROTHSCHILD LLP
`222 South Ninth Street, Suite 2000
`Minneapolis, MN 55402
`
`
`Date: April 2, 2020
`
`
`
`
` /s/Kyle L. Elliott .
`Kyle L. Elliott (Reg. No. 39,485)
`.
`Attorney for Petitioner
`American National Manufacturing, Inc.
`
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`WA 14551779.2
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