throbber
UNITED STATES PATENT AND TRADEMARK OFFICE
`
`
`
`
`
`
`
`Paper No. 52
`Filed: May 2, 2022
`
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`
`
`
`
`
`
`
`
`
`
`
`
`QUALCOMM INCORPORATED and
`ZYXEL COMMUNICATIONS CORPORATION1,
`
`Petitioners,
`
`v.
`
`UNM RAINFOREST INNOVATIONS,
`
`Patent Owner.
`
`
`
`
`
`
`
`
`
`
`PTAB Case No. IPR2021-00375
`Patent 8,265,096 B2
`
`
`
`
`
`
`
`
`
`
`REPLY IN SUPPORT OF
`PATENT OWNER’S REVISED MOTION TO AMEND
`
`
`1 ZyXEL Communications Corporation was joined as a Petitioner in this proceeding
`based on a petition and motion for joinder filed in IPR2021-00734, which were
`granted.
`
`

`

`TABLE OF CONTENTS
`
`I.
`
`II.
`
`A.
`
`B.
`
`INTRODUCTION ........................................................................................... 1
`
`PATENT OWNER’S REVISED MOTION SHOULD BE TREATED AS A
`REPLY ............................................................................................................. 2
`
`PATENT OWNER’S REVISED MOTION IS A REPLY. ....................... 3
`
`PATENT OWNER’S PAPER PROPERLY ADDRESSES WRITTEN
`DESCRIPTION SUPPORT ....................................................................... 4
`
`III.
`
`PATENT OWNER’S WRITTEN DESCRIPTION SUPPORT IS PROPER. 7
`
`IV. THE PROPOSED AMENDED CLAIMS ARE PATENTABLE. .................. 9
`
`V.
`
`CONCLUSION ..............................................................................................12
`
`
`
`ii
`
`

`

`TABLE OF AUTHORITIES
`
`CASES:
`
`B.E. Tech., L.L.C. v. Google, Inc., No. 2015-1827,
`2016 U.S. App. LEXIS 20591, (Fed. Cir. Nov. 17, 2017) .................................... 8
`
`
`REGULATIONS:
`
`37 C.F.R. § 42.1 ......................................................................................................... 4
`
`ADMINISTRATIVE DECISIONS:
`
`
`Greene's Energy Grp., LLC v. Oil States Energy Services, LLC, IPR2014-00216,
`Paper 53 at 26 (PTAB May 1, 2015) .................................................................... 8
`
`
`Intel Corp. v. Alacritech, Inc., IPR2017-01392, Paper 81 at 64–65
`(PTAB Nov. 26, 2018) .......................................................................................... 7
`
`
`Lectrosonics, Inc. v. Zaxcom, Inc., IPR2018-01129, Paper 15 at 8
`(PTAB Feb. 25, 2019) .......................................................................................4, 5
`
`
`Lippert Components, IPR2018-00777, Paper 28 at 52
`
`(PTAB Sept. 24, 2019) ................................................................................ 5, 6, 8
`
`Orthofix Medical Inc. v. Spine Holdings, LLC, IPR2020-01411, Paper 33 at 3,
`(PTAB Oct. 27, 2021) ............................................................................................ 3
`
`
`Respironics, Inc. v. Zoll Med. Corp., IPR2013-00322, Paper 46 at 24
`(PTAB Sept. 17, 2014) ......................................................................................... 8
`
`
`
`
`
`
`
`
`
`
`
`
`
`iii
`
`

`

`I.
`
`INTRODUCTION
`
`Patent Owner UNM Rainforest Innovations (hereinafter “UNM” or “Patent
`
`Owner”) respectfully submits this Reply in Support of its Revised Motion to Amend
`
`to request amendment of certain claims of U.S. Patent 8,265,096 B2 (EX1001, “’096
`
`Patent”), responding to Petitioners’ Opposition To Patent Owner’s Revised Motion
`
`To Amend (Paper 49) (“Opposition”).
`
`First, Petitioners argue that Patent Owner’s Revised Motion should be
`
`expunged because it does not suggest new amendments in addition to those already
`
`submitted in the original Motion to Amend. Second, Petitioners argue that when
`
`treated as a reply, Patent Owner’s Revised Motion should not be allowed to address
`
`the written description support because it is too late to do so. However, the Board
`
`already recognized in the Preliminary Guidance that the claims as a whole find
`
`proper support in the written description. Further, Petitioners have already
`
`unilaterally administered the appropriate self-help by submitting its “sur-reply” in a
`
`full 25 pages—which is the allotment for an opposition to a revised motion, and the
`
`approach taken by Patent Owner is expressly contemplated by the Office’s rules.
`
`Third, Petitioners’ complaint that Patent Owner relies on string citations without
`
`further explanation is unfounded because Patent Owner supplied short precise
`
`citations along with descriptive parentheticals explaining the disclosure individually
`
`
`
`1
`
`

`

`for each and every claim element. Fourth, for the reasons explained below, the
`
`proposed substitute claims are not rendered obvious over the prior art.
`
`II.
`
`PATENT OWNER’S REVISED MOTION SHOULD BE TREATED
`AS A REPLY
`
`In its Opposition, Petitioners asked for extraordinary remedies that would be
`
`unjust and highly prejudicial to Patent Owner and the integrity of these proceedings.
`
`Petitioners concede that Patent Owner’s Motion is a reply and that the Opposition is
`
`a sur-reply. Paper 49 at 5. In a parallel filing, Petitioners recognized that there is
`
`uncertainty surrounding the interpretation and application of the rules governing the
`
`revised motion to amend practice. IPR2021-00377, Paper 47 at 12, fn. 1. Yet,
`
`Petitioners ask that Patent Owner’s Motion be disregarded and expunged. Paper 49
`
`at 3-4. Not surprisingly, no decisions, including the ones on which Petitioners rely,
`
`support such a draconian result. Petitioners then ask that the written description
`
`support that Patent Owner provided in direct response to the Board’s Preliminary
`
`Guidance be completely disregarded. Id. at 5-8. Again, such drastic relief has not
`
`been granted, even in the decisions Petitioners cite. What Petitioners actually seek
`
`is to strip Patent Owner of its due process rights by depriving Patent Owner the
`
`meaningful opportunity to preserve its claims as required by the AIA and the
`
`Office’s implementing rules. Petitioners’ extreme positions must therefore be
`
`rejected.
`
`
`
`2
`
`

`

`A. PATENT OWNER’S REVISED MOTION IS A REPLY.
`
`As Petitioners candidly (and accurately) stated, “P.O.’s RMTA … can only
`
`be considered a reply.” Paper 49 at 5. Although the amendments requested in Patent
`
`Owner’s Motion are identical to those requested in Patent Owner’s original Motion
`
`to Amend (Paper 37), Patent Owner submitted its revised Motion to address certain
`
`shortcomings identified by the Board in its Preliminary Guidance. Patent Owner
`
`styled its filing a Revised Motion to Amend out of an abundance of caution because,
`
`as Petitioners recognized in a parallel filing, the rules regarding the form of a filing
`
`after issuance of the Board’s preliminary guidance are uncertain. IPR2021-00377,
`
`Paper 47 at 12, fn. 1. Petitioners’ argument for the most extreme remedy—
`
`expungement of the paper—is improper and unnecessary form-over-substance under
`
`the circumstances. The very decision on which Petitioners rely demonstrates as
`
`much. See Orthofix Medical Inc. v. Spine Holdings, LLC, IPR2020-01411, Paper 33
`
`at 3 (PTAB Oct. 27, 2021). The Board there treated the revised motion to amend as
`
`a reply and, to offset any perceived unfairness, increased the page limit for
`
`Petitioner’s sur-reply. Id. (“Under the circumstances, we deem Paper 30 as Patent
`
`Owner’s reply to opposition to motion to amend. To afford Petitioner a fair
`
`opportunity, we increase the page limit for the sur-reply to reply to opposition to
`
`motion to amend from 12 pages to 25 pages.”). Here, Petitioners have already taken
`
`advantage of the enlarged 25 page limit in their Opposition.
`
`
`
`3
`
`

`

`Petitioners therefore feign prejudice if Patent Owner’s Motion is accepted.
`
`Paper 49 at 3. But, Petitioners were clearly able to fully respond to Patent Owner’s
`
`Motion in the allotted time. And, as noted above, Petitioners have submitted an
`
`Opposition using the same page limit (25) as Patent Owner’ Motion. Thus, the only
`
`threat of prejudice under these circumstances is to Patent Owner.
`
`Petitioners’ position that it is improper for Patent Owner to restate the same
`
`amendment from its original Motion to Amend (see Paper 49 at 2-3) is expressly
`
`belied by the Office rules that it cites but studiously misrepresents. Those rules
`
`provide that a “revised MTA may also include substitute claims, arguments or
`
`evidence previously presented in the original MTA.” 84 F.3d Reg. 9495, 9498 (Mar.
`
`15, 2019). Moreover, Petitioners’ positions are not in accord with construing rules
`
`in a manner that will secure a just and speedy result. 37 C.F.R. § 42.1. For example,
`
`Patent Owner could have addressed Petitioners’ complaint that it “filed an improper
`
`revised MTA” (Paper 49 at 3) by simply adding a superficial and inconsequential
`
`amendment to create the illusion of proper form. This would serve no meaningful
`
`purpose. Patent Owner therefore did what is intended: it filed a reply that
`
`specifically and fully addresses the issues raised in the Preliminary Guidance.
`
`B. PATENT OWNER’S PAPER PROPERLY ADDRESSES WRITTEN
`DESCRIPTION SUPPORT
`
`Petitioners point to Lectrosonics to argue that, as a reply, Patent Owner’s
`
`Motion should not be allowed to address the written description support because it
`4
`
`
`
`

`

`is too late to do so in the first instance on reply. Paper 49 at 4-5 (citing Lectrosonics,
`
`Inc. v. Zaxcom, Inc., IPR2018-01129, Paper 15 at 8 (PTAB Feb. 25, 2019)).
`
`Petitioners further cite Lippert to support the argument that Patent Owner’s more
`
`detailed identification of written description support for the original (as opposed to
`
`amended) claim elements is improper. Paper 49 at 5 (citing Lippert Components,
`
`IPR2018-00777, Paper 28 (PTAB Sept. 24, 2019)). This matter is distinguished
`
`from Lippert in two important and dispositive ways. First, unlike Lippert, the Board
`
`here already recognized in the Preliminary Guidance that the portions identified by
`
`Patent Owner meet the written description requirement: “(i) column 5, lines 17–18
`
`and lines 35–36, column 7, lines 23–24, column 7, line 61 to column 8, line 6, and
`
`column 9, lines 18–20 in the ’096 Patent disclosure and (ii) corresponding portions
`
`of the Specification, as filed, of the ’855 Application, . . . along with adjacent
`
`disclosures at paragraphs 35–37 and Figures 6A, 6B, 7 of the ’855 Application
`
`appear to provide adequate written description support for proposed substitute
`
`claims 44–47, 49, and 50 as a whole.” Paper 42 at 7 (emphasis added). Patent
`
`Owner merely addressed this part of the Preliminary Guidance.
`
`Further, Lippert is inapposite because it found the written description
`
`requirement lacking because of undue string citations.
`
`Exhibits 2012 and 2013 are deficient on the merits. As other Board
`panels have found, mere string citations to an original application’s
`disclosure without explanation are insufficient to meet a patent owner’s
`burden of production. . . . With the meager showing in Exhibits 2012
`5
`
`
`
`

`

`and 2013, it is unclear whether the citations for a given claim limitation
`are to be understood as a combination of disclosures that, taken
`together, disclose the corresponding limitation, or whether Patent
`Owner contends each citation within a string is sufficient to disclose the
`corresponding limitation. It is not the Board’s responsibility to search
`through the string citations to find sufficient written description support
`for each limitation, and we decline to do so.
`
`Lippert Components, IPR2018-00777, Paper 28 at 52. The patent owner in Lippert
`
`did indeed present string cites with no explanation as to what each cite was supposed
`
`to show. See IPR2018-00777, Exhibits 2012-2013. Unlike Lippert, Patent Owner
`
`identified—separately for each element—pinpoint citations along with parenthetical
`
`explanations to explain in detail how each claim element is disclosed. Compare id.
`
`with Motion at 5-20. Due to Patent Owner’s element-specific pinpoint citations with
`
`parenthetical explanations, the Board will not have to “search through the string
`
`citations to find sufficient written description support for each limitation” as it
`
`declined to do in Lippert.
`
`Finally, Petitioners argue that “if P.O.’s RMTA is deemed to be a reply, then
`
`this paper would be a sur-reply, which would prevent Petitioners from presenting
`
`new evidence to explain why P.O.’s alleged written description support is deficient.”
`
`Paper 49 at 6. Petitioners willfully ignore the fact that they did in fact address the
`
`written description support proffered by Patent Owner. Id. at 7-10. Indeed,
`
`Petitioners expanded their “sur-reply” from 12 to 25 pages to take full advantage of
`
`the opportunity to do so.
`
`
`
`6
`
`

`

`III. PATENT OWNER’S WRITTEN DESCRIPTION SUPPORT IS
`PROPER.
`
`Petitioners argue that “P.O.’s alleged showing of written description support
`
`consists exclusively of string citations, with no further explanation as to the cited
`
`materials supports the claims.” Paper 49 at 7. This is demonstrably false. Each of
`
`Patent Owner’s citations indicates specifically which claim element it pertains to,
`
`and includes a parenthetical explanation of its relevance, as demonstrated by the
`
`below example:
`
`
`
`Motion at 6; see also Motion at 5-20 for the remaining claim elements. Every last
`
`one of the allegedly supporting decisions cited by Petitioners is inapposite, as they
`
`all relate to “string citations without explanation.” See, e.g., Intel Corp. v.
`
`Alacritech, Inc., IPR2017-01392, Paper 81 at 64–65 (PTAB Nov. 26, 2018) (“mere
`
`
`
`7
`
`

`

`string citations without explanation . . .”); B.E. Tech., L.L.C. v. Google, Inc., No.
`
`2015-1827, 2016 U.S. App. LEXIS 20591, *21-22 (Fed. Cir. Nov. 17, 2017)
`
`(discussing “string citations without explanation”); Greene's Energy Grp., LLC v.
`
`Oil States Energy Services, LLC, IPR2014-00216, Paper 53 at 26 (PTAB May 1,
`
`2015) (“A string citation does not explain . . .”); Respironics, Inc. v. Zoll Med. Corp.,
`
`IPR2013-00322, Paper 46 at 24 (PTAB Sept. 17, 2014) (“Zoll's string citations
`
`[without explanation] amount to little more than an invitation … to peruse the cited
`
`evidence and piece together a coherent argument for them”); Lippert, IPR2018-
`
`00777, Paper 28 (concerning “string citations to an original application’s disclosure
`
`without explanation . . .”). Unlike every one of these cases, Patent Owner provided
`
`parenthetical explanations to every last one of its pinpoint citations, and has further
`
`indicated which specific claim element each is relevant to. These claim-element
`
`specific pinpoint citations with explanatory parentheticals minimizes the burden on
`
`the Board to verify that the written description properly supports the claim elements.
`
`Finally, Petitioners argue that Patent Owner does not show support for the
`
`original claim elements to the provisional ’798 Application. Paper 49 at 9. This is
`
`irrelevant. Patent Owner’s proposed amendment is contingent upon a finding of
`
`unpatentability of original claim 1. Written description support in the ’798
`
`Application for original claim 1 is provided in detail in Patent Owner’s Response
`
`(Paper 38) and sur-reply (Paper 43). If the Board finds this showing sufficient, then
`
`
`
`8
`
`

`

`Claim 1 will not be found unpatentable (because the primary prior art reference
`
`(Talukdar) does not predate the ’798 Application), and the Revised Motion to
`
`Amend will be rendered moot.
`
`IV. THE PROPOSED AMENDED CLAIMS ARE PATENTABLE.
`
`To start, Petitioners’ Opposition, for the most part, merely repeats verbatim
`
`the arguments in its original Opposition (Paper 41) which the Board already rejected
`
`in its Preliminary Guidance. (Paper 42). However, notably absent is Petitioners’
`
`original argument blatantly mischaracterizing the record by implying that the
`
`proposed amended limitation is ‘naturally present’ in the original claims which were
`
`“invalid over the combination of Talukdar and Li, as described in Ground of the
`
`Petition. Notably, the Board granted institution on Ground 1.” Paper 41 at 1.
`
`Petitioners intentionally omitted that the Board’s institution decision found only
`
`Claim 1 (the basis for proposed amended claim 44) likely to be obvious. As to Claim
`
`8, the Board found that “we are not persuaded that Petitioner establishes sufficiently,
`
`for the purpose of institution, that Talukdar and Nystrom renders obvious the subject
`
`matter of claim 8” on the basis of the claim element “wherein the second
`
`communication system has pilot symbols that are denser than those in the first
`
`communication system.” Paper 14 at 47. This, of course, is the exact proposed
`
`amended limitation added in Amended Claim 44. Tellingly, Petitioners removed
`
`this erroneous argument from their revised Opposition.
`
`
`
`9
`
`

`

`The additional claim element “wherein the second communication system has
`
`pilot symbols that are denser than those in the first communication system” is not
`
`taught by Talukdar, Li, or Nystrom. Petitioners rely solely on Li to teach this
`
`limitation, arguing first that if the disclosure of U.S. Provisional Patent Application
`
`No. 60/929,798 (“the ’798 Application”) teaches denser pilot symbols (as argued by
`
`Patent Owner), then so does Li. Paper 41 at 6. This is wrong for several reasons.
`
`First, Li does not rely on the same disclosure as the ’798 Application – naturally, the
`
`conclusions drawn by a POSITA would differ from two different disclosures.
`
`Second, Li addresses pilot symbols only in reference to its Fig. 7, which illustrates
`
`an embodiment of its invention and identifies the pilot symbols:
`
`first communications system
`
`second communications system
`
`
`
`
`
`EX1016 at Fig. 7. Li’s figure 7 illustrates the effect of Li’s teaching of halving the
`
`symbol period. Notably, the number of Pilot symbols before and after remains the
`
`same – there are seven pilot symbols during the same time-period both before and
`
`after Li’s modification.
`
` Further, as the Board already noted, “the first
`
`communication system (top graph in Li’s Figure 7) has two pilot symbols in a period
`
`
`
`10
`
`

`

`T, and the second communication system (bottom graph in Li’s Figure 7) also has
`
`two pilot symbols in period T.” Paper 42 at 13. Petitioners’ and their expert’s
`
`supposition that Li teaches more pilot symbols in the same time-period is explicitly
`
`contradicted by Fig. 7.
`
`Petitioners respond only by first admitting that “P.O. is correct that both
`
`frames of Figure 7, which relates to splitting symbols across both frequency and
`
`time, show the same number of total symbols and the same number of pilot
`
`symbols.” Paper 49 at 16 (emphasis added). Regardless, Petitioners argue that “this
`
`is simply because the two frames of figure 7 show different numbers of subcarriers.”
`
`Id. “If,” Petitioners speculate, “Frame 710 were expanded to show 12 subcarriers
`
`(the same number of subcarriers as Frame 700), there would be 14 pilot symbols in
`
`96 total symbols, resulting in more pilot symbols per unit time.” Id. However, this
`
`speculation is not disclosed in Li. The fact that Petitioners note that “nothing in the
`
`teachings of Li is limited to halving the number of subcarriers between the two
`
`communication systems” (id.) does not remedy this shortcoming. What is disclosed
`
`in Li’s Fig. 7 is two frames that have the same number of pilot symbols. Notably,
`
`Petitioners did not submit expert testimony from Dr. Roy, nor any portion of Li,
`
`indicating that a POSITA would have interpreted Li’s Fig. 7 in that manner. In
`
`summary, there is simply no support to credit Petitioners’ attorney argument that
`
`Fig. 7 should be interpreted to show more pilot symbols than it actually does.
`
`
`
`11
`
`

`

`Petitioners additionally argue that Li’s teaching (illustrated in Fig. 5)
`
`regarding shortening the symbol period implies that there will be more pilot symbols
`
`in a given time period. This is also explicitly contradicted by Li’s Fig. 7 which
`
`illustrates that—despite the shortened symbol period—the total number of pilot
`
`symbols (seven pilot symbols), as well as the number of pilot symbols during a time
`
`period T (two pilot symbols)—remains the same. The Board is correct in its finding
`
`that “Li does not disclose that the shortened period symbols are pilot symbols” and
`
`that “Li does not mention pilot symbols at all with respect to Figure 5.” Finally, Li
`
`does not disclose any example “showing that the second communication system
`
`would have twice the number of pilot symbols per unit time.” Paper 41 at 12. To
`
`the contrary, Li’s Fig. 5 does not reference pilot symbols at all, and Li’s figure 7,
`
`which is the only reference to pilot symbols, flatly contradicts Petitioners’ statement.
`
`The remainder of Petitioners’ argument is the same as that the Board has already
`
`considered and rejected in the Preliminary Guidance.
`
`V. CONCLUSION
`
`For the reasons set forth herein, Patent Owner asserts that the proposed
`
`amended claims meet all statutory requirements and respectfully requests that the
`
`Board allow proposed amended claim 44 and dependent amended claims 45-47, 49,
`
`and 50 in the event the corresponding original claims are found unpatentable.
`
`
`
`
`
`12
`
`

`

`Dated: May 2, 2022
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Respectfully submitted,
`
`
`
`
`
`/s/ Jay P. Kesan
`Jay P. Kesan, Reg. No. 37,488
`DIMUROGINSBERG, PC
`DGKEYIP GROUP
`1750 Tyson’s Blvd. Suite 1500
`Tysons Corner, VA 22102
`jkesan@dimuro.com
`Telephone: (703) 289-5118
`
`Alfonso Chan, Reg. No. 45,964
`SHORE CHAN LLP
`901 Main Street, Suite 3300
`Dallas, TX 75202
`achan@shorechan.com
`Telephone: (214) 593-9110
`
`Attorneys for Patent Owner
`UNM RAINFOREST INNOVATIONS
`
`
`
`13
`
`

`

`UPDATED LIST OF EXHIBITS
`
`Exhibit No.
`
`Descriptions
`
`2001
`
`2002
`
`2003
`
`2004
`
`2005
`
`2006
`
`2007
`
`2008
`
`2009
`
`2010
`
`2011
`
`2012
`
`2013
`
`2014
`
`2015
`
`2016
`
`2017
`
`
`
`Declaration of Dr. Branimir Vojcic
`
`’096 Provisional
`
`2018 Economic Impact Report
`
`’096 claim chart
`
`Dell litigation scheduling order
`
`Dell litigation amended scheduling order
`
`Dell litigation notice of withdrawn claims
`
`Asus litigation notice of withdrawn claims
`
`Apple litigation joint motion to dismiss with prejudice
`
`Apple litigation order of dismissal
`
`Asus ROG Phone 3 Home Page
`
`Asus litigation Qualcomm subpoena
`
`Supplemental Declaration of Dr. Branimir Vojcic
`
`Excerpts from 12-06-21 rough draft depo transcript of Sumit Roy,
`Ph.D.
`
`04/11/22 Declaration of Branimir Vojcic, D.SC., In Support of
`UNM Rainforest Innovations’ Revised Motion to Amend
`Declaration of Henning Schmidt in Support of Motion for
`Admission Pro Hac Vice
`Declaration of Cecil E. Key in Support of Motion for Admission
`Pro Hac Vice
`
`14
`
`

`

`CERTIFICATE OF SERVICE
`
`Pursuant to 37 C.F.R. §§ 42.6(e)(4) and 42.25(b), the undersigned certifies
`that on May 2, 2022, a complete copy of the Reply in Support of Patent Owner’s
`Revised Motion to Amend was filed electronically through the Patent Trial and
`Appeal Board’s PTABE2E System and provided, via electronic service, to the
`Petitioners by serving the correspondence address of record.
`
`Dated: May 2, 2022
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`/s/ Jay P. Kesan
`Jay P. Kesan
`
`
`
`
`
`15
`
`

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