`
`UNITED STATES DISTRICT COURT
`FOR THE EASTERN DISTRICT OF TEXAS
`MARSHALL DIVISION
`
`
`
`COBBLESTONE WIRELESS, LLC,
`
`
`Plaintiff,
`
`v.
`
`SAMSUNG ELECTRONICS CO., LTD.
`and SAMSUNG ELECTRONICS
`AMERICA, INC.
`
`
`Defendants.
`
`Case No. 2:23-cv-00285-JRG-RSP
`
`
`JURY TRIAL DEMANDED
`
`SAMSUNG ELECTRONICS CO. LTD. AND SAMSUNG
`ELECTRONICS AMERICA, INC.’S P.R. 3-3 AND 3-4
`INVALIDITY CONTENTIONS
`
`Defendants Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc.
`
`(collectively, “Defendants” or “Samsung”) hereby provide the following Preliminary Invalidity
`
`Contentions (“Contentions”) to Plaintiff Cobblestone Wireless LLC (“Plaintiff” or “Cobblestone”)
`
`for U.S. Patent Nos. 7,924,802 (“the ’802 patent”), 8,891,347 (“the ’347 patent”), 9,094,888 (“the
`
`’888 patent”), 10,368,361 (“the ’361 patent”), and 8,554,196 (“the ’196 patent”) (collectively, the
`
`“Asserted Patents”).
`
`I.
`
`PRELIMINARY STATEMENT AND RESERVATION OF RIGHTS
`
`In its Infringement Contentions dated September 28, 2023, Cobblestone asserted the
`
`following 61 claims1 (the “Asserted Claims”):
`
`• Claims 1–4, 6–10, 13, 14, 17, and 21–24 of the ’802 patent;
`
`
`1 Although Cobblestone’s infringement contentions originally identified claim 22 of the ’802
`patent as an asserted claim, Cobblestone provided no claim chart for this claim. Samsung reserves
`all rights to object to any future amended infringement chart for claim 22 of the ’802 patent.
`
`
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`Cobblestone Wireless, LLC
`Ex. 2028, IPR2024-00315
`Page 1 of 116
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`• Claims 1-4, 6-12, 14-17 of the ’347 patent;
`
`• Claims 9, 10, 12, 20, 21, and 23 of the ’888 patent;
`
`• Claims 10-13, 15, and 17 of the ’361 patent;
`
`• Claims 1–5, 7, 10, 12, 14, 17, 18, 20 and 21 of the ’196 patent;
`
`Samsung does not provide any Contentions directed to claims that Cobblestone has not
`
`asserted for purposes of infringement. To the extent Cobblestone may be permitted to assert
`
`additional claims in the future, Samsung reserves all rights to disclose new or supplemental
`
`contentions regarding such claims.
`
`Because the same claim scope must apply for both infringement and invalidity, these
`
`Contentions are based on Cobblestone’s assertions in its Infringement Contentions. Samsung does
`
`not thereby implicitly or explicitly agree with Cobblestone’s construction of the claims. Samsung
`
`reserves all rights to disclose new or supplemental invalidity contentions, including to address any
`
`construction of the claims rendered by the Court, changed theories of infringement, and any
`
`evidence obtained during the course of discovery.
`
`Subject to the rights reserved in these Contentions, all Asserted Claims are invalid under
`
`at least one or more of 35 U.S.C. §§ 102, 103, and/or 112. The Asserted Claims are invalid because
`
`they are anticipated and/or rendered obvious under 35 U.S.C. §§ 102 and 103. If Cobblestone
`
`contends or a fact-finder finds that one or more limitations of the Asserted Claims are not disclosed
`
`in the prior art identified as anticipatory, Samsung reserves the right to assert obviousness based
`
`on the identified references and/or to identify other references that would have rendered obvious
`
`the allegedly missing limitation. Furthermore, the obviousness combinations of references
`
`provided below and in the accompanying claim charts under 35 U.S.C. § 103 are exemplary only
`
`SAMSUNG’S PRELIMINARY INVALIDITY AND PATENT INELIGIBILITY CONTENTIONS
`-2-
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`Cobblestone Wireless, LLC
`Ex. 2028, IPR2024-00315
`Page 2 of 116
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`and are not intended to be exhaustive. If or when Cobblestone challenges the disclosure of any of
`
`
`
`these references with respect to particular limitations of the Asserted Claims, Samsung reserves
`
`the right to supplement these Contentions to assert additional or different bases for obviousness.
`
`Samsung reserves the right to use any combination of the references set forth in these Contentions
`
`to demonstrate the obviousness of the Asserted Claims. Additionally, certain claims of the
`
`Asserted Patents are invalid for failure to comply with the written description, enablement, and
`
`definiteness requirements of 35 U.S.C. § 112.
`
`Samsung expressly reserves the right to amend, correct, and/or supplement these
`
`Contentions in accordance with the Docket Control Order governing this case.
`
`*
`
`
`
`*
`
`
`
`*
`
`These Contentions reflect Samsung’s knowledge, investigation, and discovery as of the
`
`date of service. Samsung reserves the right to supplement these Contentions as appropriate and
`
`for any permissible reason. For example, pursuant to the Docket Control Order, Samsung reserves
`
`the right to supplement these Contentions after subsequent case events, including any disclosure
`
`by Cobblestone of amended or supplemental infringement contentions, any ruling by the Court on
`
`claim construction, or in response to arguments made and positions taken by Cobblestone during
`
`fact and expert discovery. Samsung also reserves the right to supplement these Contentions if it
`
`becomes aware of additional prior art, becomes aware of additional features of the prior art
`
`references cited below, or becomes aware of any other relevant information through discovery,
`
`including non-party discovery, or otherwise. Samsung also reserves the right to modify or
`
`supplement its Contentions based on the Court’s construction of the claims.
`
`SAMSUNG’S PRELIMINARY INVALIDITY AND PATENT INELIGIBILITY CONTENTIONS
`-3-
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`Cobblestone Wireless, LLC
`Ex. 2028, IPR2024-00315
`Page 3 of 116
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`
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`In addition to the charts attached hereto, Samsung expressly incorporates by reference, as
`
`if expressly set forth in these Contentions, all invalidity positions, prior art, and claim charts
`
`asserted against Cobblestone in any Cobblestone lawsuit or IPR proceeding by Samsung, prior
`
`defendants, petitioners, and potential or actual licensees to the Asserted Patents. Samsung also
`
`incorporates any future discovery responses and expert reports in such litigations or proceedings.
`
`Samsung’s citations to disclosures in any particular prior art reference are not (and are not
`
`intended to be) exhaustive but rather illustrative. Samsung reserves the right to rely on uncited
`
`portions of the prior art references and on other publications and expert testimony as aids in
`
`understanding and interpreting the cited portions, as providing context thereto, as additional
`
`evidence that the prior art discloses a claim limitation or the alleged invention as a whole, as
`
`evidence of the state of the art at a particular time, as evidence of the obviousness factor of
`
`contemporaneous development by others, and as evidence of motivation to combine. Samsung
`
`also reserves the right to rely on uncited portions of the prior art references, other publications,
`
`and testimony, including expert testimony, to establish bases for combination of prior art
`
`references that render the charted claims obvious. Due to the related nature of the Asserted Patents,
`
`Samsung also reserves the right to rely on any cited portions of a prior art reference for one
`
`Asserted Patent against all Asserted Patents. Samsung also reserves the right to rely upon any
`
`documentary or testimonial evidence of the existence of any systems that embodied or practiced
`
`the disclosures found in the accompanying invalidity charts, for example as discussed in the prior
`
`art references cited herein, as such systems may qualify as prior art under 35 U.S.C. § 102(g).2
`
`
`2 Citations herein refer to the pre-AIA version of Title 35 of the U.S. Code.
`
`
`SAMSUNG’S PRELIMINARY INVALIDITY AND PATENT INELIGIBILITY CONTENTIONS
`-4-
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`Cobblestone Wireless, LLC
`Ex. 2028, IPR2024-00315
`Page 4 of 116
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`Samsung intends to rely on admissions concerning the scope of the prior art relevant to the
`
`Asserted Patents found in, inter alia: the patent prosecution histories for the Asserted Patents and
`
`related patents and/or patent applications (including all prior art cited therein); any deposition
`
`testimony of the named inventors on the Asserted Patents and related patents and/or patent
`
`applications in this matter or any other matter; evidence and testimony relating to the level of skill
`
`in the art; and the papers filed and any evidence submitted by Cobblestone in connection with this
`
`matter.
`
`Samsung reserves the right to assert that the Asserted Claims are invalid under 35 U.S.C.
`
`§ 102(f) in the event Samsung obtains additional evidence that the inventors named in any of the
`
`Asserted Patents did not invent the subject matter claimed therein. Should Samsung obtain such
`
`evidence, it will provide the name of the person(s) from whom and the circumstances under which
`
`the alleged invention or any part of it was derived.
`
`These Contentions are not intended to include or otherwise reflect Samsung’s claim
`
`interpretations. Because the Court has not yet construed any of the claims in this litigation,
`
`Samsung bases these Contentions at least on its present understanding of Cobblestone’s view and
`
`application of the claim scope, to the extent that view can be inferred from Cobblestone’s actual
`
`and/or apparent application of those claims. But Samsung does not adopt any constructions or
`
`interpretations impliedly or expressly in these Contentions. Moreover, Samsung’s Contentions
`
`may reflect alternative positions as to claim construction and scope.
`
`For the purposes of these Contentions, Samsung has made assumptions regarding possible
`
`meanings of indefinite claim terms. By making these assumptions, Samsung does not admit that
`
`any claim language satisfies 35 U.S.C. § 112. Similarly, the use of asserted claim terms herein
`
`SAMSUNG’S PRELIMINARY INVALIDITY AND PATENT INELIGIBILITY CONTENTIONS
`-5-
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`Cobblestone Wireless, LLC
`Ex. 2028, IPR2024-00315
`Page 5 of 116
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`should not be understood to mean that such terms, as used in the Asserted Patents or claims thereof,
`
`
`
`are definite or otherwise comply with the conditions of patentability under 35 U.S.C. § 112.
`
`Likewise, the use of asserted claim terms herein should not be understood to suggest or imply a
`
`common, usual, ordinary, customary, plain, or accepted meaning in the art for any such terms.
`
`By providing these Contentions, Samsung is not waiving nor limiting its rights to make
`
`arguments in the future about the proper scope of the claims or to advance alternative constructions
`
`to those Cobblestone advocates. Samsung expressly reserves the right to argue for such alternative
`
`claim constructions during this litigation and to supplement these Contentions after the Court has
`
`issued a claim construction ruling.
`
`Samsung’s factual investigations, including its investigation of prior art and grounds for
`
`invalidity, is ongoing. Further, Samsung’s invalidity positions will be the subject of expert
`
`testimony. Samsung reserves the right to supplement these Contentions, including, without
`
`limitation, adding additional prior art and grounds of invalidity in accordance with the Federal
`
`Rules of Civil Procedure and Docket Control Order in this case, or otherwise.
`
`II.
`
`PERSON HAVING ORDINARY SKILL IN THE ART
`
`A person of ordinary skill in the art (“POSITA” or “POSA”), on or about:
`
`•
`
`•
`
`•
`
`•
`
`•
`
`January 23, 2008 for the ’802 patent,
`
`July 28, 2011 for the ’347 patent,
`
`April 29, 2011 for the ’888 patent,
`
`August 1, 2014 for the ’361 patent, and
`
`August 24, 2011 for the ’196 patent
`
`SAMSUNG’S PRELIMINARY INVALIDITY AND PATENT INELIGIBILITY CONTENTIONS
`-6-
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`Cobblestone Wireless, LLC
`Ex. 2028, IPR2024-00315
`Page 6 of 116
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`would have had at least a Bachelors’s degree in Computer Science, Electrical Engineering, or a
`
`
`
`related field, and three to five years of experience in services and application implementation in
`
`communication networks. Additional graduate education could substitute for professional
`
`experience, and vice versa.
`
`III.
`
`IDENTIFICATION OF RELEVANT PRIOR ART
`
`A.
`
`Priority Dates
`
`Cobblestone has not yet alleged that any Asserted Claim in any Asserted Patent is entitled
`
`to a priority date earlier than the filing date of each Asserted Patent. To the extent that Cobblestone
`
`attempts ot assert an earlier priority date for any Asserted Claim, Samsung reserves the right to
`
`amend this disclosure to address any such claim.
`
`B.
`
`Prior Art Patent Publications
`
`Based on their investigation to date, Samsung has provided in the list below the prior art
`
`patent publications presently known to Samsung that it contends anticipate and/or render obvious
`
`the Asserted Claims. The prior art identified in these Contentions discloses (i.e., anticipates and/or
`
`renders obvious) the elements of the Asserted Claims either explicitly or inherently. Similarly, the
`
`prior art patent publications listed on the face of the Asserted Patents discloses (i.e., anticipates
`
`and/or renders obvious) the elements of the Asserted Claims either explicitly or inherently, and
`
`Samsung reserves the right to rely on any such reference.
`
`Prior-art patents or publications included in these Contentions may be related (such as a
`
`divisional, continuation, continuation-in-part, parent, or child) to earlier or later-filed patents or
`
`publications, may have counterparts filed in other jurisdictions, or may incorporate (or be
`
`incorporated by) other patents or publications by reference. The listed patents or publications are
`
`SAMSUNG’S PRELIMINARY INVALIDITY AND PATENT INELIGIBILITY CONTENTIONS
`-7-
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`Cobblestone Wireless, LLC
`Ex. 2028, IPR2024-00315
`Page 7 of 116
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`intended to be representative of these other patents or publications to the extent they exist.
`
`
`
`Samsung accordingly reserves the right to modify, amend, or supplement these Contentions with
`
`these related patents or publications, as well as other prior art references, upon further
`
`investigation. Additionally, any reference in these Contentions, including the appendices and
`
`exhibits thereto, to a specific subsection or subsections of 35 U.S.C. § 102, is merely exemplary,
`
`and Samsung expressly reserves the right to rely on additional or other sections of 35 U.S.C. §
`
`102, as appropriate. If Cobblestone asserts that one or more of these references or systems fails to
`
`disclose one or more elements of a claim, Samsung reserves the right to also use those references
`
`to invalidate the claim under 35 U.S.C. § 103.
`
`Discovery is ongoing, and Samsung’s prior art investigation and third-party discovery is
`
`therefore not yet complete. Samsung reserves the right to present additional items of prior art
`
`under 35 U.S.C. §§ 102 and/or 103 that are located during the course of discovery or further
`
`investigation. For example, Samsung expects to receive documents from additional third parties
`
`either through informal requests or under subpoenas that are believed to have knowledge,
`
`documentation, and/or corroborating evidence concerning some of the prior art listed and
`
`discussed below. These third parties include without limitation the authors, inventors, or assignees
`
`of the references listed in these disclosures.
`
`Name
`
`Country of Origin Publication/Issue Date
`
`U.S. Patent Application Publication No.
`2005/0249266 (“Brown-266”)
`
`U.S. Patent Application Publication No.
`2009/0052556 (“Fernandez”)
`
`U.S. Patent Application Publication No.
`2005/0135312 (“Montojo”)
`
`US
`
`US
`
`US
`
`November 10, 2005
`
`February 26, 2009
`
`June 23, 2005
`
`SAMSUNG’S PRELIMINARY INVALIDITY AND PATENT INELIGIBILITY CONTENTIONS
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`Page 8 of 116
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`
`U.S. Patent Application Publication No.
`2006/0276146 (“Suzuki”)
`
`US
`
`December 7, 2006
`
`U.S. Patent No. 7,162,218 (“Axness-218”)
`
`US
`
`January 9, 2007
`
`U.S. Patent Application Publication No.
`2006/0233147 (“Karabinis”)
`
`U.S. Patent No. 6,529,715 (“Kitko”)
`
`U.S. Patent Application Publication No.
`2006/0212773 (“Aytur”)
`
`U.S. Patent Application Publication No.
`2006/0281487 A1 (“Girardeau”)
`
`U.S. Patent Application Publication No.
`2007/0004350 A1 (“Yoon”)
`
`U.S. Patent Application Publication No.
`2007/0004351 A1 (“Dekker”)
`
`JP 2007258904A (“Nakayama-JP”)
`
`U.S. Patent No. 7,885,344 , U.S. Patent
`Application Publication No. 2007/0223608 A1
`(“Nakayama”)
`US 7,145,934 (“Liang”)
`U.S. Patent No. 8,036,702 (“Etemad”)
`U.S. Patent No. 6,876,645 (“Guey”)
`U.S. Patent No. 6,920,185 (“Hinson”)
`
`WIPO Patent Application Publication No.
`2005/109917 (“Laroia”)
`U.S. Patent No. 8,204,452 (“Lin”)
`U.S. Patent No. 9,830,642 (“Chang”)
`
`U.S. Patent Application Publication No.
`2006/0286974 (“Gore”)
`
`U.S. Patent Application Publication No.
`2008/0028395 (“Motta”)
`
`U.S. Patent Application Publication No.
`2009/0249321 (“Mandayam”)
`
`U.S. Patent Application Publication No.
`2012/0046022 (“Kalke”)
`
`U.S. Patent Application Publication No.
`2012/0157038 (“Menezes”)
`
`US
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`US
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`US
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`US
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`JP
`
`US
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`US
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`US
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`October 19, 2006
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`March 4, 2003
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`December 14, 2006
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`January 4, 2007
`
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`
`October 4, 2007
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`September 27, 2007
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`October 11, 2011
`April 5, 2005
`July 19, 2005
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`November 17, 2005
`June 19, 2012
`November 28, 2017
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`December 21, 2006
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`January 31, 2008
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`October 1, 2009
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`February 23, 2012
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`June 21, 2012
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`SAMSUNG’S PRELIMINARY INVALIDITY AND PATENT INELIGIBILITY CONTENTIONS
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`Page 9 of 116
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`U.S. Patent Application Publication No.
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`
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`
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`
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`(“Mandyam”)
`
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`(“Gore”)
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`3 Any discussion of a non-patent publication in either Section III.C or in one of the claim charts
`included herewith that discloses a corresponding product or system shall also apply with equal
`force to the underlying product or system. In other words, both the non-patent publication and the
`underlying product or system themselves qualify as prior art in the context that they are used
`herein.
`4 Discovery is currently ongoing, and Samsung will supplement these Contentions with respect to
`the public availability, as necessary, of any non-patent publication if and when more information
`becomes available. Indeed, Samsung expects to receive documents from third parties either
`through informal requests or under subpoenas that are believed to have knowledge, documentation,
`and/or corroborating evidence concerning the public availability of the identified non-patent
`publications.
`
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