Fish & Richardson P.C.
`1000 Maine Avenue, S.W.
`Suite 1000
`Washington, DC 20024
`
`202 783 5070 main
`202 783 2331 fax
`
`Thad Kodish
`Principal
`tkodish@fr.com
`+1 404-724-2792 direct
`
`August 14, 2023
`
`VIA E-MAIL
`
`Russ August & Kabat
`12424 Wilshire Boulevard
`12th Floor
`Los Angeles, CA 90025
`Phone: 310-826-7474
`
`Parker Bunt & Ainsworth
`100 E Ferguson
`Suite 418
`Tyler, TX 75702
`Phone: 903-531-3535
`
`Re:
`
`Headwater Research LLC v. Samsung Electronics Co., Ltd. et al., Case No. 2:22-cv-
`00422 (E.D. Tex.)
`
`Dear Counsel:
`
`Samsung Electronics Co., Ltd. (“Samsung”) has filed an inter partes review (IPR) petition
`(IPR2023-01250) with the Patent Trial and Appeal Board (PTAB) to address the validity of
`claims 1-20 of U.S. Patent No. 9,277,433 (“the ’433 Patent”). The tables in attached Appendix
`A list all grounds, challenged claims, and references asserted in IPR2023-01250.
`
`I write to inform you that Samsung hereby stipulates that if the PTAB institutes IPR2023-01250,
`Samsung agrees not to pursue any grounds raised in the IPR, any grounds raised within
`Samsung’s invalidity contentions that were raised or could have been raised in the IPR, or any
`grounds Samsung could have reasonably raised before the PTAB, in this district court litigation
`or any parallel proceeding. Sotera Wireless, Inc. v. Masimo Corp., Case IPR2020-01019, Paper
`12 (PTAB Dec. 1, 2020). Samsung reserves the right to assert in the District Court proceedings
`prior art that is not eligible for PTAB consideration, e.g., the system art noted in Appendix B
`below.1 Samsung’s reservation is consistent with a Sotera stipulation because the grounds listed
`in Appendix B are based on prior art that is ineligible for consideration before the PTAB, and
`that could not have been raised before the PTAB.
`
`1 Samsung notes that discovery in the District Court proceedings is currently ongoing and Samsung expects Google,
`Apple, Citrix, Nokia, and Microsoft to produce additional materials and/or testimony relating to the system art listed
`in Appendix B below. For the avoidance of doubt, Samsung reserves the right to rely on such forthcoming
`productions in the District Court proceedings.
`
`1
`
`SAMSUNG 1016
`
`

`

`
`
`
`
`
`Page 2
`
`
`For the sake of clarity and to avoid any doubt, if the PTAB declines to institute IPR2023-01250,
`Samsung reserves the right to assert any grounds of invalidity in the District Court proceedings
`against the ’433 Patent.
`
`
`
`
`Sincerely,
`
`
`
`
`
`Thad Kodish
`
`Attorney for Samsung Electronics Co., Ltd.
`
`
`
`
`
`
`
`2
`
`

`

`
`
`
`
`
`Page 3
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`
`
`Appendix A – Grounds and Prior Art References Used in IPR2023-01253
`
`
`Ground
`
`Claim(s)
`
`35 U.S.C. §103
`
`1A
`
`1B
`
`1C
`
`1D
`
`1E
`
`1-3, 6, 10-11, 13-14, 17
`
`Rao-Cole
`
`2-3, 5, 7-9, 16
`
`Rao-Cole-Freund
`
`2, 4
`
`12, 20
`
`15, 18-19
`
`Rao-Cole-Singh
`
`Rao-Cole-Montemurro
`
`Rao-Cole-Gandhi
`
`
`
`List of References
`
`
`Reference Name Details
`
`Rao
`
`Cole
`
`Freund
`
`Singh
`
`U.S. Patent Application Publication No. 2006/0039354
`
`U.S. Patent Application Publication No. 2008/0080458
`
`U.S. Patent No. 5,987,611
`
`U.S. Patent No. 8,381,127
`
`Montemurro
`
`U.S. Patent Application Publication No. 2009/0207817
`
`Gandhi
`
`U.S. Patent Application Publication No. 2008/0146268
`
`
`Appendix B – System Art
`
`
`System / OS / Application
`
`Android OS Versions 1.0, 1.1, 1.5, 1.6, 2.0, 2.0.1, 2.1, and 2.22
`
`Android Devices (e.g., HTC Dream/T-Mobile G1, Nexus One, Samsung GT-I7500, and
`emulators)
`
`Apple Devices (including iPhone, iPhone 3G, iPhone 3GS, and emulators)
`
`Symbian Devices (including Nokia E90, N95, N97, E72, and emulators)
`
`Windows Mobile Devices (including devices with Windows Mobile installed and emulators)
`
`
`2 Android OS Versions 1.0-2.2 correspond to Android API Levels 1-8.
`
`
`
`3
`
`

`

`
`
`
`
`
`Page 4
`
`System / OS / Application
`
`Windows XP Devices (including devices with Windows XP installed and emulators)
`
`iPhone OS including iPhone OS 1.0, 2.0, and 3.0
`
`Symbian OS including Symbian OS 9.1, 9.2, 9.3, 9.4, and associated platforms including S60
`3rd Edition, S60 3rd Edition, Feature Pack 1 and Feature Pack 2, and S60 5th Edition
`
`Windows Mobile including Windows Mobile 6.1 and Windows Mobile 6.5
`
`Windows XP including its various editions such as Home Edition and Tablet PC Edition
`
`JuiceDefender (including JuiceDefender and associated add-on application, UltimateJuice)
`
`GreenPower
`
`Microsoft Applications (including Microsoft Outlook Mobile, Windows Live, and MyPhone)
`
`Apple Applications (including Mail, Calendar, MobileMe, Backup, and Newsstand API)
`
`Citrix Applications (including XenApp, XenDesktop, NetScaler, Citrix Receiver, Citrix
`Cloud Bridge)
`
`
`
`
`
`
`
`
`
`4
`
`