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`EXHIBIT 2
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`Case 2:23-cv-00059-JRG-RSP Document 363-4 Filed 02/28/25 Page 2 of 5 PageID
`#: 14868
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`UNITED STATES DISTRICT COURT
`FOR THE EASTERN DISTRICT OF TEXAS
`MARSHALL DIVISION
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`TOUCHSTREAM TECHNOLOGIES, INC.,
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`Plaintiff,
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`v.
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`CHARTER COMMUNICATIONS, INC., et al.,
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`Defendants.
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`TOUCHSTREAM TECHNOLOGIES, INC.,
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`Plaintiff,
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`v.
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`COMCAST CABLE COMMUNICATIONS,
`LLC, D/B/A XFINITY, et al.,
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`Defendants.
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`Lead Case No. 2:23-cv-00059-JRG
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`Member Case No. 2:23-cv-00062-JRG
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`CHARTER DEFENDANTS'
` DISCLOSURE OF FINAL INVALIDITY THEORIES,
`FINAL PRIOR ART REFERENCES/COMBINATIONS, AND FINAL EQUITABLE
`DEFENSES PURSUANT TO THE THIRD AMENEDED DOCKET CONTROL ORDER
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`Case 2:23-cv-00059-JRG-RSP Document 363-4 Filed 02/28/25 Page 3 of 5 PageID
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`Pursuant to the Third Amended Docket Control Order (Dkt. 205), Charter hereby discloses
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`its final invalidity theories, final prior art references/combinations, and final equitable defenses.
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`Charter reserves the right to supplement this statement as appropriate. Charter does not waive any
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`claims or defenses that the Court denied in prior rulings, including on motions for summary
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`judgment and during claim construction, and reserves the right to appeal those decisions. Further,
`Further,
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`Charter reserves the right to present evidence regarding the state of the art as relevant to other
`Charter reserves the right to present evidence regarding the state of the art as relevant to other
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`issues presented at trial.
`issues presented at trial.
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`Charter understands that Touchstream accuses Charter of directly infringing claims 1 and
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`7 of U.S. Patent No. 8,356,251; claims 12 and 13 of U.S. Patent No. 11,048,751; and claims 17,
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`18 and 20 of U.S. Patent No. 11,086,934 (collectively,
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`the "Asserted Claims" of the "Asserted
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`Patents")
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`Charter will not be asserting at trial that the Asserted Patents are invalid under 35 U.S.C.
`Charter will not be asserting at trial that the Asserted Patents are invalid under 35 U.S.C.
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`§§ 101, 102, 103.
`§§ 101, 102, 103.
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`Charter will assert at trial that the Asserted Claims are invalid for lack of written description
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`under 35 U.S.C. § 112.
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`Dated: January 6, 2025
`January 6, 2025
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`Respectfully submitted,
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`/s/ Daniel L. Reisner
`Daniel L. Reisner, pro hac vice
`David Benyacar, pro hac vice
`Elizabeth A. Long
`Melissa Brown, pro hac vice
`Robert Stout, pro hac vice
`Arnold & Porter Kaye Scholer LLP
`250 West 55th Street
`New York, NY 10019
`daniel.reisner@arnoldporter.com
`david.benyacar@arnoldporter.com
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`1
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`Case 2:23-cv-00059-JRG-RSP Document 363-4 Filed 02/28/25 Page 4 of 5 PageID
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`elizabeth.long@arnoldporter.com
`melissa.brown@arnoldporter.com
`robert.stout@arnoldporter.com
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`Dina M. Hayes, pro hac vice
`Arnold & Porter Kaye Scholer LLP
`70 West Madison Street, Suite 4200
`Chicago, IL 60602
`dina.hayes@arnoldporter.com
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`Deron Dacus (State Bar No. 00790553)
`THE DACUS FIRM, P.C.
`821 ESE Loop 323, Suite 430
`Tyler, TX 75701
`Tel: (903) 705-1117
`Fax: (903) 581-2543
`ddacus@dacusfirm.com
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`Carson D. Anderson, pro hac vice
`3000 El Camino Real, Bldg. 5, Suite 500
`Palo Alto, CA 94306
`carson.anderson@arnoldporter.com
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`Marc A. Cohn, pro hac vice
`601 Massachusetts Avenue, NW
`Washington, DC 20001
`marc.cohn@arnoldporter.com
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`Counsels for Defendant Charter
`Communications, Inc., Charter
`Communications Operating, LLC, Spectrum
`Management Holding Company, LLC, Time
`Warner Cable Enterprises, LLC, Spectrum Gulf
`Coast, LLC, Charter Communications, LLC
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`Case 2:23-cv-00059-JRG-RSP Document 363-4 Filed 02/28/25 Page 5 of 5 PageID
`#: 14871
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`CERTIFICATE OF SERVICE
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`The undersigned certifies that the foregoing document and all attachments thereto are being
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`filed electronically in compliance with Local Rule CV-5(a). As such, this document is being served
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`January 6, 2025, on all counsel of record, each of whom is deemed to have consented to electronic
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`service. L.R. CV-5(a)(3)(A).
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`/s/ Daniel Reisner
`Daniel Reisner
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