Cisco Systems, Inc. v. Vusura Technology LLC - IPR2026-00255

Petitioner’s Opposition to Patent Owner’s Request for Discretionary Denial of Institution

1009 June 2, 2026 Email from Petitioner’s Counsel to Patent Owner’s Counsel in the Litigation Containing the Sotera Plus Stipulation, the No Indefiniteness Stipulation, and Withdrawal of Indefiniteness Positions for the ’303 Patent

1010 USPTO Patent Public Search Advanced Search Overview, Quick Reference Guide, 2021

1011 Screenshots of Prior Art Searches Run Using the USPTO’s Patent Public Search Tool

1012 U.S. Patent Family Tree for U.S. Provisional Patent Application Ser. No. 61167105, generated using the PatBase tool

1013 Comparison of specification (including claims) of U.S. Patent No. 8,577,000 (the Parent ’000 Patent) with specification (including claims) of U.S. Patent No. 8,977,242, generated using the Litera Compare tool

1014 Printout of 11 Unique Hits (including EX1004 Roundtree) from Prior Art Search Run Using the USPTO’s Patent Public Search Tool at EX1011, 3

1015 Printout of 23 Unique Hits (including EX1004 Roundtree) from Prior Art Search Run Using the USPTO’s Patent Public Search Tool at EX1011, 4

1016 Printout of 42 Unique Hits (including EX1004 Roundtree and the Parent ’000 Patent) from Prior Art Search Run Using the USPTO’s Patent Public Search Tool at EX1011, 5-6

1017 Printout of 19 Unique Hits (including EX1004 Roundtree) from Prior Art Search Run Using the USPTO’s Patent Public Search Tool at EX1011, 7-8

1018 Comparison of specification (including claims) of U.S. Patent No. 10,198,741 (the ’741 Patent) with specification (including claims) of U.S. Patent No. 11,227,303 (the ’303 Patent), generated using the Litera Compare tool

1019 Judge Gilstrap’s (E.D. Texas) Calendar for July 12, 2027

1020 Federal District Court Caseload Management Statistics – December 2025

1021 Patent Owner’s November 10, 2025 Disclosure of Asserted Claims and Preliminary Infringement Contentions Pursuant to P.R. 3-1, in Case No. 225-cv-00871-JRG, captioned as Vusura Technology LLC v. Cisco Systems, Inc. (E.D. Texas) (the Litigation)

1022 Prosecution History of U.S. Patent No. 8,577,000 (the Parent ’000 Patent)

1023 Printout from Nevada Business Portal (showing Patent Owner’s formation date as December 29, 2023)

1024 Inventor Assignment to Patent Owner, dated January 30, 2024, of Thirty Patent Properties (including the ’303 Patent and the ’741 Patent)

1025 Assignment from Alto Ventures, Inc. to Patent Owner, dated June 22, 2025, of U.S. Patent No. 7,418,092

1026 Comparison of specification (including claims) of U.S. Patent No. 7,418,092 (the ’092 Patent) with specification (including claims) of U.S. Patent No. 11,227,303 (the ’303 Patent), generated using the Litera Compare tool

1027 U.S. Patent Family Tree for U.S. Patent No. 7,418,092 (the ’092 Patent), generated using the PatBase tool

1028 Printout of PostNet webpages

1029 Cisco Webex Contact Center Service Offer Disclosure

1030 Patent Owner’s Exhibit C claim chart for the ’303 Patent, which accompanied its November 10, 2025 Infringement Contentions (EX1021)

1031 Cisco Announces Agreement to Acquire BroadSoft, a Leader in Cloud Calling and Contact Center Solutions, October 23, 2017

1032 Cisco Completes Acquisition of BroadSoft, February 2, 2018

1033 Cisco Build America, Buy America (BABA) Certification for US BEAD Program

1034 Cisco Supplier List

1035 Flex Honored by Cisco with 2023 EMS Partner of the Year Award, November 9, 2023

1036 Flex Further Boosts U.S. Manufacturing Capacity to Meet Growing Demand for Data Center Critical Power Solutions April 28, 2025

1037 Cisco’s Form 10-K for the fiscal year ending July 26, 2025

1038 Cisco Networking Academy Global Impact Infographic

Patent Owner's Preliminary Response

U.S. Patent No. 10,511,942 ('303 Patent Parent) File History

U.S. Patent No. 9,819,812 ('303 Patent Grandparent) File History

U.S. Patent No. 8,804,930 ('303 Patent GG Grandparent) File History

Pause, American Heritage Dictionary

U.S. Patent No. 10,511,942 ('303 Patent Parent)

Patent Owner's Discretionary Denial Request

Application Data Sheet for ’303 Patent Ancestor (filed Apr. 8, 2025)

U.S. Patent No. 10,198,741 to Wendell D . Brown (filed Apr. 1, 2016) (issued Feb. 5, 2019) (“’741 Patent”)

U.S. Patent No. 7,418,092 (filed Mar. 8, 2004) (issued Aug. 26, 2008) (“’092 Patent”)

Complaint, Vusura Technology LLC v. Cisco Systems, Inc., Case No. 2:25-cv-00871 (E.D. Tex. filed Aug. 25, 2025) (Dkt. 1)

Defendant Cisco Systems, Inc.’s Invalidity Contentions, Vusura Technology LLC v. Cisco Systems, Inc., Case No. 2:25-cv-00871 (E.D. Tex. served Jan. 9, 2026)

Complaint, Alto Ventures, Inc. v. Convergys Corp., No. 2-11-cv-01056 (D.N.V. filed June 27, 2011) (Dkt. 1)

First Amended Docket Control Order, Vusura Technology LLC v. Cisco Systems, Inc., Case No. 2:25-cv-00871 (E.D. Tex. entered Jan. 2, 2026) (Dkt. 31)

’741 Patent File History

Notice: NOTICE OF FILING DATE ACCORDED TO PETITION AND TIME FOR FILING PATENT OWNER PRELIMINARY RESPONSE

Notice: Power of Attorney

Notice: Mandatory Notice

Notice: Power of Attorney

EX-1007 Excerpts of J. Thorner, "Intelligent Networks", Artech House, Inc.

EX-1008 Excerpts of L. Goleniewski, "Telecommunications Essentials"

EX-1001 U.S. Patent No. 11,227,303 ("the '303 Patent")

EX-1002 Prosecution History of the '303 Patent ("File History")

EX-1005 WIPO International Publication No. WO 2006/130783

EX-1006 U.S. Pat. Publication No. 2007/0116227

EX-1003 Declaration of Petitioner’s Expert Thomas F. La Porta, Ph.D.

Petition: as filed

EX-1004 - US20070173237A1 (Roundtree)