Samsung Electronics Co., Ltd. et al. vs. Network-1 Technologies, Inc.

Explore the PTAB proceeding IPR2026-00116 filed by Samsung Electronics Co., Ltd. et al. on 2025-11-07. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00116

Filing Date

2025-11-07

Accorded Filing Date

2025-11-07

Institution Decision Date

2026-04-28

Last Modified Date

2026-05-29

Proceeding Type

IPR

Termination Date

2026-04-28

Trial Status

Institution Denied

Parties & Counsel

Petitioner

Samsung Electronics Co., Ltd. et al.

Represented By

Fink, Williamet al

Patent Owner / Respondent

Network-1 Technologies, Inc.

Represented By

Heim, Michaelet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2400 - Computer Networks, Multiplex & Cybersecurity

Patent Information

1 Patent Involved

Respondent Application Number 18111669

Respondent Patent Number 11973864

External Links

Espacenet

Google Patents

Respondent Inventor John A. Nix

Respondent Tech Center TC 2400 - Computer Networks, Multiplex & Cybersecurity

Address and Attorney/Agent Information

23 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name AMSTER, ROTHSTEIN & EBENSTEIN LLP

Customer Number 1912

Address 405 LEXINGTON AVENUE, FLOOR 48, NEW YORK, NY, 10174, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
22031	Christopher Dunham	212-278-0400
24490	Jeffrey Schwab	212-885-9215
25871	Philip Gottfried	212-336-8000
27476	Neil Zipkin	212-336-8120
28678	John White	212-336-8193
29403	Anthony Lo Cicero	212-697-5995
30259	Kenneth George	212-336-8090
31643	Douglas Miro	212-336-8000
32781	Charles Macedo	212-336-8000
38557	Marion Metelski	212-336-8077
39992	Gary Gershik	212-336-8000
40837	Paul Teng	516-424-5401
41834	Steven Hertzberg	212-336-8060
42889	Alan Miller	212-336-8000
45343	Brian Comack	212-336-8000
46494	Benjamin Halpern	212-336-8095
51431	Keith Barkaus	212-382--0700
63679	Brian Amos	212-336-8123
69386	Hajime Sakai	212-336-8124
80964	Darren Haber	212-336-8192
81259	Thomas Hart	212-336-8000
81535	Andrew Gorman	212-336-8186
81796	Adam Kravitz	949-292-4912

Proceeding Documents

Institution Decision: Deny DECISION

2026-04-28 FILING PARTY: BOARD

Download

Director Discretionary Decision: Refer RESPONSE

2026-03-10 FILING PARTY: BOARD

Download

1035

U.S. District Court for the Eastern District of Texas, Judicial Caseload Profile (“Time-to-Trial Statistics”) Exhibit

2026-02-20 FILING PARTY: PETITIONER

Download

1036

Complaint for Patent Infringement (25-cv-00667) Exhibit

2026-02-20 FILING PARTY: PETITIONER

Download

1038

Prosecution History of U.S. Patent No. 11,606,204 Exhibit

2026-02-20 FILING PARTY: PETITIONER

Download

Samsung Electronics Co., Ltd. et al. vs. Network-1 Technologies, Inc.

Proceeding Overview

Parties & Counsel

Petitioner

Samsung Electronics Co., Ltd. et al.

Represented By

Patent Owner / Respondent

Network-1 Technologies, Inc.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Institution Decision: Deny DECISION

Director Discretionary Decision: Refer RESPONSE

U.S. District Court for the Eastern District of Texas, Judicial Caseload Profile (“Time-to-Trial Statistics”) Exhibit

Complaint for Patent Infringement (25-cv-00667) Exhibit

Prosecution History of U.S. Patent No. 11,606,204 Exhibit

EX2024 - Declaration of Dr. Konstantinos Psounis Exhibit

EX2025 - A Comparative Introduction to 4G and 5G Authentication Exhibit

Patent Owner's Preliminary Response POPR

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

U.S. Patent No. 9,628,981 to Park (“Park”) Exhibit

Chart Comparison of ’864 Patent Claims and ’740 Patent Claims Exhibit

EX2027 - CV of Dr. Konstantinos Psounis Exhibit

EX2026 - '864 Patent Infringement Contentions Exhibit

EX2013 - US Pat Pub No 2015/0121066 Exhibit

EX2012 - US Pat Pub No 2015/0163056 Exhibit

EX2007 - US Pat No 12,207,094 Exhibit

EX2006 - US Pat No 11,233,780 Exhibit

EX2018 - Declaration of William B. Collier, Jr. Exhibit

EX2002 - Docket Control Order Exhibit

EX2011 - Office Action Rejection of Patent Application 14/803,946 dated 9/2/2016 Exhibit

EX2021 - NWO_SAM-00013295 Exhibit

EX2020 - NWO_SAM_00013288 Exhibit

EX2023 - NWO_SAM_00013296 Exhibit

EX2003 - US Pat No 11,606,204 Exhibit

EX2001 - Complaint for Patent Infringement Exhibit

EX2014 - Notice of Allowance for 15/350,963 dated 9/6/2018 Exhibit

EX2019 - Declaration of John Nix Exhibit

EX2022 - NWO_SAM-00013436 Exhibit

EX2010 - Google Patents for 11,233,780 Exhibit

EX2015 - US Pat Pub No 2015/0143125 Exhibit

EX2016 - Defts Invalidity Contentions dated 12/9/2025 Exhibit

EX2017 - US Pat No 8,391,841 Exhibit

Patent Owner's Bifurcated Discretionary Denial Briefing Pursuant to the Director's March 26, 2025 Memorandum RESPONSE

EX2005 - US Pat No 12,166,869 Exhibit

EX2008 - US Pat No 11,916,893 Exhibit

EX2009 - Google Patents for 11,606,204 Exhibit

Notice of Petitioner’s Prior Art Stipulation NOTICE

Notice: Mandatory Notice NOTICE

Notice: Power of Attorney NOTICE

Notice: Notice filing date accorded NOTICE

Claim Mapping Table Exhibit

Reprogrammable SIMs: Technology, Evolution and Implications, Final Report Exhibit

U.S. Patent Publication No. 2004/0221163 (“Jorgensen”) Exhibit

U.S. Patent No. 8,127,142 (“Cuppett”) Exhibit

U.S. Patent Publication No. 2009/0323967 (“Pierce”) Exhibit

PCT Patent Publication No. WO2008/005162 (“Wang”) Exhibit

U.S. Patent Publication No. 2014/0219443 (“Brainis”) Exhibit

U.S. Patent Publication No. 2010/0174907 (“Semple”) Exhibit

Samsung Electronics America, Inc.’s Power of Attorney NOTICE

U.S. Patent Publication No. 2007/0083766 (“Farnham”) Exhibit

U.S. Patent No. 9,210,138 (“Nakhjiri”) Exhibit

Prosecution History of U.S. Patent No. 12,166,869 Exhibit

Petition for Inter Partes Review of U.S. Patent No. 11,973,864 PETITION

Curriculum Vitae of Dr. Christina Popper Exhibit

U.S. Patent Publication No. 2014/0024343 (“Bradley”) Exhibit

U.S. Patent Publication No. 2013/0012168 (“Rajadurai”) Exhibit

Prosecution History of the ’864 Patent Exhibit

U.S. Patent Publication No. 2010/0135491 (“Bhuyan”) Exhibit

U.S. Patent Publication No. 2012/0008775 (“Natarajan”) Exhibit

U.S. Patent Publication No. 2013/0301828 (“Gouget”) Exhibit

Standards for Efficient Cryptography Exhibit

Protocols for Authentication and Key Establishment Exhibit

U.S. Patent No. 11,973,864 (“the ’864 Patent”) Exhibit

Samsung Electronics Co., Ltd.’s Power of Attorney NOTICE

Declaration of Dr. Christina Popper Exhibit