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

Explore the PTAB proceeding IPR2026-00115 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

IPR2026-00115

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 17647812

Respondent Patent Number 11606204

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

1036

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

2026-02-20 FILING PARTY: PETITIONER

Download

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

2026-02-20 FILING PARTY: PETITIONER

Download

2027

EX2027 - CV of Dr. Konstantinos Psounis Exhibit

2026-02-20 FILING PARTY: PATENT OWNER

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

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

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

EX2027 - CV of Dr. Konstantinos Psounis Exhibit

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

EX2026 - '204 Patent Infringement Contentions Exhibit

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

Chart Comparison of ’204 Patent Claims and ’740 Patent Claims Exhibit

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

Patent Owner's Preliminary Response POPR

EX2024 - Declaration of Dr. Konstantinos Psounis Exhibit

EX2017- US Pat No 8,391,841 Exhibit

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

EX2019 - Declaration of John Nix Exhibit

EX2015 - US Pat Pub No 2015/0143125 Exhibit

EX2002 - Docket Control Order Exhibit

EX2022 - NWO_SAM-00013436 Exhibit

EX2009 - Google Patents of 11,606,204 Exhibit

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

EX2004 - US Pat No 11,973,864 Exhibit

EX2001 - Complaint for Patent Infringement Exhibit

EX2020 - NWO_SAM_00013288 Exhibit

EX2007 - US Pat No 12,207,094 Exhibit

EX2012-US Pat Pub No 2015/0163056 Exhibit

EX2013 - US Pat Pub No 2015/0121066 Exhibit

EX2021 - NWO_SAM-00013295 Exhibit

EX2005 - US Pat No 12,166,869 Exhibit

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

EX2008 - US Pat No 11,916,893 Exhibit

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

EX2010 - Google Patents of 11,233,780 Exhibit

EX2023 - NWO_SAM_00013296 Exhibit

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

EX2006 - US Pat No 11,233,780 Exhibit

Notice of Petitioner’s Prior Art Stipulation NOTICE

Notice: Power of Attorney NOTICE

Notice: Mandatory Notice NOTICE

Notice: Notice filing date accorded NOTICE

U.S. Patent Publication No. 2009/0068985 (“Nguyen”) Exhibit

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

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

U.S. Patent Publication No. 2012/0300934 (“Ala-Laurila”) Exhibit

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

Declaration of Dr. Christina Popper Exhibit

Standards for Efficient Cryptography Exhibit

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

Prosecution History of the ’204 Patent Exhibit

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

U.S. Patent No. 11,606,204 (“the ’204 Patent") Exhibit

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

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

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

Curriculum Vitae of Dr. Christina Popper Exhibit

Protocols for Authentication and Key Establishment Exhibit

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

Petition for Inter Partes Review of U.S. Patent No. 11,606,204 PETITION

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

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

Claim Mapping Table Exhibit

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

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

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

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

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