Meta Platforms, Inc. vs. SitNet, LLC

Explore the PTAB proceeding IPR2026-00111 filed by Meta Platforms, Inc. on 2025-11-12. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00111

Filing Date

2025-11-12

Accorded Filing Date

2025-11-12

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

Meta Platforms, Inc.

Represented By

Specht, Michaelet al

Patent Owner / Respondent

SitNet, LLC

Represented By

Hecht, Davidet 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 18639859

Respondent Patent Number 12238815

External Links

Espacenet

Google Patents

Respondent Inventor Thomas Cona et al

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

Address and Attorney/Agent Information

40 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name HG Law LLP

Customer Number 1473

Address 75 Broad Street, Suite 510, New York, NY, 10004-3222, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
27794	James Haley Jr	646-973-2502
31069	Jeffrey Ingerman	646-973-2500
43772	Karen Mangasarian	646-973-2514
45715	Firasat Ali	669-213-1072
46109	James Leiz	646-973-2504
47943	Alexander Shvarts	650-681-0772
52652	George Brieger	646-973-2547
53470	Robert Pilaud	503-228-9446
54582	Gregory Lundell	669-213-1065
63933	Brian Gummow	646-973-2500
66139	Jason Ingerman	646-973-2507
67542	Joseph Mcpartland	646-973-2561
67675	Maxim Rapoport	646-973-2511
68977	Andrew Lee	510-304-9211
71318	Kevin Rieffel	646-973-2500
72910	Geneva Lai	669-213-1082
73679	Thomas Trainor	646-973-2520
74501	Jennifer Galela	669-213-1083
74569	Daniel Organ	646-973-2506
75947	Ariel Diamond	646-973-2552
76504	William Ulrich	212-425-5288
76604	Donny Samporna	209-406-3376
77544	Anthony Boiano	646-973-2515
79057	Matthew Minnick	669-213-1078
79869	Mihaela Danca	646-973-2531
80042	Stacey Chung	646-973-2516
80314	Anthony Gee	669-213-1069
80755	Maha Saber	660-213-1063
80996	Gabrielle Prindle	669-213-1074
81758	Giacomo Di Liberto	646-973-2536
82232	Jake Rabinowitz	164-697-32549
82400	Erica Grant	669-213-1070
82464	Marcus Jellen	669-213-1064
82476	Catherine Keough	646-973-2509
82530	Olivia Brock	669-213-1050
82610	Paul Frech	669-213-1081
82671	Angelica Stuczynski	747-200-7043
82766	Priya Sriram	646-973-2523
82967	Anchal Agarwal	669-213-1050
83063	Yee Lau	972-800-4925

Proceeding Documents

Notice: refund approved NOTICE

2026-05-13 FILING PARTY: BOARD

Download

Petitioner's Request for Refund OTHER

2026-05-08 FILING PARTY: PETITIONER

Download

Institution Decision: Deny DECISION

2026-04-28 FILING PARTY: BOARD

Download

Director Discretionary Decision: Refer RESPONSE

2026-03-17 FILING PARTY: BOARD

Download

1055

EX1055 - SitNet II Scheduling Order Exhibit

2026-02-25 FILING PARTY: PETITIONER

Download

Meta Platforms, Inc. vs. SitNet, LLC

Proceeding Overview

Parties & Counsel

Petitioner

Meta Platforms, Inc.

Represented By

Patent Owner / Respondent

SitNet, LLC

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice: refund approved NOTICE

Petitioner's Request for Refund OTHER

Institution Decision: Deny DECISION

Director Discretionary Decision: Refer RESPONSE

EX1055 - SitNet II Scheduling Order Exhibit

EX1052 - IPR2024-00528 Motion to Amend Exhibit

EX1039 - IPR2024-00531 Final Written Decision Exhibit

EX1053 - IPR2024-00529 Motion to Amend Exhibit

EX1043 - U.S. Patent No. 8,332,454 Exhibit

EX1050 - DocketNavigator Report SitNet Exhibit

EX1037 - IPR2024-00528 Order Granting Request for Adverse Judgement Exhibit

EX1041 - IPR2024-00529 Preliminary Guidance Exhibit

EX1045 - IPR2024-00528 Motion for Adverse Judgement Exhibit

EX1047 - U.S. Patent No. 7,711,475 to Cona Exhibit

EX1049 - DocketNavigator Report Resource Consortium Limited Exhibit

EX1044 - U.S. Patent No. 11,470,682 Exhibit

EX1046 - IPR2024-00529 Motion for Adverse Judgement Exhibit

EX1040 - IPR2024-00528 Preliminary Guidance Exhibit

EX1048 - SitNet Provisional Assignment Records Exhibit

EX1038 - IPR2024-00612 Final Written Decision Exhibit

EX1051 - SDNY Motion Success Stay Pending IPR Exhibit

Petitioner's Opposition to Patent Owner's Discretionary Denial Brief RESPONSE

EX1056 - Time to Trial Statistics Exhibit

EX1042 - IPR2024-00530 Preliminary Guidance Exhibit

EX1054 - IPR2024-00530 Motion to Amend Exhibit

Memorandum Exhibit

U.S. Patent No. 8,332,454 (“Cona”) Exhibit

Patent Owner's Preliminary Response POPR

U.S. Patent No. 9,412,136 (“Gertzfield”) Exhibit

Redlined Amended Complaint Exhibit

Complaint Exhibit

Patent Center Continuity Data for Provisional Patent Application No. 60/887,843 Exhibit

U.S. Patent No. 8,069,202 (“Cona”) Exhibit

U.S. Patent Application Publication No. 2007/0282621 Exhibit

Patent Owner's Discretionary Denial Brief RESPONSE

U.S. Patent No. 8,045,455 (“Agronow”) Exhibit

Amended Complaint Exhibit

Prosecution History of U.S. Patent No. 12,336,052 Exhibit

U.S. Patent No. 12,336,052 (“Cona”) Exhibit

Petitioner's Sotera Stipulation OTHER

Notice: Power of Attorney NOTICE

Notice: Mandatory Notice NOTICE

Notice: Notice filing date accorded NOTICE

EX1028 - Subset Dictionary.com Exhibit

EX1020 - Social Networks and Internet Connectivity Effects Exhibit

EX1001 - U.S. Patent No. 12,238,815 Exhibit

EX1004 - Jansen CV Exhibit

EX1030 - Meta Platforms v. SitNet LLC, IPR2024-00529, Paper 33 Exhibit

EX1015 - Social Network Sites Exhibit

Petition for Inter Partes Review PETITION

EX1019 - Adamic & Adar Exhibit

EX1027 - Teens Hang out at MySpace Exhibit

EX1006 - U.S. Publication No. 2005_0033615 (Nguyen) Exhibit

EX1022 - Friendster, Love and Money Exhibit

EX1032 - Claim Construction Order Exhibit

EX1009 - U.S. Publication No. 2006_0270419 (Crowley) Exhibit

EX1002 - Prosecution History of U.S. Patent No. 12,238,815 Exhibit

EX1029 - The Concept and Application of Life Segmentation Exhibit

EX1016 - U.S. Publication No. 2007_0194938 (Mitchell) Exhibit

EX1014 - U.S. Patent No. 8,346,864 (Amidon) Exhibit

EX1003 - Jansen Declaration Exhibit

EX1026 - Social Networking Websites and Teens Exhibit

EX1008 - U.S. Publication No. 2007_0233635 (Burfeind) Exhibit

EX1018 - Social network - Wikipedia Exhibit

EX1036 - Best Computer Science Scientists Exhibit