Samsung Electronics Co. Ltd. et al. vs. Maxell, Ltd.

Explore the PTAB proceeding IPR2025-01310 filed by Samsung Electronics Co. Ltd. et al. on 2025-10-13. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01310

Filing Date

2025-10-13

Accorded Filing Date

2025-10-13

Institution Decision Date

2026-03-23

Last Modified Date

2026-09-10

Proceeding Type

IPR

Termination Date

—

Trial Status

Trial Instituted

Parties & Counsel

Petitioner

Samsung Electronics Co. Ltd. et al.

Represented By

Limbach, Alanet al

Patent Owner / Respondent

Maxell, Ltd.

Represented By

Pluta, Robertet 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 18113545

Respondent Patent Number 12160681

External Links

Espacenet

Google Patents

Respondent Inventor Nobuaki KABUTO et al

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

Address and Attorney/Agent Information

6 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Rimon PC - MWE

Customer Number 196212

Address 8484 Westpark Drive, Suite 810, McLean, VA, 22102, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
36139	Michael Fogarty	202-756-8372
42645	Robert Hayden	650-461-4433
60453	Tomoki Tanida	571-765-7718
69536	Takashi Saito	571-765-7717
70437	Yoshiko Ito	959-757-6359
77541	Yanyan Wang	202-594-4029

Proceeding Documents

Patent Owner's Updated Mandatory Notices Under 37 C.F.R. 42.8 NOTICE

2026-09-10 FILING PARTY: PATENT OWNER

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PETITIONERS’ NOTICE OF CROSS-EXAMINATION OF DR. PACHAMANOV NOTICE

2026-08-21 FILING PARTY: PETITIONER

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Panel Change Order ORDER

2026-07-10 FILING PARTY: BOARD

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Patent Owner’s Response to Petition for Inter Partes Review of U.S. Patent No. 12,160,681 RESPONSE

2026-06-15 FILING PARTY: PATENT OWNER

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2018

Ex. 2018 Declaration of Radostin Pachamanov, PH.D. Exhibit

2026-06-15 FILING PARTY: PATENT OWNER

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Samsung Electronics Co. Ltd. et al. vs. Maxell, Ltd.

Proceeding Overview

Parties & Counsel

Petitioner

Samsung Electronics Co. Ltd. et al.

Represented By

Patent Owner / Respondent

Maxell, Ltd.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Patent Owner's Updated Mandatory Notices Under 37 C.F.R. 42.8 NOTICE

PETITIONERS’ NOTICE OF CROSS-EXAMINATION OF DR. PACHAMANOV NOTICE

Panel Change Order ORDER

Patent Owner’s Response to Petition for Inter Partes Review of U.S. Patent No. 12,160,681 RESPONSE

Ex. 2018 Declaration of Radostin Pachamanov, PH.D. Exhibit

Ex. 2019 Deposition of Robert Stevenson, PH.D. Exhibit

Patent Owner's Updated Mandatory Notices Under 37 C.F.R. 42.8 NOTICE

Patent Owner's Updated Power of Attorney NOTICE

ORDER Conditionally Granting Patent Owner’s Motions for Pro Hac Vice Admission of Tariq Javed 37 C.F.R. § 42.10 ORDER

PETITIONERS’ UPDATED EXHIBIT LIST OTHER

EX 1030 2025-09 Stevenson CV Exhibit

Patent Owner's Unopposed Motion for Pro Hac Vice Admission of Tariq Javed MOTION

Ex. 2017 - Declaration of T. Javed Exhibit

Patent Owner's Notice of Cross-Examination of Robert Stevenson NOTICE

SCHEDULING ORDER ORDER

Institution Decision: Grant DECISION

Director Discretionary Decision: Refer RESPONSE

EX1020 IPR2024-00717, Paper 33 Exhibit

EX1012 Order (Jul. 9, 2025) Exhibit

EX1019 IPR2024-00867, Paper 40 Exhibit

EX1014 Order (Sept. 18, 2025) (public version) Exhibit

EX1013 Order (May 2, 2025) (public version) Exhibit

EX1023 IPR2024-00828, Paper 50 Exhibit

EX1024 IPR2024-00735, Paper 41 Exhibit

PETITIONERS’ OPPOSITION TO PATENT OWNER’S REQUEST FOR DISCRETIONARY DENIAL RESPONSE

EX1028 Samsung's MTS (Oct. 24, 2025) Exhibit

EX1029 Order focusing claims (Aug. 18, 2025) Exhibit

EX1026 718 patent Exhibit

EX1027 Order-motion to stay (Dec. 15, 2025) Exhibit

EX1022 IPR2024-00828, Paper 47 Exhibit

EX1021 IPR2024-00828, Paper 42 Exhibit

EX1018 Letter (Dec. 29, 2021) Exhibit

EX1010 Complaint (Sept. 7, 2023) Exhibit

Patent Owner's Preliminary Response to Petition for Inter Partes Review of U.S. Patent No. 12,160,681 POPR

Ex. 2016 (Defendants' PR 4-2 Disclosures) Exhibit

EX1016 Letter (Jul. 7, 2021) Exhibit

EX1025 Maxell's infring conts cover pldg Exhibit

EX1011 Order (Mar. 21, 2025) Exhibit

Ex. 2003 Docket Navigator Time to Trial Statistics for the Eastern District of Texas Exhibit

Ex. 2015 Petitioner’s Invalidity Contentions (October 28, 2025) Exhibit

Ex. 2009 Law360 Article, “Maxell Scores $43M EDTX Jury Win in ZTE Patent Trial” Exhibit

Ex. 2014 Follow-up Notice Letter to Samsung (November 28, 2024) Exhibit

Ex. 2002 Follow-up Notice Letter to Samsung (December 29, 2021) Exhibit

Ex. 2007 Follow-up Notice Letter to Samsung (September 8, 2023) Exhibit

Ex. 2011 Hudson Institute Article, “Google’s Loss to Sonos Settles It, Big Tech Has an IP Piracy Problem” Exhibit

Ex. 2005 Jury Trial Transcript, Vol. 4, Maxell, Ltd. v. Samsung Elecs. Co., Ltd., No. 5:23-cv-00092-RWS (E.D. Tex.) Exhibit

Ex. 2008 Law360 Article, “Maxell Settles Patent Suit Against Apple Over Mobile Tech” Exhibit

Ex. 2001 Notice Letter to Samsung (July 7, 2021) Exhibit

Brief in Support of Patent Owner's Request for Discretionary Denial RESPONSE

Ex. 2004 Docket Control Order, Maxell, Ltd. v. Samsung Elecs. Co., Ltd., No. 5:25-cv-00052-RWS (E.D. Tex.) Exhibit

Ex. 2010 Law360 Article, “Maxell, Huawei Reach Terms to End Smartphone Patent Suit” Exhibit

Ex. 2012 PatentRenewal.com Article, “which-companies-hold-the-most-patents-in-the-wor Exhibit

Ex. 2006 Complaint, Maxell, Ltd. v. Samsung Elecs. Co., Ltd., No. 5:25-cv-00052-RWS (E.D. Tex.) Exhibit

Ex. 2013 Motion for Partial Summary Judgment of Validity Based on Sotera Stipulations, Maxell, Ltd. v. Samsung Elecs. Co., Ltd., No. 5:23-cv-00092-RWS (E.D. Tex.) Exhibit

Ex. 1009 Petitioners' Stipulation Exhibit

PETITIONERS’ UPDATED EXHIBIT LIST OTHER

Ex 3001 Exhibit

Order: Other ORDER

Patent Owner's Mandatory Notices Under 37 C.F.R.§ 42.8 NOTICE

Notice: Power of Attorney NOTICE

Notice: Notice filing date accorded NOTICE

U.S. Patent Publication 2007/0222779 (“Fastert”) Exhibit

File History of U.S. Patent No. 12,160,681 Exhibit

PETITION FOR INTER PARTES REVIEW OF U.S. PATENT NO. U.S. 12,160,681 PETITION

U.S. Patent Publication 2007/0242062 (“Guo”) Exhibit