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

Explore the PTAB proceeding IPR2025-01316 filed by Samsung Electronics Co., Ltd. et al. on 2025-07-17. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01316

Filing Date

2025-07-17

Accorded Filing Date

2025-07-17

Institution Decision Date

2026-01-09

Last Modified Date

2026-02-10

Proceeding Type

IPR

Termination Date

2026-01-09

Trial Status

Institution Denied

Parties & Counsel

Petitioner

Samsung Electronics Co., Ltd. et al.

Represented By

Tamburo, Salvatoreet al

Patent Owner / Respondent

Maxell, LTD.

Represented By

Pluta, Robertet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2600 - Communications

Patent Information

1 Patent Involved

Respondent Application Number 16576079

Respondent Patent Number 10812646

External Links

Espacenet

Google Patents

Respondent Inventor Nobuo MASUOKA et al

Respondent Tech Center TC 2600 - Communications

Address and Attorney/Agent Information

27 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name McDermott Will & Schulte LLP

Customer Number 20277

Address 500 NORTH CAPITOL STREET, N.W., The McDermott Building, WASHINGTON, DC, 20001, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
28553	Paul Devinsky	202-756-8369
33738	Kevin Meek	512--32-2-5471
38563	Judy Mohr	650-815-7630
44981	Brian Oaks	512-726-2574
46393	Jiewen Davis	713-374-1692
47052	Margaret Sampson	512-322-2552
52441	Peter Brunovskis	202-662-2782
57620	Brian Malkin	202-756-8045
60671	Amol Parikh	312-372-2000
61390	Gaylon Hollis	404-260-8535
61861	Ahsan Shaikh	949-757-6304
63110	Alexander Ott	202-756-8496
65783	April Weisbruch	202-346-4306
67009	Ryan Clark	512-322-2670
67088	Syed Fareed	512-322-2658
68591	James Oehler	312-899-7277
69568	Alexandra Cavazos	310-595-3093
69985	Brett Thompsen	512-300-5767
71411	Stephanie Backovic	--
73786	Brennen Baylor	202-756-8763
75381	Nicholas Franich	310-993-6563
76525	Yuhe Liu	202-756-8974
76850	Benjamin Ediger	737-279-8098
77135	Aziz Poonawalla	310-229-9905
78844	Aashish Kapadia	812-298-6488
79126	Alexander Piala	512-298-4558
82240	Tirsaay Ahmed	202-756-8433

Proceeding Documents

Institution Decision: Deny DECISION

2026-01-09 FILING PARTY: BOARD

Download

3001

Ex. 3001 Exhibit

2025-12-01 FILING PARTY: BOARD

Download

Order: Other ORDER

2025-12-01 FILING PARTY: BOARD

Download

Director Discretionary Decision: Refer RESPONSE

2025-12-01 FILING PARTY: BOARD

Download

Patent Owner's Preliminary Sur-Reply in Response to Petition for Inter Partes Review of U.S. Patent No. 10,812,646 OTHER

2025-11-28 FILING PARTY: PATENT OWNER

Download

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

Institution Decision: Deny DECISION

Ex. 3001 Exhibit

Order: Other ORDER

Director Discretionary Decision: Refer RESPONSE

Patent Owner's Preliminary Sur-Reply in Response to Petition for Inter Partes Review of U.S. Patent No. 10,812,646 OTHER

Ex 1044 Maxell’s Infringe Contentions, Appx 9 Exhibit

PETITIONERS’ PRELIMINARY REPLY TO PATENT OWNER’S PRELIMINARY RESPONSE OTHER

Ex 1043 Maxell’s Amend Infringe Contens, Appx 9_REDLINE Exhibit

Letter from Maxell to Samsung (July 7, 2021)_Pt.2 Exhibit

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

Letter from Maxell to Samsung (July 7, 2021)_Pt.3 Exhibit

Patent Owner's Preliminary Response to Petition for Inter Partes Review of U.S. Patent No. 10,812,646 POPR

Order dated July 9, 2025 Exhibit

Letter from Maxell to Samsung (July 7, 2021)_Pt.4 Exhibit

IPR2024-00867, Paper 40 Petitioner’s Resp Exhibit

IPR2024-00717, Paper 31 Petitioner’s Opp Exhibit

Order dated May 2, 2025 Exhibit

Order dated September 18, 2025 Exhibit

Letter from Maxell to Samsung (July 7, 2021)_Pt.1 Exhibit

Order dated March 21, 2025 Exhibit

IPR2024-00735, Paper 41 Opp to Mtn Exhibit

IPR2024-00828, Paper 42 Resp Exhibit

Infringement Contentions dated August 12, 2025 Exhibit

IPR2024-00828, Paper 50 Order Denying PO Mtn Exhibit

IPR2024-00828, Paper 47 Sur-reply Exhibit

Complaint dated September 7, 2023 Exhibit

Motion to Stay Pending IPR Exhibit

Ex. 2007 Follow-up Notice Letter to Samsung (April 21, 2025) Exhibit

Ex. 2001 Notice Letter to Samsung (July 7, 2021) 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. 2009 Law360 Article, “Maxell Scores $43M EDTX Jury Win In ZTE Patent Trial” Exhibit

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

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

Ex. 2008 Law360 Article, “Maxell Settles Patent Suit Against Apple Over Mobile Tech” 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. 2011 Hudson Institute Article, “Google’s Loss to Sonos Settles It, Big Tech Has an IP Piracy Problem” Exhibit

Ex. 2012 PatentRenewal.com Article, “which-companies-hold-the-most-patents-in-the-world” 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. 2002 Follow-up Notice Letter to Samsung (December 29, 2021) Exhibit

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

Petitioners' Updated Exhibit List NOTICE

Petitioners' Stipulation Exhibit

Notice: Power of Attorney NOTICE

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

Notice: Notice filing date accorded NOTICE

Miyazawa - US20140019994A1 Exhibit

2003 - Samsung SCH-i600 User Guide Exhibit

Sharif-Ahmadi - US10375343 Exhibit

FH for US 10812646 Exhibit

Guihot - US9454251 Exhibit

PETITION FOR IPR OF U.S. PATENT NO. U.S. 10,812,646 PETITION

Esaka - US9736217 Exhibit

2007 Handbook - Understanding Single Handed Use Exhibit

Park - US20120129496A1 Exhibit

Bederson Declaration Exhibit

2003 - Universal Principles of Design (Ockham's Razor) Exhibit

SAMSUNG ELECTRONICS CO., LTD.’S POWER OF ATTORNEY NOTICE

1998 - Shneiderman - Golden Rules Exhibit

2005 - CHI - AppLens LaunchTile Exhibit

Bandyopadhyay - US9521247 Exhibit

SAMSUNG ELECTRONICS AMERICA, INC.’S POWER OF ATTORNEY NOTICE

2004 - TOCHI - DateLens Exhibit

US10812646 Exhibit