Taiwan Semiconductor Manufacturing Company Ltd. vs. Marlin Semiconductor Limited et al.

Explore the PTAB proceeding IPR2026-00058 filed by Taiwan Semiconductor Manufacturing Company Ltd. on 2025-10-27. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00058

Filing Date

2025-10-27

Accorded Filing Date

2025-10-27

Institution Decision Date

2026-02-18

Last Modified Date

2026-04-16

Proceeding Type

IPR

Termination Date

2026-02-18

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

Taiwan Semiconductor Manufacturing Company Ltd.

Represented By

Lin, Haixiaet al

Patent Owner / Respondent

Marlin Semiconductor Limited et al.

Represented By

Meunier, Williamet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2800 - Semiconductors, Electrical & Optical Systems

Patent Information

1 Patent Involved

Respondent Application Number 11399827

Respondent Patent Number 7288822

External Links

Espacenet

Google Patents

Respondent Inventor Shyh-Fann Ting et al

Respondent Tech Center TC 2800 - Semiconductors, Electrical & Optical Systems

Address and Attorney/Agent Information

2 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name J.C. Patents, Inc.

Customer Number —

Address Suite 250, 4 Venture, Irvine, CA, 92618, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
46863	Belinda Lee	949-396-0800
43330	Jiawei Huang	949-660-0761

Proceeding Documents

Notice: refund approved NOTICE

2026-04-16 FILING PARTY: BOARD

Download

Petitioner's Request for Refund OTHER

2026-04-14 FILING PARTY: PETITIONER

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Director Discretionary Decision: Deny RESPONSE

2026-02-18 FILING PARTY: BOARD

Download

1031

TSMC, 16/12nm Technology (cap. Jan. 28, 2026) Exhibit

2026-01-29 FILING PARTY: PETITIONER

Download

1042

TSMC’s Resurgence, Published June 11, 2025 Exhibit

2026-01-29 FILING PARTY: PETITIONER

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Taiwan Semiconductor Manufacturing Company Ltd. vs. Marlin Semiconductor Limited et al.

Proceeding Overview

Parties & Counsel

Petitioner

Taiwan Semiconductor Manufacturing Company Ltd.

Represented By

Patent Owner / Respondent

Marlin Semiconductor Limited et al.

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

Director Discretionary Decision: Deny RESPONSE

TSMC, 16/12nm Technology (cap. Jan. 28, 2026) Exhibit

TSMC’s Resurgence, Published June 11, 2025 Exhibit

Patent Owner's Preliminary Response POPR

Microchip USA, Published July 16, 2025 Exhibit

He, Published Sept. 18, 2024 Exhibit

U.S. Patent No. 10,468,530 B2 to Wang et al. Exhibit

Docket Navigator Case Search, UMC Litigation Docket (cap. Jan. 28, 2026) Exhibit

Ex. 2002 Exhibit

Klearman, Nov. 20, 2024 Exhibit

The White House, Published Mar. 3, 2025 Exhibit

Excerpt of TSMC Annual Report 2024 Exhibit

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

Nasdaq - This 1 Number May Ensure TSMC’s Market Dominance (cap. Jan. 28, 2026) Exhibit

USPTO Assignment Data for USP 7,288,822 Exhibit

CNBC, Published Apr. 29, 2025 Exhibit

Search Results from USPTO Public Patent Search (cap. Jan. 28, 2026) Exhibit

The White House, Published Jan. 23, 2025 Exhibit

Taipei Times, Published Jan. 7, 2026 Exhibit

Ex. 2003 Joseph C. McAlexander III - CV Exhibit

O’Brien, Trump on China Putting - America First Exhibit

Case No. WDTX-1-25-cv-00215, Docket Report, Docket Navigator (cap. Jan. 28, 2026) Exhibit

Ansys, Published Apr. 23, 2025 Exhibit

TSMC-Cadence Press Release, Published Apr. 24, 2025 Exhibit

Patent Assignment for USP 7,288,822, Reel and Frame No. 56991/0292 Exhibit

Ex. 2001 IPR2026-00058 '822 McAlexander Declaration Exhibit

U.S. Patent No. 12,446,255 B2 to Wang et al. Exhibit

Docket Navigator Case Search of USP 7,288,822 (cap. Jan. 28, 2026) Exhibit

TweakTown, Published Nov. 9, 2025 Exhibit

Shilov, Finance – tom’sHardware, Published Nov. 8, 2024 Exhibit

Website: Ranked: Seminconductor Foundries by Revenue Share (wvvw.visualcapitalist.com/ranked-semiconductor-foundries-byrevenue-share/) Exhibit

Website: Foundries to Grow Faster than Integrated Circuits in 2016 (https://marketrealist.com/2015/12/foundries-grow-faster-integratedcircuits-2016/) Exhibit

Patent Owner's Request for Discretionary Denial of Institution RESPONSE

Declaration of Paul Ahern Regarding Patent Owner's Request for Discretionary Denial of Institution Exhibit

Website: US Patent No. 7,288,822 B1 — Semiconductor Structure And Fabricating Method Thereof — Google Patents https://patents.google.com/patent/US7288822B1/en?oq=7288822 Exhibit

Notice: Mandatory Notice NOTICE

Notice: Power of Attorney NOTICE

Notice: Notice filing date accorded NOTICE

Murthy, U.S. Patent No. 6,949,482 B2 Exhibit

Koontz, U.S. Patent Appl. Pub. No. 2006/0134873 Exhibit

Plummer, Silicon VLSI Technology: Fundamentals, Practice and Modeling Exhibit

Bai, Technical Digest of the 2004 IEEE International Electron Devices Exhibit

Petitioner's Power of Attorney NOTICE

Sze, Physics of Semiconductor Devices (2d ed. 1981) (excerpted) Exhibit

Sun, Journal of Applied Physics, (May 2007) Exhibit

Zhang, Critical Reviews in Solid-State Materials Sciences (2003) Exhibit

Murthy,U.S. Patent No. 7,195,985 Exhibit

Kim, U.S. Patent Appl. Pub. No. 2005/0266631 Exhibit

Prosecution History of the ’822 Patent Exhibit

Samoilov, U.S. Patent Appl. Pub. No. 2005/0079692 Exhibit

Dismukes, Journal of Physical Chemistry, (Oct. 1964) Exhibit

Richter, Proceedings of the 1996 CAS International Semiconductor Conference Exhibit

U.S. Patent No. 7,288,822 Exhibit

Fee Authorization OTHER

Zhu, U.S. Patent No. 7,288,443 B2 Exhibit

Declaration of Dr. Jack Lee Exhibit

Orlowski, U.S. Patent No. 7,238,580 Exhibit

Cook, U.S. Patent Appl. Pub. No. 2007/0238236 Exhibit

Petition: as filed PETITION

Quirk, Semiconductor Manufacturing Technology (2001) (excerpted) Exhibit

Thompson, IEEE Electron Device Letters (Apr. 2004) Exhibit

Lochtefeld, U.S. Patent Appl. Pub. No. 2004/0115916 Exhibit

Sridhar, U.S. Patent Appl. Pub. No. 2005/0090082 Exhibit