Taiwan Semiconductor Manufacturing Company Ltd. v. Marlin Semiconductor Ltd. et al. - IPR2026-00220

Explore the PTAB proceeding IPR2026-00220 filed by Taiwan Semiconductor Manufacturing Company Ltd. against Marlin Semiconductor Ltd. et al. on Jan 16, 2026. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Case Details

Proceeding Number
IPR2026-00220
Filing Date
Jan 16, 2026
Petitioner
Taiwan Semiconductor Manufacturing Company Ltd.
Respondent
Marlin Semiconductor Ltd. et al.
Status
Pending
Respondent Application Number
12572498
Respondent Tech Center
2800
Respondent Patent Number
8076735

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Proceeding Documents

The table below shows documents filed in the case, listing each document name, filing date, document type, and filing party. Tracking these filings indicates the activity of the parties involved in the case, and the types of documents filed can provide insights into the legal strategies being employed.

Document NameFiling DateCategoryFiling Party

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Patent Owner's Preliminary Response

Apr 22, 2026PAPERPATENT OWNER

Ex 2001 2026-04-22 IPR2026-00220 '735 McAlexander Declaration

Apr 22, 2026EXHIBITPATENT OWNER

Ex 2002 Peter Van Zant Microchip Fabrication 4th Edition

Apr 22, 2026EXHIBITPATENT OWNER

Ex 2003 CV of Joseph McAlexander, III

Apr 22, 2026EXHIBITPATENT OWNER

Patent Assignment Abstract of Title for the ’735 Patent

Apr 22, 2026EXHIBITPETITIONER

Taiwan Semiconductor Manufacturing Company Ltd., 7nm Technology

Apr 22, 2026EXHIBITPETITIONER

Jeremy Bowman, Nasdaq, This 1 Number May Ensure TSMC’s Market Dominance, The Motley Fool

Apr 22, 2026EXHIBITPETITIONER

“Another Historic Investment Secured Under President Trump,” The White House, Published Mar. 3, 2025

Apr 22, 2026EXHIBITPETITIONER

“IPValue Affiliate Licenses Samsung to Marlin Semiconductor Patent Portfolio" IP Value

Apr 22, 2026EXHIBITPETITIONER

“IPValue Affiliate Licenses Samsung to Marlin Semiconductor Patent Portfolio" BusinessWire

Apr 22, 2026EXHIBITPETITIONER

“CNBC Transcript: United States Commerce Secretary How-ard Lutnick Speaks with CNBC’s Brian Sullivan on ‘The Ex-change’ Today,” CNBC, Published Apr. 29, 2025

Apr 22, 2026EXHIBITPETITIONER

“Removing Barriers to American Leadership in Artificial Intel-ligence,” The White House, Published Jan. 23, 2025, availa-ble at https://www.whitehouse.gov/presidentialactions/2025/01/removing-barriers-to-american-leadership-inartificial-intelligence/ (last accessed Feb. 25, 2026)

Apr 22, 2026EXHIBITPETITIONER

TSMC Annual Report 2024 (Excerpts), available at https://investor.tsmc.com/static/annualReports/2024/english/ebook/i ndex.html (last accessed Feb. 25, 2026)

Apr 22, 2026EXHIBITPETITIONER

“Ansys Strengthens Collaboration with TSMC on Advanced Node Processes Certification and 3D-IC Multiphysics Design Solutions.,” Published Apr. 23, 2025, available at https://investors.ansys.com/news-releases/news-releasedetails/ansys-strengthens-collaboration-tsmc-advanced-nodeprocesses (last accessed Feb. 25, 2026)

Apr 22, 2026EXHIBITPETITIONER

TSMC-Cadence Press Release, Published Apr. 24, 2025, available at https://www.cadence.com/en_US/home/company/newsroom/pressreleases/pr/2025/cadence-and-tsmc-advance-ai-and-3d-ic-chipdesign-with-certified.html (last accessed Feb. 25, 2026)

Apr 22, 2026EXHIBITPETITIONER

J. Klearman, “Decoding TSMC’s Contribution to the AI and 5G Ecosystem,” Nov. 20, 2024, available at https://graniteshares.com/institutional/us/en-us/research/decodingtsmc-s-contribution-to-the-ai-and-5g-ecosystem/ (last accessed Feb. 25, 2026)

Apr 22, 2026EXHIBITPETITIONER

R. O’Brien, “Trump on China – Putting America First,” available at https://trumpwhitehouse.archives.gov/wpcontent/uploads/2020/11/Trump-on-China-Putting-AmericaFirst.pdf (last accessed Feb. 25, 2026)

Apr 22, 2026EXHIBITPETITIONER

Certain Foreign-Fabricated Semiconductor Devices, Products Containing the Same, and Components Thereof, Inv. No. 337-TA1443, Doc ID 843707 (Feb. 18, 2025) (Complaint)

Apr 22, 2026EXHIBITPETITIONER

U.S. Patent No. 10,453,842 (“Ching”)

Apr 22, 2026EXHIBITPETITIONER

U.S. Patent No. 10,811,320 (“Huang”)

Apr 22, 2026EXHIBITPETITIONER

Director John A. Squires, Memorandum on Additional Discretionary Institution Considerations – U.S. Manufacturing and Small Business Use of AIA Proceedings (March 11, 2026)

Apr 22, 2026EXHIBITPETITIONER

TSMC Arizona Economic Impact, available at https://www.tsmc.com/static/abouttsmcaz/index.htm (last accessed April 12, 2026)

Apr 22, 2026EXHIBITPETITIONER

Greater Phoenix Semiconductor Ecosystem February 2025 Report, available at https://www.gpec.org/industries-operations/industries-in-greater-phoenix/semiconductors (last accessed April 12, 2026)

Apr 22, 2026EXHIBITPETITIONER

USPC Class 438 Definition

Apr 22, 2026EXHIBITPETITIONER

USPC Class 257 Definition

Apr 22, 2026EXHIBITPETITIONER

Russ Wiles, US Commerce Secretary Visits TSMC Complex in Phoenix as Work on Third Fab Starts, Arizona Republic (April 30, 2025)

Apr 22, 2026EXHIBITPETITIONER

VectorCapital.com About Webpage, available at https://www.vectorcapital.com/about (last accessed April 22, 2026)

Apr 22, 2026EXHIBITPETITIONER

VectorCapital.com IPValue Management Investment Case Study Webpage, available at https://www.vectorcapital.com/investments/case-study/ipvalue-management (last accessed April 22, 2026)

Apr 22, 2026EXHIBITPETITIONER

IPValue.com Portfolios Webpage, available at https://www.ipvalue.com/portfolios

Apr 22, 2026EXHIBITPETITIONER

Petitioner's Opposition to Patent Owner's Request for Discretionary Denial

Apr 22, 2026PAPERPETITIONER

Patent Owner's Request for Discretionary Denial of Institution

Mar 23, 2026PAPERPATENT OWNER

Ex. 2101 Foundries to Grow Faster than Integrated Circuits in 2016

Mar 23, 2026EXHIBITPATENT OWNER

Ex. 2102 Ranked_Semiconductor Foundries by Revenue Share

Mar 23, 2026EXHIBITPATENT OWNER

Ex. 2103 US8076735B2 - Semiconductor device with trench of various widths - Google Patents

Mar 23, 2026EXHIBITPATENT OWNER

Ex. 2104 2026-03-23 IPR2026-00220 '735 Ahern Declaration (MSL executed)

Mar 23, 2026EXHIBITPATENT OWNER

Ex. 2105 Memo fr J. Squires to all PTAB Users (Mar. 11, 2026)

Mar 23, 2026EXHIBITPATENT OWNER

Ex. 2106 chips-design-manufacturing-fact-sheet

Mar 23, 2026EXHIBITPATENT OWNER

Ex. 2107 US Semiconductor Manufacturing _ CHIPS and Science Act _ Intel®

Mar 23, 2026EXHIBITPATENT OWNER

Ex. 2108 samsung-factsheet-chips-122024-final

Mar 23, 2026EXHIBITPATENT OWNER

Ex. 2109 Samsung CHIPS Act Grant Brings Its Leading Edge Plus R&D To Texas

Mar 23, 2026EXHIBITPATENT OWNER

Notice: Mandatory Notice

Feb 12, 2026PAPERPATENT OWNER

Notice: Power of Attorney

Feb 12, 2026PAPERPATENT OWNER

Notice: Notice filing date accorded

Jan 22, 2026PAPERBOARD

U.S. Patent No. 8,076,735 to Lin (“the ’735 Patent”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Pub. No. 2010/0044783 (“Chuang”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Pub. No. 2008/0265322 (“Lin”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Pub. No. 2006/0011994 (“Hong Lin”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Patent No. 7,208,361 (“Shah”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Pub. No. 2010/0065926 (“Yeh”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Pub. No. 2005/0051854 (“Cabral”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Patent No. 7,176,090 (“Brask”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Pub. No. 2007/0037343 (“Colombo”)

Jan 16, 2026EXHIBITPETITIONER

Chatterjee 1998

Jan 16, 2026EXHIBITPETITIONER

Hofstein 1963

Jan 16, 2026EXHIBITPETITIONER

U.S. Patent No. 8,288,262 (“Lin-262”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Pub. No. 2010/0006955 (“Takimoto”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Patent No. 6,348,385 (“Cha“)

Jan 16, 2026EXHIBITPETITIONER

U.S. Patent No. 6,559,051 (“Buynoski”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Patent No. 6,225,168 (“Gardner”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Pub. No. 2009/0218603 (“Brask-603”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Patent No. 9,166,022 B2 (“Xu”)

Jan 16, 2026EXHIBITPETITIONER

Auth 2008

Jan 16, 2026EXHIBITPETITIONER

Mayuzumi 2009

Jan 16, 2026EXHIBITPETITIONER

U.S. Patent No. 6,797,572 (“Jeon”)

Jan 16, 2026EXHIBITPETITIONER

U.S. Pub. No. 2006/0115937 (“Barnett”)

Jan 16, 2026EXHIBITPETITIONER

E.P. Patent No. 1,637,626 (“Ji”)

Jan 16, 2026EXHIBITPETITIONER

Excerpts from the Prosecution History of the ’735 Patent

Jan 16, 2026EXHIBITPETITIONER

Excerpts from the Prosecution History of U.S. Patent No. 8,288,262

Jan 16, 2026EXHIBITPETITIONER

U.S. Patent No. 6,444,592 (“Ballantine”)

Jan 16, 2026EXHIBITPETITIONER

Notice: Power of Attorney

Jan 16, 2026PAPERPETITIONER

Expert Declaration and Curriculum Vitae of Dr. Jack Lee, Ph.D.

Jan 16, 2026EXHIBITPETITIONER

Petition: as filed

Jan 16, 2026PAPERPETITIONER