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Taiwan Semiconductor Manufacturing Company Ltd. - IPR2026-00261

Explore the PTAB proceeding IPR2026-00261 filed by Taiwan Semiconductor Manufacturing Company Ltd. on Feb 13, 2026. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Case Details

Proceeding Number: IPR2026-00261
Filing Date: Feb 13, 2026
Petitioner: Taiwan Semiconductor Manufacturing Company Ltd.
Status: Petition filed
Respondent Application Number: 12198128
Respondent Tech Center: 2800
Respondent Patent Number: 7888195

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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.

Show Exhibit Documents

Document Name	Filing Date	Category	Filing Party
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Notice: Mandatory Notice	Feb 18, 2026	PAPER	PATENT OWNER
Notice: Power of Attorney	Feb 18, 2026	PAPER	PATENT OWNER
U.S. Patent No. 7,888,195	Feb 13, 2026	EXHIBIT	PETITIONER
Excerpts from the Prosecution History of the ’195 Patent	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. 2007/0138559 (“Bohr”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. 2005/0233527 (“Brask”)	Feb 13, 2026	EXHIBIT	PETITIONER
Amazawa et al.	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. 2009/0242997 (“Yu”)	Feb 13, 2026	EXHIBIT	PETITIONER
Wang et al., Chemical Mechanical Polishing for Selective CVD-W	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. 2009/0315124 (“Chen”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. 2006/0180851 (“Lee”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pat. No. 6,573,134 (“Ma”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pat. No. 7,390,709 (“Doczy ’709”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. 2006/0278934 (“Nagahama”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pat. No. 7,084,038 (“Doczy ’038”)	Feb 13, 2026	EXHIBIT	PETITIONER
Mistry et al.	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pat. No. 7,211,869 (“Chan”)	Feb 13, 2026	EXHIBIT	PETITIONER
Printout of USPTO Class Schedule for Class 438	Feb 13, 2026	EXHIBIT	PETITIONER
Declaration of June Ann Munford	Feb 13, 2026	EXHIBIT	PETITIONER
European Patent No. 2112687 (“Chang”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. 2008/0096383 (“Tigelaar”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Patent No. 6,225,168 (“Gardner”)	Feb 13, 2026	EXHIBIT	PETITIONER
Devireddy et al.	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. 2006/0065939 (“Doczy ’939”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Patent No. 6,559,051 (“Buynoski”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. No. 2005/0051854 (“Cabral”)	Feb 13, 2026	EXHIBIT	PETITIONER
A. Chatterjee et al.	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Patent No. 7,176,090 (“Brask ’090”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. No. 2007/0037343 (“Colombo”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. No. 2008/0265322 (“Lin”)	Feb 13, 2026	EXHIBIT	PETITIONER
U.S. Pub. No. 7,208,361 (“Shah”)	Feb 13, 2026	EXHIBIT	PETITIONER
Petitioner's Power of Attorney	Feb 13, 2026	PAPER	PETITIONER
Petition: as filed	Feb 13, 2026	PAPER	PETITIONER
Declaration of Jack Lee, Ph.D.	Feb 13, 2026	EXHIBIT	PETITIONER
Hofstein et al.	Feb 13, 2026	EXHIBIT	PETITIONER