Status
Determination - Reexamination Ordered
Requester Law Firm
Unknown
Requested By
Third Party
Patent Owner
P.O. Law Firm
Reexam History (21 events)
Mar 11, 2026RXPA..Change in Power of Attorney (May Include Associate POA)
Feb 25, 2026RXPET.Receipt of Petition in a Reexam
Jan 30, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Dec 11, 2025MRXNReexamination Formalities Notice Mailed
Dec 11, 2025MRXNReexamination Formalities Notice Mailed
Dec 11, 2025DOCKCase Docketed to Examiner in GAU
Dec 11, 2025COMPApplication Is Now Complete
Dec 10, 2025RXTTLRPTTitle Report
Dec 10, 2025RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Dec 10, 2025RXNREQFDNotice of reexamination request filing date
Dec 10, 2025RXNREQAUNotice of assignment of reexamination request
Dec 10, 2025PRXRParalegal Reexam Review Complete
Dec 9, 2025RXRLFReExam Litigation Found
Dec 9, 2025RXLITSRReexam Litigation Search Conducted
Dec 9, 2025FTFSFITF set to YES - revise initial setting
Dec 3, 2025RXOSUB.RReexamination requested by third party requester
Dec 3, 2025RXOSUBReceipt of Original Ex Parte Reexam Request
Dec 3, 2025RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
Dec 3, 2025RXC/SRCertificate of Service
Dec 3, 2025RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Dec 3, 2025BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Prosecution, PTAB & CAFC
PTAB Proceedings (IPR, PGR, CBM, DER)
IPR2025-00848IPR — Discretionary Denial
Petitioner
Taiwan Semiconductor Manufacturing Company Limited et al.
Petition Filed
Apr 17, 2025
Institution
Sep 3, 2025
Decision
Sep 3, 2025
Terminated
Sep 3, 2025
Federal Circuit (CAFC)
None found
Terminal Disclaimer
None found
Prosecution History
None found
Maintenance Fees
Grant
Apr 24, 2018
3.5-yr
Oct 24, 2021
Paid Oct 13, 2021
7.5-yr
Oct 24, 2025
Paid Oct 16, 2025
11.5-yr
Oct 24, 2029
Expiry
Jul 27, 2037
Entity Status
Large Entity
Expires
Jul 27, 2037 (11.3 yr remaining)
Assignments
AssignmentReel/Frame: 043107/0133Recorded: Jul 27, 2017
From
HSIN-YU CHENInventor
Jul 21, 2017
SHOU-WEI HSIEHInventor
Jul 21, 2017
CHUN-HAO LINInventor
Jul 21, 2017
→
To
UNITED MICROELECTRONICS CORP.
AssignmentReel/Frame: 056991/0292Recorded: Jul 26, 2021
From
UNITED MICROELECTRONICS CORPORATION
Jun 18, 2021
→
To
MARLIN SEMICONDUCTOR LIMITED