Status
Determination - Reexamination Ordered
Requester
Unknown
Requester Law Firm
Unknown
Requested By
Third Party
Patent Owner
P.O. Law Firm
Reexam History (21 events)
Jul 21, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
May 4, 2026PA..Change in Power of Attorney (May Include Associate POA)
Apr 27, 2026MRXNReexamination Formalities Notice Mailed
Apr 27, 2026MRXNReexamination Formalities Notice Mailed
Apr 27, 2026DOCKCase Docketed to Examiner in GAU
Apr 27, 2026COMPApplication Is Now Complete
Apr 24, 2026RXNREQAUNotice of assignment of reexamination request
Apr 24, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Apr 24, 2026RXNREQFDNotice of reexamination request filing date
Apr 23, 2026RXTTLRPTTitle Report
Apr 23, 2026RXLITSRReexam Litigation Search Conducted
Apr 23, 2026RXRLFReExam Litigation Found
Apr 23, 2026FTFIFITF set to NO - revise initial setting
Apr 22, 2026RXOSUB.RReexamination requested by third party requester
Apr 22, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Apr 22, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Apr 22, 2026PRXRParalegal Reexam Review Complete
Apr 22, 2026RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
Apr 22, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Apr 22, 2026RXC/SRCertificate of Service
Apr 22, 2026WIDSInformation Disclosure Statement (IDS) Filed
Prosecution, PTAB & CAFC
PTAB Proceedings (IPR, PGR, CBM, DER)
IPR2025-01451IPR — Discretionary Denial
Petitioner
SK hynix Inc.
Petition Filed
Aug 27, 2025
Institution
Dec 18, 2025
Decision
Dec 18, 2025
Terminated
Dec 18, 2025
Federal Circuit (CAFC)
None found
Terminal Disclaimer
None found
Prosecution History
None found
Maintenance Fees
Grant
Jun 28, 2011
3.5-yr
Dec 28, 2014
7.5-yr
Dec 28, 2018
Paid Dec 14, 2018
11.5-yr
Dec 28, 2022
Paid Dec 14, 2022
Expiry
Jul 24, 2029
Entity Status
Large Entity
Expires
Jul 24, 2029 (3.2 yr remaining)
Term Adjustment
+22 days (~0.1 yr)
Assignments
AssignmentReel/Frame: 023266/0680Recorded: Sep 22, 2009
From
SEIJI YAMAHIRAInventor
Jun 22, 2009
→
To
PANASONIC CORPORATION
AssignmentReel/Frame: 053570/0429Recorded: Aug 24, 2020
From
PANASONIC CORPORATION
Aug 17, 2020
→
To
PANASONIC SEMICONDUCTOR SOLUTIONS CO., LTD.
Name ChangeReel/Frame: 066849/0802Recorded: Mar 20, 2024
From
PANASONIC SEMICONDUCTOR SOLUTIONS CO., LTD.
Sep 2, 2020
→
To
NUVOTON TECHNOLOGY CORPORATION JAPAN
AssignmentReel/Frame: 067184/0869Recorded: Apr 22, 2024
From
NUVOTON TECHNOLOGY CORPORATION JAPAN
Mar 25, 2024
→
To
ADVANCED MEMORY TECHNOLOGIES LLC