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90/015,945MICROSTRUCTURE ENHANCED ABSORPTION PHOTOSENSITIVE DEVICES10,468,543Open

Status

Determination - Reexamination Ordered

Filed

Feb 3, 2026

Last Updated

May 11, 2026

Art Unit

3991

Requested By

Third Party

Patent Owner Law Firm

Owner hasn't filed yet

Sector (CPC)

HElectrical & Electronic
H10Semiconductor Devices
H10FInorganic Semiconductor Bodies

USPC

257Active Solid-State Devices (E.g., Transistors, Solid-State Diodes)

Reexam History (27 events)

Jul 10, 2026RXOPPPETReexam - Opposition filed in response to petition
Jul 10, 2026RXC/SRCertificate of Service
Jun 26, 2026RXC/SRCertificate of Service
Jun 26, 2026RXPET.Receipt of Petition in a Reexam
May 14, 2026PA..Change in Power of Attorney (May Include Associate POA)
May 11, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Apr 20, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Mar 6, 2026IDSCInformation Disclosure Statement considered
Feb 26, 2026MRXNReexamination Formalities Notice Mailed
Feb 26, 2026COMPApplication Is Now Complete
Feb 26, 2026DOCKCase Docketed to Examiner in GAU
Feb 26, 2026MRXNReexamination Formalities Notice Mailed
Feb 25, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Feb 25, 2026FTFSFITF set to YES - revise initial setting
Feb 25, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Feb 25, 2026RXNREQAUNotice of assignment of reexamination request
Feb 25, 2026RXNREQFDNotice of reexamination request filing date
Feb 24, 2026SMALApplicant Has Filed a Verified Statement of Small Entity Status in Compliance with 37 CFR 1.27
Feb 24, 2026RXTTLRPTTitle Report
Feb 3, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Feb 3, 2026RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
Feb 3, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Feb 3, 2026PRXRParalegal Reexam Review Complete
Feb 3, 2026RXC/SRCertificate of Service
Feb 3, 2026RXOSUB.RReexamination requested by third party requester
Feb 3, 2026WIDSInformation Disclosure Statement (IDS) Filed
Feb 3, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

IPR2025-00995IPR — Discretionary Denial

Petitioner

Samsung Electronics Co., Ltd. et al.

Petition Filed

May 20, 2025

Institution

Oct 17, 2025

Decision

Oct 17, 2025

Terminated

Oct 17, 2025

Federal Circuit (CAFC)

None found

Terminal Disclaimer

Filed — ApprovedMar 8, 2019

Prosecution History

DateCodeDescription
Aug 14, 2019P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Aug 14, 2019P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Aug 14, 2019P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Aug 14, 2019P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Aug 14, 2019P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Aug 14, 2019P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Mar 8, 2019DISTTerminal Disclaimer Filed
Mar 8, 2019DISTTerminal Disclaimer Filed
Mar 8, 2019DISTTerminal Disclaimer Filed
Mar 8, 2019DISTTerminal Disclaimer Filed
Mar 8, 2019DISTTerminal Disclaimer Filed
Mar 8, 2019DISTTerminal Disclaimer Filed

Maintenance Fees

Grant
Nov 5, 2019
3.5-yr
May 5, 2023
Paid Apr 19, 2023
7.5-yr
May 5, 2027
11.5-yr
May 5, 2031
Expiry
Mar 8, 2039

Entity Status

Small Entity

Expires

Mar 8, 2039 (13 yr remaining)

Assignments

20202021202220232024FiledW&WSENS DEVICES, INC.IP LITFIN US 2024 LLC
OtherReel/Frame: 069230/0668Recorded: Oct 23, 2024

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W&WSENS DEVICES, INC.
Oct 8, 2024
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IP LITFIN US 2024 LLC