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90/015,962MICROSTRUCTURE ENHANCED ABSORPTION PHOTOSENSITIVE DEVICES11,621,360Open

Status

Petition Received RE: Denial of Reexamination Request

Filed

Feb 13, 2026

Last Updated

May 20, 2026

Art Unit

3991

Requested By

Third Party

P.O. Law Firm

Wissing Miller, LLP

Sector (CPC)

GPhysics & Instruments
G02Optics
G02BOptical Elements

USPC

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

Reexam History (22 events)

May 20, 2026RXC/SRCertificate of Service
May 20, 2026RPRDRX - Petition for Review of Reexam Denial
Apr 20, 2026MREXDRX - Mail Ex Parte Request for Reexamination Denied
Feb 24, 2026MRXNReexamination Formalities Notice Mailed
Feb 24, 2026MRXNReexamination Formalities Notice Mailed
Feb 24, 2026DOCKCase Docketed to Examiner in GAU
Feb 24, 2026COMPApplication Is Now Complete
Feb 23, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Feb 23, 2026RXNREQFDNotice of reexamination request filing date
Feb 23, 2026RXNREQAUNotice of assignment of reexamination request
Feb 23, 2026PRXRParalegal Reexam Review Complete
Feb 23, 2026FTFSFITF set to YES - revise initial setting
Feb 17, 2026RXTTLRPTTitle Report
Feb 17, 2026RXRLFReExam Litigation Found
Feb 17, 2026RXLITSRReexam Litigation Search Conducted
Feb 13, 2026WIDSInformation Disclosure Statement (IDS) Filed
Feb 13, 2026RXOSUB.RReexamination requested by third party requester
Feb 13, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Feb 13, 2026RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
Feb 13, 2026RXC/SRCertificate of Service
Feb 13, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Feb 13, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

IPR2025-00994IPR — Discretionary Denial

Petitioner

Samsung Electronics Co., Ltd. et al.

Petition Filed

Jun 20, 2025

Institution

Nov 20, 2025

Decision

Nov 20, 2025

Terminated

Nov 20, 2025

Federal Circuit (CAFC)

None found

Terminal Disclaimer

Filed — ApprovedMar 29, 2022

Prosecution History

DateCodeDescription
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Jun 17, 2022P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Mar 29, 2022DISTTerminal Disclaimer Filed
Mar 29, 2022DISTTerminal Disclaimer Filed
Mar 29, 2022DISTTerminal Disclaimer Filed
Mar 29, 2022DISTTerminal Disclaimer Filed
Mar 29, 2022DISTTerminal Disclaimer Filed
Mar 29, 2022DISTTerminal Disclaimer Filed
Mar 29, 2022DISTTerminal Disclaimer Filed
Mar 29, 2022DISTTerminal Disclaimer Filed
Mar 29, 2022DISTTerminal Disclaimer Filed
Mar 29, 2022DISTTerminal Disclaimer Filed
Mar 29, 2022DISTTerminal Disclaimer Filed

Maintenance Fees

Grant
Apr 4, 2023
3.5-yr
Oct 4, 2026
7.5-yr
Oct 4, 2030
11.5-yr
Oct 4, 2034
Expiry
Mar 29, 2042

Entity Status

Small Entity

Expires

Mar 29, 2042 (16 yr remaining)

Assignments

202220232024FiledSHIH-PING WANGSHIH-YUAN WANGW&W SENS DEVICES, INCIP LITFIN US 2024 LLC
AssignmentReel/Frame: 059430/0164Recorded: Mar 29, 2022

From

SHIH-PING WANGInventor
Nov 22, 2021
SHIH-YUAN WANGInventor
Nov 22, 2021
→

To

W&W SENS DEVICES, INC

OtherReel/Frame: 069230/0668Recorded: Oct 23, 2024

From

W&WSENS DEVICES, INC.
Oct 8, 2024
→

To

IP LITFIN US 2024 LLC