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90/016,700TOOLS FOR RAILWAY TRAFFIC CONTROLRE49,115Open

Status

Reexam Preprocessing Completed - Released to Assigned GAU

Filed

Oct 23, 2026

Pre-Order Paper

Window open until about Dec 2, 2026

Last Updated

Oct 29, 2026

Examiner

Not assigned

Art Unit

3993

Requester Law Firm

Venable LLP

Requested By

Third Party

Patent Owner(via USPTO assignment records)

Railware, Inc.

Patent Owner Law Firm

Owner hasn't filed yet

Sector (CPC)

BMechanical & Manufacturing
B61Railways
B61L

USPC

Unknown

Reexam History (22 events)

Oct 30, 2026COMPApplication Is Now Complete
Oct 30, 2026MRXNReexamination Formalities Notice Mailed
Oct 30, 2026MRXNReexamination Formalities Notice Mailed
Oct 29, 2026RXNREQFDNotice of reexamination request filing date
Oct 29, 2026FTFSFITF set to YES - revise initial setting
Oct 29, 2026RXNREQAUNotice of assignment of reexamination request
Oct 29, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Oct 28, 2026PRXRParalegal Reexam Review Complete
Oct 28, 2026RXRLFReExam Litigation Found
Oct 28, 2026RXLITSRReexam Litigation Search Conducted
Oct 24, 2026RXNREQAUNotice of assignment of reexamination request
Oct 24, 2026RXTTLRPTTitle Report
Oct 24, 2026RXNREQFDNotice of reexamination request filing date
Oct 23, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Oct 23, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Oct 23, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Oct 23, 2026RXLET.Miscellaneous Incoming Letter
Oct 23, 2026RXIDS.Information Disclosure Statement Filed
Oct 23, 2026WIDSInformation Disclosure Statement (IDS) Filed
Oct 23, 2026RXC/SRCertificate of Service
Oct 23, 2026RXOSUB.RReexamination requested by third party requester
Oct 23, 2026WIDSInformation Disclosure Statement (IDS) Filed

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

IPR2026-00135IPR — Discretionary Denial

Petitioner

Westinghouse Air Brake Technologies Corporation et al.

Petition Filed

Nov 19, 2025

Institution

May 15, 2026

Decision

May 15, 2026

Terminated

May 15, 2026

IPR2023-01181IPR — Institution Denied

Petitioner

NATIONAL RAILROAD PASSENGER CORPORATION D/B/A AMTRAK

Petition Filed

Jul 6, 2023

Institution

Jan 22, 2024

Decision

Jan 22, 2024

Terminated

Jan 22, 2024

Federal Circuit (CAFC)

None found

Terminal Disclaimer

None found

Prosecution History

None found

Maintenance Fees

None found

Assignments

None found