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IP Verse

Westinghouse Air Brake Technologies Corporation et al. v. Railware, Inc. et al. - IPR2026-00134

Explore the PTAB proceeding IPR2026-00134 filed by Westinghouse Air Brake Technologies Corporation et al. against Railware, Inc. et al. on Nov 19, 2025. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Case Details

Proceeding Number
IPR2026-00134
Filing Date
Nov 19, 2025
Petitioner
Westinghouse Air Brake Technologies Corporation et al.
Respondent
Railware, Inc. et al.
Status
Pending
Respondent Application Number
15928955
Respondent Tech Center
3900
Respondent Patent Number
RE47835

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Proceeding Documents

The table below shows documents filed in the case, listing each document name, filing date, document type, and filing party. Tracking these filings indicates the activity of the parties involved in the case, and the types of documents filed can provide insights into the legal strategies being employed.

Document NameFiling DateCategoryFiling Party

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Notice: Mandatory Notice

Dec 9, 2025PAPERPATENT OWNER

Notice: Power of Attorney

Dec 9, 2025PAPERPATENT OWNER

Notice: NOTICE OF FILING DATE ACCORDED TO PETITION AND TIME FOR FILING PATENT OWNER PRELIMINARY RESPONSE

Dec 1, 2025PAPERBOARD

Petition: as filed

Nov 19, 2025PAPERPETITIONER

Notice: Power of Attorney

Nov 19, 2025PAPERPETITIONER

U.S. Patent No. RE47,835

Nov 19, 2025EXHIBITPETITIONER

File History of U.S. Patent No. RE47,835

Nov 19, 2025EXHIBITPETITIONER

Declaration of Dr. Lori Kaufman including Curriculum Vitae (“Kaufman”)

Nov 19, 2025EXHIBITPETITIONER

(Vol. 1 of 2) Supporting Railroad Roadway Worker Comms ("FRA-Report")

Nov 19, 2025EXHIBITPETITIONER

(Vol. 2 of 2) Supporting Railroad Roadway Worker Comms ("FRA-Report")

Nov 19, 2025EXHIBITPETITIONER

PCT Publication No. WO 2007/107554 A1 (“Kruijswijk”)

Nov 19, 2025EXHIBITPETITIONER

U.S. Patent No. 6,078,908 (“Schmitz”)

Nov 19, 2025EXHIBITPETITIONER

PCT Publication No. WO 2010/012040 A1 (“Macey”)

Nov 19, 2025EXHIBITPETITIONER

U.S. Patent No. 6,300,873 (“Kucharczyk”)

Nov 19, 2025EXHIBITPETITIONER

U.S. Patent No. 5,708,422 (“Blonder”)

Nov 19, 2025EXHIBITPETITIONER

U.S. Patent No. 8,406,943 (“Brand”)

Nov 19, 2025EXHIBITPETITIONER

U.S. Patent No. 6,581,161 (“Byford”)

Nov 19, 2025EXHIBITPETITIONER

Federal Railroad Administration -Research Reports -- Feb. 2005

Nov 19, 2025EXHIBITPETITIONER

Federal Railroad Administration -Research Reports -- Sept. 2006

Nov 19, 2025EXHIBITPETITIONER

Federal Railroad Administration -Research Reports -- Feb. 2008

Nov 19, 2025EXHIBITPETITIONER

Federal Railroad Administration -Research Reports -- Mar. 2009

Nov 19, 2025EXHIBITPETITIONER

Internet Archive Affidavit for Exhibits 1012-1015

Nov 19, 2025EXHIBITPETITIONER

Excerpt of File History from U.S. Patent No. RE49,115

Nov 19, 2025EXHIBITPETITIONER

Mar. 26, 2025 Oral Argument Transcript of Hearing for Wabtec’s Mot to Quash

Nov 19, 2025EXHIBITPETITIONER

PCT Publication No. WO 2005/047074 A1 (“Makkinga”)

Nov 19, 2025EXHIBITPETITIONER

U.S. Patent Publication No. 2012/0176217 (“Tamaribuchi”)

Nov 19, 2025EXHIBITPETITIONER

Federal Railroad Administration-- Impact of Data Link Technology ("Malsch")

Nov 19, 2025EXHIBITPETITIONER

U.S. Patent No. 9,403,545

Nov 19, 2025EXHIBITPETITIONER

File History of U.S. Patent No. 9,403,545

Nov 19, 2025EXHIBITPETITIONER

Railware's Opening Claim Construction Brief

Nov 19, 2025EXHIBITPETITIONER

[Redacted] Declaration of Mehdi Ahmadian ISO Railware's Claim Construction

Nov 19, 2025EXHIBITPETITIONER

SEPTA's Opening Claim Construction Brief

Nov 19, 2025EXHIBITPETITIONER

Excerpts from Transcript Mar. 28, 2025 Deposition of Medhi Ahmadian, Ph.D

Nov 19, 2025EXHIBITPETITIONER

FRA -- Communication and Coordination Demands ("Roth")

Nov 19, 2025EXHIBITPETITIONER

PCT Publication No. WO 2004/042663 A1 (“Wise”)

Nov 19, 2025EXHIBITPETITIONER

Complaint, Railware v. Caltrain (N.D. Cal.)

Nov 19, 2025EXHIBITPETITIONER

Proof of Service, Railware v. Caltrain (N.D. Cal.)

Nov 19, 2025EXHIBITPETITIONER