Westinghouse Air Brake Technologies Corporation et al. vs. Railware, Inc. et al.

Explore the PTAB proceeding IPR2026-00134 filed by Westinghouse Air Brake Technologies Corporation et al. on 2025-11-19. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00134

Filing Date

2025-11-19

Accorded Filing Date

2025-11-19

Institution Decision Date

2026-05-15

Last Modified Date

2026-07-07

Proceeding Type

IPR

Termination Date

2026-05-15

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

Westinghouse Air Brake Technologies Corporation et al.

Represented By

Yam, Stephenet al

Patent Owner / Respondent

Railware, Inc. et al.

Represented By

Vogel, Bryanet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 3900 - Central Reexamination Unit (CRU)

Patent Information

1 Patent Involved

Respondent Application Number 15928955

Respondent Patent Number RE47835

External Links

Espacenet

Google Patents

Respondent Inventor Ross PIRTLE

Respondent Tech Center TC 3900 - Central Reexamination Unit (CRU)

Address and Attorney/Agent Information

6 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Gary J. Gershik; John P. White - AMSTER ROTHSTEIN & EBENSTEIN LLP

Customer Number 23432

Address 405 Lexington Avenue, 48th Floor, New York, NY, 10174, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
22031	Christopher Dunham	212-278-0400
28678	John White	212-336-8193
39992	Gary Gershik	212-336-8000
40837	Paul Teng	516-424-5401
80964	Darren Haber	212-336-8192
81535	Andrew Gorman	212-336-8186

Proceeding Documents

Notice: refund approved NOTICE

2026-07-07 FILING PARTY: BOARD

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Petitioner's Request for Refund of Post-Institution Fee OTHER

2026-07-01 FILING PARTY: PETITIONER

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Director Discretionary Decision: Deny RESPONSE

2026-05-15 FILING PARTY: BOARD

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Director Discretionary Decision: Deny RESPONSE

2026-04-01 FILING PARTY: BOARD

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Patent Owner's Sur-Reply OTHER

2026-03-20 FILING PARTY: PATENT OWNER

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Westinghouse Air Brake Technologies Corporation et al. vs. Railware, Inc. et al.

Proceeding Overview

Parties & Counsel

Petitioner

Westinghouse Air Brake Technologies Corporation et al.

Represented By

Patent Owner / Respondent

Railware, Inc. et al.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice: refund approved NOTICE

Petitioner's Request for Refund of Post-Institution Fee OTHER

Director Discretionary Decision: Deny RESPONSE

Director Discretionary Decision: Deny RESPONSE

Patent Owner's Sur-Reply OTHER

Petitioner's Reply to Patent Owner's Preliminary Response OTHER

E-mail authorizing briefing Exhibit

PET Opposition to Discretionary Denial Brief RESPONSE

Email Correspondence Exhibit

Railroad Workplace Safety; Roadway Worker Protection Revisions Exhibit

NORAC OR 1-1-1993 (4th Ed.) Exhibit

Patent Owner's Preliminary Response POPR

PACER docket report for Railware, Inc. v. Southeastern Pennsylvania Transportation Authority, Case No. 2:24-cv-02963-JMY Exhibit

Stipulation and Order of Dismissal, Railware, Inc. v. Southeastern Pennsylvania Transportation Authority, Case No. 2:24-mc-01283-MRH, ECF No. 48 Exhibit

Court’s Approval of Caltrain’s Stipulation, Railware v. Peninsula Corridor Joint Powers Board d/b/a Caltrain, Case No. 5:25-cv-05725-BLF, ECF No. 68 Exhibit

NORAC OR 1-1-1997 (6th Ed.) Exhibit

Notice of Abandonment, U.S. Patent Application No. 15/726,446 (Sept. 15, 2020) Exhibit

Transcript of November 20, 2025 hearing, Railware v. Peninsula Corridor Joint Powers Board d/b/a Caltrain, Case No. 5:25-cv-05725-BLF, ECF No. 52 Exhibit

PACER docket report for Railware, Inc. v. New Jersey Transit Corporation, 1:24-cv-05537-MMG Exhibit

Amtrak’s Answer, Railware, Inc. v. National Railroad Passenger Corporation, 1:22-cv-05013-KPF, ECF No. 40 Exhibit

Amtrak letter to the Court, Railware, Inc. v. National Railroad Passenger Corporation, 1:22-cv-05013-KPF, ECF No. 124 Exhibit

Railware’s Amended Complaint Against Amtrak, Railware, Inc. v. National Railroad Passenger Corporation, 1:22-cv-05013-KPF, ECF No. 11 Exhibit

Joint Case Management Statement, Railware v. Peninsula Corridor Joint Powers Board d/b/a Caltrain, Case No. 5:25-cv-05725-BLF, ECF No. 46 Exhibit

Docket Printout Railware, Inc. v. Caltrain Exhibit

Railware, Inc. v. Amtrak, Stipulation of Dismissal Exhibit

Docket Printout Railware, Inc. v. SEPTA Exhibit

Railware, Inc. v. Caltrain, Order Denying Mtn to Stay Discovery Exhibit

Amtrak v. Railware, Inc., IPR2023-01181, Paper 8 Exhibit

Railware, Inc. v. SEPTA, Stipulation and Order of Dismissal Exhibit

Press Release Wabtec Units Awarded Contract (March 8, 2012) Exhibit

U.S. Patent Publication No. 20110278401 Exhibit

Railware, Inc. v. Caltrain, Stipulated Schedule Exhibit

Web Printout Railware - Grand Central Exhibit

SEPTA's Initial Disclosures Exhibit

Railware, Inc. v. Amtrak, Complaint for Patent Infringement Exhibit

Excerpted File History for U.S. App. No. 15 726,446 Exhibit

U.S. Patent Publication No. 20120176217 Exhibit

Railware, Inc.'s Discretionary Denial Brief (IPR2026-00134) re 47,835 Patent RESPONSE

Web Printout Railware - EEPS Exhibit

Railware, Inc. v. NJT, Complaint for Patent Infringement Exhibit

Railware’s First Subpoena to Wabtec (October 10, 2024) Exhibit

Amtrak v. Railware, Inc., IPR2023-01180, Paper 8 Exhibit

Railware, Inc. v. Caltrain, Complaint Exhibit

Amtrak v. Railware, Inc., IPR2023-01179, Paper 8 Exhibit

Railware, Inc. v. NJT, Order to Stay Case Exhibit

Press Release Wabtec Acquires Collins Aerospace’s ARINC Rail Solutions (June 16, 2022) Exhibit

Railware, Inc. v. SEPTA, Complaint for Patent Infringement Exhibit

Docket Printout Railware, Inc. v. Amtrak Exhibit

Web Printout Railware - Dispatch X Exhibit

Caltrain's Stipulation re Inter Partes Review Exhibit

Petitioner's Notice of Stipulation NOTICE

Petitioner's Updated Exhibit List NOTICE

Updated Certificate of Service - Patent Owner's Power of Attorney NOTICE

Updated Certificate of Service - Patent Owner's Mandatory Notice NOTICE

Notice: Power of Attorney NOTICE

Notice: Mandatory Notice NOTICE

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

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

U.S. Patent No. 6,078,908 (“Schmitz”) Exhibit

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

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

Federal Railroad Administration -Research Reports -- Sept. 2006 Exhibit

Internet Archive Affidavit for Exhibits 1012-1015 Exhibit

Federal Railroad Administration -Research Reports -- Mar. 2009 Exhibit

Notice: Power of Attorney NOTICE