Patent 9517782
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Active provider: Google · gemini-2.5-flash
PTAB activity (1)
AIA trial proceedings — IPR, PGR, CBM — filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced directly from the PTAB Trial API.
- IPR2026-00133IPRfiled Nov 19, 2025vs. Westinghouse Air Brake Technologies Corporation et al.Discretionary Denial
Cached for 24 hours. Status strings are sourced verbatim from the PTAB API; the colored badge is our heuristic classification.
Cases on file (3)
Group view →Specific litigation cases in our database that name US patent 9517782. The free-form analysis below may also discuss cases beyond this list.
- IPR2023-01179Patent Trial and Appeal Board (PTAB)Not Instituted - Merits
Defendants: NATIONAL RAILROAD PASSENGER CORPORATION D/B/A AMTRAK
- IPR2026-00133Patent Trial and Appeal Board (PTAB)Not Instituted - Procedural
Defendants: RAILWARE, INC.
- 1:24-cv-05537New York Southern District CourtActive litigation
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
US Patent 9517782, titled "Tools for railway traffic control," has been involved in the following litigation:
Patent Trial and Appeal Board (PTAB) Cases:
Case Number: IPR2023-01179
- Plaintiff(s): Unified Patents PTAB Data (Petitioner)
- Defendant(s): NATIONAL RAILROAD PASSENGER CORPORATION D/B/A AMTRAK (Patent Owner)
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Filing Date: July 6, 2023
- Outcome/Status: Not Instituted - Merits
Case Number: IPR2026-00133
- Plaintiff(s): Westinghouse Air Brake Technologies Corporation (Petitioner)
- Defendant(s): RAILWARE, INC. (Patent Owner)
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Filing Date: Not explicitly stated, but the petition for inter partes review was filed by Westinghouse Air Brake Technologies Corporation.
- Outcome/Status: Not Instituted - Procedural
District Court Cases:
Jurisdiction: New York Southern District Court
- Plaintiff(s): Not specified in the provided information.
- Defendant(s): Not specified in the provided information.
- Case Number: 1:24-cv-05537
- Filing Date: Not specified in the provided information.
- Outcome/Status: Active litigation
Jurisdiction: Pennsylvania Eastern District Court
- Plaintiff(s): Not specified in the provided information.
- Defendant(s): Not specified in the provided information.
- Case Number: 2:24-cv-02963
- Filing Date: Not specified in the provided information.
- Outcome/Status: Active litigation
Jurisdiction: California Northern District Court
- Plaintiff(s): Not specified in the provided information.
- Defendant(s): Not specified in the provided information.
- Case Number: 3:25-cv-05725
- Filing Date: Not specified in the provided information.
- Outcome/Status: Active litigation
Jurisdiction: California Northern District Court
- Plaintiff(s): Not specified in the provided information.
- Defendant(s): Not specified in the provided information.
- Case Number: 5:25-cv-05725
- Filing Date: Not specified in the provided information.
- Outcome/Status: Active litigation
Jurisdiction: New York Southern District Court
- Plaintiff(s): Not specified in the provided information.
- Defendant(s): Not specified in the provided information.
- Case Number: 1:22-cv-05013
- Filing Date: Not specified in the provided information.
- Outcome/Status: Active litigation
Generated 5/26/2026, 6:48:19 PM