Patent RE47835
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
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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.
- IPR2026-00134IPRfiled Nov 19, 2025vs. Westinghouse Air Brake Technologies Corporation et al.Discretionary Denial
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Cases on file (1)
Group view →Specific litigation cases in our database that name US patent RE47835. The free-form analysis below may also discuss cases beyond this list.
- Railware, Inc. v. National Railroad Passenger Corporation d/b/a Amtrakfiled Jun 15, 20221:22−cv−05013−KPFU.S. District Court Southern District of New Yorkactive
Defendants: National Railroad Passenger Corporation d/b/a Amtrak
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Here is the known litigation involving US patent RE47835 as of April 26, 2026:
Case 1:
- Plaintiff(s): Railware, Inc.
- Defendant(s): National Railroad Passenger Corporation d/b/a Amtrak
- Jurisdiction: U.S. District Court Southern District of New York
- Case Number: 1:22−cv−05013−KPF
- Filing Date: June 15, 2022
- Outcome or Current Status: The case was filed, and a request for issuance of summons was made for National Railroad Passenger Corporation d/b/a Amtrak. Further details regarding the outcome or current status are not available from the provided search results.
Note: US Patent RE47835 is identified in the litigation as a reissue of US Patent 9,403,545.
Generated 6/15/2026, 12:46:33 AM