Litigation
Metrom Rail, LLC v. Massachusetts Bay Transportation Authority et al.
transferred1:25-cv-11446
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- Filed
- 2025-05-21
Patents at issue (2)
Defender signal. Patent 9043131 has had claims invalidated at PTAB. Those final written decisions are public record and a ready-made § 102 / § 103 ground in district court. See IPR estoppel for what carries over.
Plaintiffs (1)
Summary
Patent infringement action against MBTA and Piper Networks concerning Piper's Rail Positioning System, ATP-O, and GLTPS. The court granted Piper's motion to dismiss or transfer for improper venue under TC Heartland, granted MBTA's motion to sever and stay, denied Metrom's motions for preliminary injunction and expedited discovery without prejudice, and denied MBTA's motion to dismiss with leave to renew. The case as to Piper was transferred to S.D.N.Y.
Case overview & background
Plain-language overview of the case: parties, accused product, patents at issue, and why the suit matters.
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Key legal developments & outcome
Major rulings, motions, claim construction, settlements, and the present posture or final disposition.
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Plaintiff representatives
Counsel of record for the plaintiff(s): attorneys, firms, and roles (lead counsel, of counsel, local counsel).
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Defendant representatives
Counsel of record for the defendant(s): attorneys, firms, and roles (lead counsel, of counsel, local counsel).
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