Invalidity dossier

US 10778363

Methods and systems for decentralized rail signaling and positive train control

Added 9/11/2026, 12:46:48 AM

At a glanceNo PTAB challenges3 lawsuits on fileasserted by Metrom Rail, LLC

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Patent summary

Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.

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Cases on file (3)

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Specific litigation cases in our database that name US patent 10778363. The free-form analysis below may also discuss cases beyond this list.

Metrom Rail, LLC v. Ground Transportation Systems USA Inc. (subsequently Hitachi Rail GTS USA Inc.) et al.filed Mar 22, 2023
1:23-cv-00314U.S. District Court for the District of Delawarepending/unknown
Defendants: Ground Transportation Systems USA Inc. (subsequently Hitachi Rail GTS USA Inc.), Piper Networks, Inc.
Other patents asserted: 9043131, 8812227, 10179595, 10737709
Metrom Rail, LLC v. Siemens Mobility, Inc. et al.filed Jan 13, 2022
1:22-cv-00049-RGAU.S. District Court for the District of Delawareterminated Apr 11, 2023closed
Defendants: Siemens Mobility, Inc., Thales Transport & Security, Inc., Thales USA, Inc., and 2 others
Other patents asserted: 8812227, 9043131, 10737709, 10179595
Metrom Rail, LLC v. Ground Transportation Systems USA, Inc. et al.
1:23-cv-02920U.S. District Court for the Southern District of New Yorkpending/stayed
Defendants: Ground Transportation Systems USA, Inc., Piper Networks, Inc.
Other patents asserted: 8812227, 10179595, 10737709

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

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Proceedings on file (0)

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AIA trial proceedings (IPR / PGR / CBM) filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced from the USPTO Open Data Portal and refreshed every six hours; each proceeding number deep-links to the PTAB E2E docket.

Current assignee: Metrom Rail, LLC

No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.

PTAB challenges

AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.

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Assignment history

Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.

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Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

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Obviousness

Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.

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Extensions

Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.

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Derivative works

Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.

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More patents asserted by Metrom Rail, LLC

This patent in court (3)

3 tracked lawsuits name US 10778363.