Plaintiff

Metrom Rail, LLC

4 cases as plaintiff.

Cases
4
Active
2
2 closed
Filed
2022–2025
Top venue
D. Delaware
2 cases
Also appears as a defendant in 2 cases → View as defendant

Company profile

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Metrom Rail, LLC is a privately held railroad technology company based at 1125 Mitchell Ct., Crystal Lake, Illinois, with earlier offices in Lakemoor, IL. It was founded in 2010 (Illinois LLC registration November 16, 2010) and is managed by CEO Jim Marchi; no parent or public ticker is disclosed. Third-party data aggregators estimate roughly 20–25 employees and revenue in the $5–10 million range (Kona Equity, Salary.com, ZoomInfo), but no audited figure or company confirmation is available, so treat these as unverified estimates.

Products / operations. Metrom develops and sells ultra-wideband (UWB)-based railway safety, signaling, and train-control equipment to freight and transit railroads. Its principal line is the AURA System, which includes the AURA collision-avoidance system for maintenance-of-way vehicles, the AURA train-control product, and roadway-worker protection systems; the related CERTIS train-localization product provides UWB-based positioning. The company also supplies communications towers and related integration services. It is an operating company with commercial deployments, not a shell licensor: its 2022 press release described deployments on "thousands of railway maintenance-of-way vehicles."

Litigation posture. Metrom is an active two-way litigant. The tracked data show 4 cases as plaintiff and 2 as defendant — the latter being PTAB inter partes reviews, not district-court suits. It asserts its own developed patent portfolio (reported as 8 issued U.S. patents in 2022; databases list roughly 40–50 filings). Suits are in the District of Delaware, S.D.N.Y., and D. Massachusetts — not the Eastern District of Texas.

Notable cases. Metrom Rail v. Siemens Mobility, Thales, Humatics, and Piper Networks (D. Del., Jan. 2022) concerned UWB technology tied to MTA New York City Transit signal modernization. Defendants petitioned for IPR on U.S. Patents 9,043,131 and 8,812,227; the PTAB found the claims obvious, and the Federal Circuit affirmed in part and reversed in part on May 11, 2026 (No. 24-2223), invalidating claims 17–20 as well. Metrom also sued Ground Transportation Systems USA (now Hitachi Rail GTS USA) in Delaware (2023) and the MBTA and Piper in Massachusetts (May 2025) over the MBTA Green Line Train Protection System procurement.

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Filing activity

2022: 1 case1'222023: 1 case'23'242025: 1 case'25
Cases filed per year with Metrom Rail, LLC as plaintiff.

Metrom Rail, LLC v. Massachusetts Bay Transportation Authority et al.

transferred
Docket:
1:25-cv-11446
Filed:
2025-05-21
Patents:90431319731738
π Metrom Rail, LLCΔ Massachusetts Bay Transportation AuthorityΔ Piper Networks, Inc.

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.

Metrom Rail, LLC v. Ground Transportation Systems USA Inc. (subsequently Hitachi Rail GTS USA Inc.) et al.

pending/unknown
Docket:
1:23-cv-00314
Filed:
2023-03-22
Patents:90431318812227101795951073770910778363
π Metrom Rail, LLCΔ Ground Transportation Systems USA Inc. (subsequently Hitachi Rail GTS USA Inc.)Δ Piper Networks, Inc.

Patent infringement action in D. Del. against Ground Transportation Systems USA (later Hitachi Rail GTS USA) and Piper Networks. The narrative could not confirm a disposition; related '131 litigation substantially migrated to S.D.N.Y.

Metrom Rail, LLC v. Siemens Mobility, Inc. et al.

closed
Docket:
1:22-cv-00049-RGA
Filed:
2022-01-13
Terminated:
2023-04-11
Patents:88122271077836390431311073770910179595
π Metrom Rail, LLCΔ Siemens Mobility, Inc.Δ Thales Transport & Security, Inc.Δ Thales USA, Inc.Δ Humatics Corp.Δ Piper Networks, Inc.

Metrom Rail asserted the '227 patent and four related patents against Siemens Mobility, Thales entities, Humatics, and Piper Networks. The court granted in part and denied in part motions to dismiss, severed the case into defendant groups, and closed the Delaware action; severed patent claims continued in the Southern District of New York.

Metrom Rail, LLC v. Ground Transportation Systems USA, Inc. et al.

pending/stayed
Docket:
1:23-cv-02920
Patents:8812227101795951073770910778363
π Metrom Rail, LLCΔ Ground Transportation Systems USA, Inc.Δ Piper Networks, Inc.

Metrom Rail's parallel action against Ground Transportation Systems USA and Piper Networks, resulting from the transfer/severance of the original Delaware action. It was pending at the time of the June 18, 2024 PTAB decision and is subject to the same IPR-driven stay dynamics.