Metrom Rail, LLC v. Siemens Mobility, Inc. et al.
Patentability filed 19 Aug 2024 in the United States Court of Appeals for the Federal Circuit and closed 11 May 2026, with US8812227B2 asserted. Recorded basis of termination: appeal dismissed in part.
Case record
- Patent involved
- US8812227B2
- Application no.
- US13/474428
- Case no.
- 24-2236
- Verdict cause
- Patentability
- Court
- Fed. Cir.
- Court level
- Court of Appeals
- Case region
- District of Columbia
- Chief judge
- None recorded
- Trial level
- Appeal
- Filed – Closed
- 19 Aug 2024 – 11 May 2026
- Duration
- 630 days
- Basis of termination
- Appeal Dismissed in Part
- Products & marks
- Collision avoidance system for rail line vehicles
- Validity challenges
- 1 on record
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Collision avoidance system for rail line vehicles
A collision avoidance system (CAS) is described that includes one or more sensor technologies, including, for example, an Ultra Wideband (UWB) sensing technology. The collision avoidance system is designed to reliably track the location and speed of vehicles and the distance between vehicles over a wide variety of track and terrain. The collision avoidance system may utilize information from a variety of sensor technologies to determine whether one or more vehicles violate speed and/or separation criteria, and may generate a warning.
- Legal status
- Active
- Granted
- 19 Aug 2014
- Earliest priority
- 14 Feb 2012
- Est. expiry
- 17 May 2032
- Validity challenges
- 1 on recordIPR2023-00470 · Patentability · filed by SIEMENS MOBILITY, INC
- Licences recorded
- None recorded
- Inventors
- CARLSON, RICHARD C. · GUNTHER, KURT A. · CYGNUS, MARC W.
- Classification
- G05D1/02B61L15/00B61L23/06B61L23/34B61L25/02G06F17/10G06G7/78G08G1/16
- Prosecution counsel
- MCANDREWS HELD & MALLOY, LTD
- Examiner
- BLACK, THOMAS
Parties of record
Metrom Rail, LLC
- Core tech
- G05D1/02B61L15/00B61L23/06B61L23/34
- Counsel
- Gregory Schodde · Philipp Ruben · Rajendra A. Chiplunkar
- Firm
- McAndrews, Held & Malloy Ltd.
Siemens Mobility, Inc.
- Core tech
- Not recorded
- Counsel
- Ali Hossein Khan Tehrani · Joshua James · Mark Michael Supko
- Firm
- Crowell & Moring, LLP
- Also named
- Ground Transportation Systems USA, Inc. · Humatics, Corp. · Piper Networks, Inc.
Counsel of record
| Attorney | For | Role |
|---|---|---|
| Gregory Schodde | Metrom Rail, LLC | Plaintiff |
| Philipp Ruben | Metrom Rail, LLC | Plaintiff |
| Rajendra A. Chiplunkar | Metrom Rail, LLC | Plaintiff |
| Ali Hossein Khan Tehrani | Siemens Mobility, Inc. | Defendant |
| Joshua James | Siemens Mobility, Inc. | Defendant |
| Mark Michael Supko | Siemens Mobility, Inc. | Defendant |
Basis of termination
From the record · verbatim“THIS CAUSE having been considered, it is ORDERED AND ADJUDGED: AFFIRMED-IN-PART AND REVERSED-IN-PART”
Case 24-2236 · Fed. Cir. · closed 11 May 2026
Related cases
Three questions this record usually leads to. Each one runs against the full litigation and patent corpus, and cites what it finds.
Frequently asked questions
What is case 24-2236?
24-2236 is a patent patentability brought by Metrom Rail, LLC against Siemens Mobility, Inc., filed on 19 Aug 2024 in the United States Court of Appeals for the Federal Circuit. The case closed on 11 May 2026.
Which patent was asserted in 24-2236?
US8812227B2 (“Collision avoidance system for rail line vehicles”), assigned to METROM RAIL, LLC, currently active. The record also lists Collision avoidance system for rail line vehicles.
How was case 24-2236 terminated?
The recorded basis of termination is appeal dismissed in part. The termination text reads: “THIS CAUSE having been considered, it is ORDERED AND ADJUDGED: AFFIRMED-IN-PART AND REVERSED-IN-PART”
How long did case 24-2236 take?
630 calendar days, from filing on 19 Aug 2024 to closure on 11 May 2026.
Who were the attorneys and the judge in 24-2236?
Gregory Schodde, Philipp Ruben and Rajendra A. Chiplunkar are recorded as counsel for plaintiff Metrom Rail. Ali Hossein Khan Tehrani, Joshua James and Mark Michael Supko appear for defendant Siemens Mobility.
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