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Marc W. Cygnus
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Mundelein, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Rail vehicle signal enforcement and separation control
Patent number
12,258,058
Issue date
Mar 25, 2025
METROM RAIL, LLC
Richard C. Carlson
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Methods and systems for decentralized rail signaling and positive t...
Patent number
11,700,075
Issue date
Jul 11, 2023
METROM RAIL, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Grant
Methods and systems for decentralized rail signaling and positive t...
Patent number
11,349,589
Issue date
May 31, 2022
METROM RAIL, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Grant
Worker protection system
Patent number
10,926,783
Issue date
Feb 23, 2021
Richard Carlson
B61 - RAILWAYS
Information
Patent Grant
Methods and systems for decentralized rail signaling and positive t...
Patent number
10,778,363
Issue date
Sep 15, 2020
METROM RAIL, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Grant
Worker protection system
Patent number
10,737,709
Issue date
Aug 11, 2020
METROM RAIL, LLC
Richard Carlson
B61 - RAILWAYS
Information
Patent Grant
Worker protection system
Patent number
10,336,353
Issue date
Jul 2, 2019
METROM RAIL, LLC
Richard Carlson
B61 - RAILWAYS
Information
Patent Grant
Worker protection system
Patent number
10,179,595
Issue date
Jan 15, 2019
METROM RAIL, LLC
Richard Carlson
B61 - RAILWAYS
Information
Patent Grant
Rail vehicle signal enforcement and separation control
Patent number
9,731,738
Issue date
Aug 15, 2017
METROM RAIL, LLC
Richard C. Carlson
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Collision avoidance system for rail line vehicles
Patent number
9,043,131
Issue date
May 26, 2015
Metrom Rail, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Grant
Collision avoidance system for rail line vehicles
Patent number
8,812,227
Issue date
Aug 19, 2014
Metrom Rail, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Grant
Rail line sensing and safety system
Patent number
8,752,797
Issue date
Jun 17, 2014
Metrom Rail, LLC
Richard C. Carlson
B61 - RAILWAYS
Patents Applications
last 30 patents
Information
Patent Application
METHODS AND SYSTEMS FOR DECENTRALIZED RAIL SIGNALING AND POSITIVE T...
Publication number
20240089022
Publication date
Mar 14, 2024
Metrom Rail, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Application
Rail Vehicle Signal Enforcement and Separation Control
Publication number
20230192164
Publication date
Jun 22, 2023
Metrom Rail, LLC
Richard C. Carlson
B60 - VEHICLES IN GENERAL
Information
Patent Application
METHODS AND SYSTEMS FOR DECENTRALIZED RAIL SIGNALING AND POSITIVE T...
Publication number
20220140931
Publication date
May 5, 2022
Metrom Rail, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Application
WORKER PROTECTION SYSTEM
Publication number
20200062286
Publication date
Feb 27, 2020
Metrom Rail, LLC
Richard Carlson
B61 - RAILWAYS
Information
Patent Application
METHODS AND SYSTEMS FOR DECENTRALIZED RAIL SIGNALING AND POSITIVE T...
Publication number
20190337545
Publication date
Nov 7, 2019
Metrom Rail, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Application
Rail Vehicle Signal Enforcement and Separation Control
Publication number
20190300033
Publication date
Oct 3, 2019
Metrom Rail, LLC
Richard C. Carlson
B60 - VEHICLES IN GENERAL
Information
Patent Application
WORKER PROTECTION SYSTEM
Publication number
20190283787
Publication date
Sep 19, 2019
Metrom Rail, LLC
Richard Carlson
B61 - RAILWAYS
Information
Patent Application
METHODS AND SYSTEMS FOR DECENTRALIZED RAIL SIGNALING AND POSITIVE T...
Publication number
20190263432
Publication date
Aug 29, 2019
Metrom Rail, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Application
Rail Vehicle Signal Enforcement and Separation Control
Publication number
20180362058
Publication date
Dec 20, 2018
Metrom Rail, LLC
Richard C. Carlson
B60 - VEHICLES IN GENERAL
Information
Patent Application
WORKER PROTECTION SYSTEM
Publication number
20170282944
Publication date
Oct 5, 2017
Metrom Rail, LLC
Richard Carlson
B61 - RAILWAYS
Information
Patent Application
WORKER PROTECTION SYSTEM
Publication number
20160280240
Publication date
Sep 29, 2016
Metrom Rail, LLC
Richard Carlson
B61 - RAILWAYS
Information
Patent Application
Rail Vehicle Signal Enforcement and Separation Control
Publication number
20150329130
Publication date
Nov 19, 2015
Metrom Rail, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Application
Rail Vehicle Signal Enforcement and Separation Control
Publication number
20150060608
Publication date
Mar 5, 2015
Metrom Rail, LLC
Richard C. Carlson
B60 - VEHICLES IN GENERAL
Information
Patent Application
RAIL LINE SENSING AND SAFETY SYSTEM
Publication number
20140346285
Publication date
Nov 27, 2014
Metrom Rail, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Application
COLLISION AVOIDANCE SYSTEM FOR RAIL LINE VEHICLES
Publication number
20140229096
Publication date
Aug 14, 2014
Metrom Rail, LLC
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Application
COLLISION AVOIDANCE SYSTEM FOR RAIL LINE VEHICLES
Publication number
20120296562
Publication date
Nov 22, 2012
Richard C. Carlson
B61 - RAILWAYS
Information
Patent Application
RAIL LINE SENSING AND SAFETY SYSTEM
Publication number
20120138752
Publication date
Jun 7, 2012
Richard C. Carlson
B61 - RAILWAYS