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Jeffrey Ross Johnston
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Jacksonville, FL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Induction coil driver card for a railroad switch heater system
Patent number
10,883,229
Issue date
Jan 5, 2021
Jeffrey Ross Johnston
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Inductive rail heating head for a moving-point train track rail and...
Patent number
10,829,896
Issue date
Nov 10, 2020
Jeffrey Ross Johnston
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Magnetic inductive rail heating head
Patent number
10,626,560
Issue date
Apr 21, 2020
Jeffrey Ross Johnston
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Patents Applications
last 30 patents
Information
Patent Application
Rail Heating Head
Publication number
20200217020
Publication date
Jul 9, 2020
Jeffrey R. Johnston
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Application
Induction Coil Driver Card for a Railroad Switch Heater System
Publication number
20190040586
Publication date
Feb 7, 2019
Jeffrey Ross Johnston
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Inductive Rail Heating Head for a Moving-Point Train Track Rail and...
Publication number
20190032281
Publication date
Jan 31, 2019
Jeffrey Ross Johnston
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Application
Magnetic Inductive Rail Heating Head
Publication number
20180155879
Publication date
Jun 7, 2018
Jeffrey Ross Johnston
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Magnetic Inductive Rail Switch Heater
Publication number
20160258124
Publication date
Sep 8, 2016
Jeffrey Ross Johnston
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES