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Peter Heidrich
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Niles, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Plug door drive system
Patent number
6,684,567
Issue date
Feb 3, 2004
Westinghouse Air Brake Tecnologies Corporation
Peter Heidrich
B61 - RAILWAYS
Information
Patent Grant
Plug door drive system
Patent number
6,539,669
Issue date
Apr 1, 2003
Westinghouse Air Brake Technologies Corporation
Peter Heidrich
B61 - RAILWAYS
Patents Applications
last 30 patents
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Patent Application
Drive system
Publication number
20040159047
Publication date
Aug 19, 2004
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
Steven P. Heffner
B61 - RAILWAYS
Information
Patent Application
Plug door drive system
Publication number
20030110700
Publication date
Jun 19, 2003
Peter Heidrich
B61 - RAILWAYS
Information
Patent Application
Drive system
Publication number
20020092236
Publication date
Jul 18, 2002
Steven P. Heffner
B61 - RAILWAYS