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Robert L. Gustavson
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Winter Springs, FL, US
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Patents Grants
last 30 patents
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Patent Grant
Vehicle classification and axle counting sensor system and method
Patent number
6,304,321
Issue date
Oct 16, 2001
Schwartz Electro-Optics, Inc.
Richard J. Wangler
G08 - SIGNALLING
Information
Patent Grant
Intelligent vehicle highway system sensor and method
Patent number
5,896,190
Issue date
Apr 20, 1999
Schwartz Electro-Optics, Inc.
Richard J. Wangler
G08 - SIGNALLING
Information
Patent Grant
Intelligent vehicle highway system multi-lane sensor and method
Patent number
5,793,491
Issue date
Aug 11, 1998
Schwartz Electro-Optics, Inc.
Richard J. Wangler
G08 - SIGNALLING
Information
Patent Grant
Intelligent vehicle highway system sensor and method
Patent number
5,757,472
Issue date
May 26, 1998
Schwartz Electro-Optics, Inc.
Richard J. Wangler
G08 - SIGNALLING
Information
Patent Grant
Intelligent vehicle highway system sensor and method
Patent number
5,546,188
Issue date
Aug 13, 1996
Schwartz Electro-Optics, Inc.
Richard J. Wangler
G08 - SIGNALLING
Information
Patent Grant
Active near-field object sensor and method employing object classif...
Patent number
5,321,490
Issue date
Jun 14, 1994
Schwartz Electro-Optics, Inc.
Robert A. Olson
G08 - SIGNALLING
Patents Applications
last 30 patents
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Patent Application
Vehicle classification and axle counting sensor system and method
Publication number
20020140924
Publication date
Oct 3, 2002
Richard J. Wangler
G01 - MEASURING TESTING