Douglas T. Main JR.

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Newtown, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Hi-rail vehicle-based rail inspection system
- Patent number 6,600,999
- Issue date Jul 29, 2003
- Sperry Rail, Inc.
- Robin Clark
- B61 - RAILWAYS
Information Patent Grant
Brush assembly for magnetic induction test apparatus
- Patent number 6,476,603
- Issue date Nov 5, 2002
- Sperry Rail, Inc.
- Robin Clark
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
Brush assembly for magnetic induction test apparatus
- Publication number 20020065629
- Publication date May 30, 2002
- Robin Clark
- B61 - RAILWAYS
Information Patent Application
Hi-rail vehicle-based rail inspection system
- Publication number 20020065610
- Publication date May 30, 2002
- Robin Clark
- B61 - RAILWAYS