Bill Wei Shiu Chien

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Waterloo, CA

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Patents Grantslast 30 patents

Information Patent Grant
Interface strip for road/rail crossing
- Patent number 5,899,379
- Issue date May 4, 1999
- Performance Polymers Inc.
- Dominicus Bruyn
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Boot for streetcar rails
- Publication number 20050023366
- Publication date Feb 3, 2005
- Frank Drayton Williams
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
Between-rails roadway for road-rail crossings
- Publication number 20030085292
- Publication date May 8, 2003
- Dominicus Bruyn
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES