Richard A. Evans

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and assembly for gas detection via a convergent birefringent...
- Patent number 6,576,905
- Issue date Jun 10, 2003
- Gas Research Institute
- Harold S. Lessure
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for measuring ventilation flow exiting a spinn...
- Patent number 5,517,862
- Issue date May 21, 1996
- Westinghouse Electric Corporation
- David B. Berrong
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Method and assembly for gas detection via a convergent birefringent...
- Publication number 20030030811
- Publication date Feb 13, 2003
- Harold S. Lessure
- G01 - MEASURING TESTING