Thomas O. Leyh

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Bridgeport, WV, US

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Patents Grantslast 30 patents

Information Patent Grant
Arc discharge lamp with bimetal strip for fast passive lamp failure
- Patent number 6,211,618
- Issue date Apr 3, 2001
- Philips Electronics North America Corp.
- Stephen C. Fancher
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Emission materials for discharge lamps and method for manufacturing...
- Patent number 5,744,905
- Issue date Apr 28, 1998
- Philips Electronics North America Corporation
- Vivek Mehrotra
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Rapid start fluorescent lamp having quick hot restarting
- Patent number 5,117,156
- Issue date May 26, 1992
- North American Philips Corp.
- Thomas O. Leyh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fluorescent lamp with grounded electrode guard
- Patent number 5,004,949
- Issue date Apr 2, 1991
- North American Philips Corporation
- Frank M. Latassa
- H01 - BASIC ELECTRIC ELEMENTS