William H. Henrich

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Sparta, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
High frequency ballast for gaseous discharge lamps
- Patent number 4,873,471
- Issue date Oct 10, 1989
- Thomas Industries Inc.
- Thomas E. Dean
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Fluorescent lamp circuit with regulation responsive to voltage, cur...
- Patent number 4,791,338
- Issue date Dec 13, 1988
- Thomas Industries, Inc.
- Thomas E. Dean
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Light dimmer for solid state ballast
- Patent number 4,414,493
- Issue date Nov 8, 1983
- Thomas Industries Inc.
- William H. Henrich
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR