Inventor

HENRICH WILLIAM H

US3 patents

Patents

3 patents

US4414493ANov 8, 1983

Light dimmer for solid state ballast

THOMAS INDUSTRIES INC142 citations92

US4873471AOct 10, 1989

High frequency ballast for gaseous discharge lamps

THOMAS INDUSTRIES INC54 citations89

US4791338ADec 13, 1988

Fluorescent lamp circuit with regulation responsive to voltage, current, and phase of load

THOMAS INDUSTRIES INC50 citations88