Inventor
GRAHAM TIMOTHY W
US6 patents
Patents
6 patentsUS5144190ASep 1, 1992
Light source having desired color temperature and chromaticity
WELCH ALLYN INC82 citations95
US5059146AOct 22, 1991
Method of adjusting a light source for color temperature and chromaticity
WELCH ALLYN INC61 citations95
US5144201ASep 1, 1992
Low watt metal halide lamp
WELCH ALLYN INC53 citations91
US5083059AJan 21, 1992
Electrode for metal halide discharge lamp
WELCH ALLYN INC24 citations85
US5420477AMay 30, 1995
Electrode for metal halide discharge lamp
WELCH ALLYN INC11 citations71
US5942850AAug 24, 1999
Miniature projection lamp
WELCH ALLYN INC15 citations67