Inventor
WILLIAMSON HUGH MARTIN
GB3 patents
Patents
3 patentsUS5876912AMar 2, 1999
Pyrazolo 1,5 a benzimidazole photographic color couplers
EASTMAN KODAK CO13 citations67
US5776669AJul 7, 1998
Phenol substituted pyrazolo 1, 5-a benzimidazole couplers
EASTMAN KODAK CO8 citations67
US6265600B1Jul 24, 2001
Activated propenes as color couplers method for the production thereof
EASTMAN KODAK CO0 citations45