Inventor
WADSWORTH DONALD H
6 patents
Patents
6 patentsUS4368247AJan 11, 1983
Photographic materials and processes comprising oxoindolizine and oxoindolizinium compounds
EASTMAN KODAK CO27 citations79
US4446223AMay 1, 1984
Recording and information record elements comprising oxoindolizine and oxoindolizinium dyes
EASTMAN KODAK CO12 citations71
US4577024AMar 18, 1986
Oxoindolizine and oxoindolizinium compounds useful as dyes
EASTMAN KODAK CO4 citations60
US4128422ADec 5, 1978
Cyclopropenone vesicular imaging composition, element and process
EASTMAN KODAK CO5 citations57
US4450093AMay 22, 1984
Indolizinone dyes and compositions, elements and methods using same
EASTMAN KODAK CO0 citations48
US4373021AFeb 8, 1983
Indolizinone dyes and compositions, elements and methods using same
EASTMAN KODAK CO0 citations48