Inventor
POON STEPHEN S C
GB8 patents
Patents
8 patentsUS4548896AOct 22, 1985
Dye-bleach materials and process
MINNESOTA MINING & MFG66 citations94
US4883747ANov 28, 1989
Color photothermographic elements
MINNESOTA MINING & MFG26 citations91
US5663042ASep 2, 1997
Developing agents for (photo) thermographic systems
MINNESOTA MINING & MFG25 citations90
US4581323AApr 8, 1986
Photothermographic element having topcoat bleachable antihalation layer
MINNESOTA MINING & MFG21 citations81
US5492803AFeb 20, 1996
Hydrazide redox-dye-releasing compounds for photothermographic elements
MINNESOTA MINING & MFG12 citations72
US4923792AMay 8, 1990
Color photothermographic elements
MINNESOTA MINING & MFG11 citations72
US4594312AJun 10, 1986
Heat bleachable dye systems
MINNESOTA MINING & MFG7 citations72
US4981775AJan 1, 1991
Photothermographic elements
MINNESOTA MINING & MFG14 citations67