Inventor
FRANK WILLIAM C
US4 patents
Patents
4 patentsUS5324627AJun 28, 1994
Tetra-alkylammonium phenylsulfonylacetate thermal-dye-bleach agents
MINNESOTA MINING & MFG10 citations72
US5350669ASep 27, 1994
Silver-carboxylate/1,2-diazine compounds as silver sources in photothermographic and thermographic elements
MINNESOTA MINING & MFG12 citations71
US5384237AJan 24, 1995
Quaternary-ammonium phenylsulfonylacetate thermal-dye-bleach agents
MINNESOTA MINING & MFG3 citations61
US5466804ANov 14, 1995
Silver-carboxylate/1,2-diazine compounds as silver sources in photothermographic and thermographic elements
MINNESOTA MINING & MFG0 citations49