Inventor
NEWMARK RICHARD A
US3 patents
Patents
3 patentsUS5314795AMay 24, 1994
Thermal-dye-bleach construction comprising a polymethine dye and a thermal carbanion-generating agent
MINNESOTA MINING & MFG34 citations91
US5324627AJun 28, 1994
Tetra-alkylammonium phenylsulfonylacetate thermal-dye-bleach agents
MINNESOTA MINING & MFG10 citations72
US5384237AJan 24, 1995
Quaternary-ammonium phenylsulfonylacetate thermal-dye-bleach agents
MINNESOTA MINING & MFG3 citations61