Inventor
FARNUM SYLVIA A
US5 patents
⚠️ This page may combine multiple inventors who share the name “FARNUM SYLVIA A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINNESOTA MINING & MFG
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