Inventor
RENFREW EDGAR E
7 patents
⚠️ This page may combine multiple inventors who share the name “RENFREW EDGAR E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMERICAN COLOR & CHEM
5 patentsUS3948938AApr 6, 1976
Polymeric materials colored with yellow methine dyes and pigments
AMERICAN COLOR & CHEM7 citations70
US4355012AOct 19, 1982
Mixed anthraquinonedisulfonic acids
AMERICAN COLOR & CHEM2 citations56
US4141892AFeb 27, 1979
Process for preparing p-[[p-(phenylazo)phenyl]azo]phenol
AMERICAN COLOR & CHEM1 citations50
US4016153AApr 5, 1977
Monoazo dyestuff mixtures derived from 2-amino-5-nitro-thiazole and bis-hydroxyalkylamino acklanilides reacted with acid halides and amides
AMERICAN COLOR & CHEM0 citations48
US4008212AFeb 15, 1977
Monoazo dye mixtures derived from 7-amino-4-nitrobenzotriazole and bis-hydroxyalkylamino acylanilides reacted with acid halides and amides
AMERICAN COLOR & CHEM0 citations48