Inventor
PAPA SISTO S
IT3 patents
⚠️ This page may combine multiple inventors who share the name “PAPA SISTO S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ACNA
2 patentsUS4248776AFeb 3, 1981
Symmetrical trisazo dye obtained by coupling tetrazotized 4-4'-diaminozobenzene with 2-carboxymethylamin0-8-naphthol-6-sulphonic acid
ACNA7 citations67
US4303407ADec 1, 1981
Concentrated coloring solutions of a blue tinge based on mixture of 1.4-dialkyl-anthraquinones for the coloring of petroliferous products
ACNA10 citations62