Inventor
JEFFERIES PATRICK J
11 patents
⚠️ This page may combine multiple inventors who share the name “JEFFERIES PATRICK J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
STERLING DRUG INC
8 patentsUS4103092AJul 25, 1978
Water-soluble quaternary ammonium non-heterocyclic azo dyestuffs
STERLING DRUG INC23 citations81
US4206144AJun 3, 1980
N,N-Dialkyl-N-aminoalkyl-N-(amino or nitro)phenylalkyl- and N-methyl-N-[3-(amino or nitro)phenoxy-2-hydroxy-1-propyl]-N,N-bis(3-aminopropyl)quaternary ammonium salts
STERLING DRUG INC16 citations73
US4065500ADec 27, 1977
Water-soluble quaternary ammonium azo dyestuffs
STERLING DRUG INC7 citations73
US3996282ADec 7, 1976
Water-soluble quaternary ammonium dyestuffs
STERLING DRUG INC11 citations73
US3935182AJan 27, 1976
Water-soluble quaternary ammonium heterocyclic azo dyestuffs
STERLING DRUG INC8 citations73
US4143034AMar 6, 1979
Polyaminomethylated monoazo and disazo colorants
STERLING DRUG INC16 citations71
US4146558AMar 27, 1979
Azo dyestuff intermediate nitro- or aminobenzenes ring-substituted by a quaternized amine alkyl or amino-alkoxy group
STERLING DRUG INC6 citations62
US4399291AAug 16, 1983
Process for the production of substituted aminophthalides
STERLING DRUG INC0 citations41