Inventor
TOMKO JOHN
US13 patents
⚠️ This page may combine multiple inventors who share the name “TOMKO JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AKZO AMERICA INC
4 patentsUS4952646AAug 28, 1990
Epoxy resin compositions containing a polyphosphoric/polyphosphonic anhydride curing agent
AKZO AMERICA INC9 citations73
US4950757AAug 21, 1990
Process for manufacture of melamine pyrophosphate
AKZO AMERICA INC16 citations72
US4822916AApr 18, 1989
Preparation of diaryl sulfones
AKZO AMERICA INC8 citations67
US4910240AMar 20, 1990
Thermally stable diphosphonate-type flame retardant additive for plastics
AKZO AMERICA INC5 citations62
AKZO NOBEL NV
4 patentsUS5391816AFeb 21, 1995
Formation of 1-phenylvinyl-1-phosphonic acid
AKZO NOBEL NV5 citations61
US6630539B1Oct 7, 2003
Neopentylene 1-phenylvinyl phosphonate
AKZO NOBEL NV0 citations51
US5783730AJul 21, 1998
Formation of styrene phosphonic acid
AKZO NOBEL NV0 citations51
US6429329B1Aug 6, 2002
Synthesis of a hydrocarbylvinylphosphonic acid hydrocarbyl ester
AKZO NOBEL NV0 citations47
STAUFFER CHEMICAL CO
3 patentsUS4736052AApr 5, 1988
Purification of diaryl alkylphosphonate reaction mixture
STAUFFER CHEMICAL CO14 citations68
US4596598AJun 24, 1986
Herbicidal esters of 2-bromo-4-methylimidazole-5-carboxylic acid
STAUFFER CHEMICAL CO3 citations62
US4595400AJun 17, 1986
Herbicidal esters of 2-bromo-4-methylimidazole-5-carboxylic acid
STAUFFER CHEMICAL CO4 citations62