Inventor
ORVIK JON A
US22 patents
⚠️ This page may combine multiple inventors who share the name “ORVIK JON A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DOW CHEMICAL CO
14 patentsUS4766219AAug 23, 1988
Preparation of 2-cyano-6-chloropyridine compounds
DOW CHEMICAL CO22 citations80
US4499276AFeb 12, 1985
Reduction of trichloromethylpyridines to dichloromethylpyridines
DOW CHEMICAL CO11 citations73
US4118373AOct 3, 1978
Preparation of urethane elastomers from epoxy resin, polyols and polyisocyanates using a catalyst composition of an organometal salt with either nitrogen or phosphorus compounds
DOW CHEMICAL CO9 citations73
US5106984AApr 21, 1992
2-hydrocarbyl-3,6-dichloropyridines and their preparation
DOW CHEMICAL CO14 citations72
US4499277AFeb 12, 1985
Reduction of trichloromethylpyridines to dichloromethylpyridines
DOW CHEMICAL CO7 citations65
US4739070AApr 19, 1988
Preparation of substituted (dichloromethyl)pyridines
DOW CHEMICAL CO3 citations62
US4713460ADec 15, 1987
2,3-bis-(poly)(chloromethyl)pyridines
DOW CHEMICAL CO5 citations62
US4594422AJun 10, 1986
Selective halogenation of 6-hydroxy picoline derivatives
DOW CHEMICAL CO4 citations62
US4327220AApr 27, 1982
Process for reducing picoline derivatives using copper catalyst
DOW CHEMICAL CO6 citations62
US4275212AJun 23, 1981
Method of preparing pyridinyloxyphenols and derivatives
DOW CHEMICAL CO6 citations62
US4257899AMar 24, 1981
Method for removing chloropicrin from an aqueous medium
DOW CHEMICAL CO4 citations62
US4140847AFeb 20, 1979
Polymers of oxetane-spiro-cyclic polyethers
DOW CHEMICAL CO5 citations61
US4705859ANov 10, 1987
Polychloropyridine production from polychloro-2,3-lutidines
DOW CHEMICAL CO1 citations51
US5084576AJan 28, 1992
2-hydrocarbyl-3,6-dichloropyridine compounds
DOW CHEMICAL CO0 citations50
DOWELANCO
8 patentsUS5012017AApr 30, 1991
Phenoxyphenoxypropionates, intermediates thereof and methods of preparation
DOWELANCO7 citations73
US4988812AJan 29, 1991
Aqueous process for the preparation of 5-methyl-n-(aryl)-1,2,4-triazolo(1,5-A)pyrimidine-2-sulfonamides
DOWELANCO11 citations71
US5488109AJan 30, 1996
5-alkoxy[1,2,4]triazolo[1,5-c]pyrimidine-2(3H)--thione compounds and their use in the preparation of and 2-chlorosulfonyl-5-alkoxy[1,2,4]triazolo[1,5-c]-pyrimidine compounds
DOWELANCO6 citations70
US5480991AJan 2, 1996
2-Alkoxy-4-hydroazinopyrimidine compounds and their use in the preparation of 5-alkoxy-1,2,4-triazolo[4,3-c]pyrimidine-3(2H)-thione compounds
DOWELANCO4 citations59
US5552546ASep 3, 1996
Process for the preparation of 2-ethoxy-4,6-dihydroxypyrimidine
DOWELANCO3 citations55
US5189210AFeb 23, 1993
Process for the preparation of 3- and/or 5-substituted anthranilic acids
DOWELANCO1 citations51
US5563269AOct 8, 1996
2-alkoxy-4-hydrazinopyrimidine compounds and their use in the preparation of 5-alkoxy-1,2,4-triazolo(4,3-C)-pyrimidine-3 (2H)-thione compounds
DOWELANCO1 citations49
US5461153AOct 24, 1995
2-alkoxy-4-hydrazinopyrimidine compounds
DOWELANCO1 citations49