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Inventor

ZAJACEK JOHN G

US48 patents
⚠️ This page may combine multiple inventors who share the name “ZAJACEK JOHN G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ARCO CHEM TECH

33 patents
US5646314AJul 8, 1997

Process for titanium silicalite-catalyzed epoxidation

ARCO CHEM TECH71 citations96
US5374747ADec 20, 1994

Epoxidation process and catalyst therefore

ARCO CHEM TECH76 citations96
US5262550ANov 16, 1993

Epoxidation process using titanium-rich silicalite catalysts

ARCO CHEM TECH52 citations96
US5214168AMay 25, 1993

Integrated process for epoxide production

ARCO CHEM TECH95 citations96
US5688484ANov 18, 1997

Non-hydrothermal method of making a titanium-containing zeolite

ARCO CHEM TECH31 citations93
US5554356ASep 10, 1996

Method of making essentially silicic zeolite beta

ARCO CHEM TECH22 citations93
US5474754ADec 12, 1995

Preparation of an aluminosilicotitanate isomorphous with zeolite beta

ARCO CHEM TECH27 citations93
US5166372ANov 24, 1992

Epoxidation process

ARCO CHEM TECH54 citations93
US5741749AApr 21, 1998

Regeneration of a titanium-containing molecular sieve

ARCO CHEM TECH19 citations92
US5695736ADec 9, 1997

Tiatanium containing molecular sieve having a zelite beta structure

ARCO CHEM TECH29 citations92
US5681789AOct 28, 1997

Activation of as-synthesized titanium-containing zeolites

ARCO CHEM TECH35 citations92
US5523426AJun 4, 1996

Integrated process for epoxidation

ARCO CHEM TECH48 citations92
US5412122AMay 2, 1995

Epoxidation process

ARCO CHEM TECH48 citations92
US5384418AJan 24, 1995

Integrated process for epoxide production

ARCO CHEM TECH49 citations92
US5621122AApr 15, 1997

Epoxidation process

ARCO CHEM TECH23 citations91
US5463090AOct 31, 1995

Integrated process for epoxide production

ARCO CHEM TECH27 citations91
US6127584AOct 3, 2000

Butanediol production

ARCO CHEM TECH18 citations84
US5684170ANov 4, 1997

Epoxidation process

ARCO CHEM TECH15 citations82
US5753576AMay 19, 1998

Regeneration of a titanium-containing molecular sieve

ARCO CHEM TECH13 citations74
US5618512AApr 8, 1997

Niobium-containing zeolites

ARCO CHEM TECH8 citations74
US5599987AFeb 4, 1997

Integrated process for cyclohexanone oxime production

ARCO CHEM TECH16 citations74
US5508019AApr 16, 1996

Dealumination of aluminosilicates

ARCO CHEM TECH11 citations74
US5241118AAug 31, 1993

Process for the preparation of trisubstituted ureas by reductive carbonylation

ARCO CHEM TECH11 citations74
US5166371ANov 24, 1992

Asymmetric epoxidation using a chiral hydroperoxide

ARCO CHEM TECH6 citations74
US4996359AFeb 26, 1991

Process for the preparation of aromatic bis dialkyl ureas

ARCO CHEM TECH15 citations74
US5451701ASep 19, 1995

Integrated process for cyclohexanone oxime production

ARCO CHEM TECH11 citations73
US5527520AJun 18, 1996

Method of making a titanium-containing molecular sieve

ARCO CHEM TECH12 citations72
US5693834ADec 2, 1997

Integrated process for epoxidation

ARCO CHEM TECH2 citations63
US5679749AOct 21, 1997

Olefin epoxidation using niobium-containing zeolites

ARCO CHEM TECH4 citations63
US5581000ADec 3, 1996

Sulfonic acid-substituted anthrahydroquinone alkylammonium salts

ARCO CHEM TECH2 citations61
US5126476AJun 30, 1992

Process for the preparation of aryl-, heteroaryl-, or cycloalkyl-substituted alkyl urethanes and isocyanates

ARCO CHEM TECH1 citations52
US5663384ASep 2, 1997

Asymetric epoxidation using a titanium-containing zeolite and a chiral hydroperoxide

ARCO CHEM TECH1 citations51
US5540906AJul 30, 1996

Hydrogen peroxide process

ARCO CHEM TECH1 citations51

ATLANTIC RICHFIELD CO

14 patents
US3962302AJun 8, 1976

Production of isocyanates from esters of carbamic acids (urethanes)

ATLANTIC RICHFIELD CO45 citations91
US4146727AMar 27, 1979

Process for the preparation of diphenylmethane mono and dicarbamates and polymethylene polyphenyl carbamates by the acid rearrangement of an (alkoxycarbonyl) phenylaminomethylphenyl compound

ATLANTIC RICHFIELD CO24 citations82
US3993685ANov 23, 1976

Process for the production of urethanes

ATLANTIC RICHFIELD CO29 citations81
US3956360AMay 11, 1976

Process for the manufacture of urethanes

ATLANTIC RICHFIELD CO20 citations80
US4130633ADec 19, 1978

Removal of selenium from urethane solutions

ATLANTIC RICHFIELD CO9 citations73
US4055630AOct 25, 1977

Process for the recovery of selenium from urethanes containing selenium or compounds thereof

ATLANTIC RICHFIELD CO15 citations73
US3936484AFeb 3, 1976

Production of isocyanates from substituted ureas

ATLANTIC RICHFIELD CO13 citations72
US3987115AOct 19, 1976

Production of hydroperoxides

ATLANTIC RICHFIELD CO7 citations69
US4041068AAug 9, 1977

Synthesis of oxalate esters by catalytic oxidative carbonylation of borate esters

ATLANTIC RICHFIELD CO4 citations63
US4041067AAug 9, 1977

Synthesis of oxalate esters by the oxidative carbonylation of amide acetals

ATLANTIC RICHFIELD CO2 citations63
US4038376AJul 26, 1977

Process for the recovery of selenium from urethanes containing selenium or compounds thereof

ATLANTIC RICHFIELD CO5 citations62
US4052454AOct 4, 1977

Process for the manufacture of ureas

ATLANTIC RICHFIELD CO5 citations61
US3983143ASep 28, 1976

Epoxidation of olefins with less stable organic hydroperoxides by using an alcohol stabilizing agent

ATLANTIC RICHFIELD CO6 citations57
US3989755ANov 2, 1976

Production of oximes by the reaction of carbon monoxide with nitrocompounds

ATLANTIC RICHFIELD CO0 citations40

ZAJACEK JOHN G

1 patent