Inventor · disambiguated record
John G. Zajacek
Also filed as: ZAJACEK JOHN G
48 granted patents·1,040 citations·filing 1971–1999
99Inventor score
Top patents by PatentIndex Score
48 records- 0196US5374747AEpoxidation process and catalyst thereforeARCO CHEM TECH·Filed 1993·Granted Dec 20, 1994·76 cites·9 claims
- 0294US5646314AProcess for titanium silicalite-catalyzed epoxidationARCO CHEM TECH·Filed 1995·Granted Jul 8, 1997·71 cites·18 claims
- 0394US5214168AIntegrated process for epoxide productionARCO CHEM TECH·Filed 1992·Granted May 25, 1993·95 cites·28 claims
- 0494US3962302AProduction of isocyanates from esters of carbamic acids (urethanes)ATLANTIC RICHFIELD CO·Filed 1975·Granted Jun 8, 1976·45 cites·16 claims
- 0593US5262550AEpoxidation process using titanium-rich silicalite catalystsARCO CHEM TECH·Filed 1992·Granted Nov 16, 1993·52 cites·24 claims
- 0693US3993685AProcess for the production of urethanesATLANTIC RICHFIELD CO·Filed 1974·Granted Nov 23, 1976·29 cites·14 claims
- 0790US4146727AProcess for the preparation of diphenylmethane mono and dicarbamates and polymethylene polyphenyl carbamates by the acid rearrangement of an (alkoxycarbonyl) phenylaminomethylphenyl compoundATLANTIC RICHFIELD CO·Filed 1978·Granted Mar 27, 1979·24 cites·19 claims
- 0886US5166372AEpoxidation processARCO CHEM TECH·Filed 1992·Granted Nov 24, 1992·54 cites·29 claims
- 0985US5384418AIntegrated process for epoxide productionARCO CHEM TECH·Filed 1994·Granted Jan 24, 1995·49 cites·12 claims
- 1084US5412122AEpoxidation processARCO CHEM TECH·Filed 1993·Granted May 2, 1995·48 cites·15 claims
- 1183US5523426AIntegrated process for epoxidationARCO CHEM TECH·Filed 1995·Granted Jun 4, 1996·48 cites·19 claims
- 1282US5621122AEpoxidation processARCO CHEM TECH·Filed 1995·Granted Apr 15, 1997·23 cites·19 claims
- 1380US4996359AProcess for the preparation of aromatic bis dialkyl ureasARCO CHEM TECH·Filed 1988·Granted Feb 26, 1991·15 cites·11 claims
- 1480US3936484AProduction of isocyanates from substituted ureasATLANTIC RICHFIELD CO·Filed 1974·Granted Feb 3, 1976·13 cites·12 claims
- 1577US5695736ATiatanium containing molecular sieve having a zelite beta structureARCO CHEM TECH·Filed 1996·Granted Dec 9, 1997·29 cites·6 claims
- 1676US3956360AProcess for the manufacture of urethanesATLANTIC RICHFIELD CO·Filed 1974·Granted May 11, 1976·20 cites·9 claims
- 1773US5688484ANon-hydrothermal method of making a titanium-containing zeoliteARCO CHEM TECH·Filed 1996·Granted Nov 18, 1997·31 cites·22 claims
- 1873US5681789AActivation of as-synthesized titanium-containing zeolitesARCO CHEM TECH·Filed 1996·Granted Oct 28, 1997·35 cites·12 claims
- 1972US5463090AIntegrated process for epoxide productionARCO CHEM TECH·Filed 1994·Granted Oct 31, 1995·27 cites·24 claims
- 2071US5527520AMethod of making a titanium-containing molecular sieveARCO CHEM TECH·Filed 1995·Granted Jun 18, 1996·12 cites·23 claims
- 2170US5451701AIntegrated process for cyclohexanone oxime productionARCO CHEM TECH·Filed 1994·Granted Sep 19, 1995·11 cites·12 claims
- 2270US5241118AProcess for the preparation of trisubstituted ureas by reductive carbonylationARCO CHEM TECH·Filed 1991·Granted Aug 31, 1993·11 cites·25 claims
- 2370US4055630AProcess for the recovery of selenium from urethanes containing selenium or compounds thereofATLANTIC RICHFIELD CO·Filed 1976·Granted Oct 25, 1977·15 cites·6 claims
- 2467US6127584AButanediol productionARCO CHEM TECH·Filed 1999·Granted Oct 3, 2000·18 cites·4 claims
- 2567US5474754APreparation of an aluminosilicotitanate isomorphous with zeolite betaARCO CHEM TECH·Filed 1994·Granted Dec 12, 1995·27 cites·15 claims
- 2666US5741749ARegeneration of a titanium-containing molecular sieveARCO CHEM TECH·Filed 1996·Granted Apr 21, 1998·19 cites·13 claims
- 2764US3987115AProduction of hydroperoxidesATLANTIC RICHFIELD CO·Filed 1975·Granted Oct 19, 1976·7 cites·4 claims
- 2864US3983143AEpoxidation of olefins with less stable organic hydroperoxides by using an alcohol stabilizing agentATLANTIC RICHFIELD CO·Filed 1974·Granted Sep 28, 1976·6 cites·6 claims
- 2961US5684170AEpoxidation processARCO CHEM TECH·Filed 1996·Granted Nov 4, 1997·15 cites·13 claims
- 3060US5599987AIntegrated process for cyclohexanone oxime productionARCO CHEM TECH·Filed 1995·Granted Feb 4, 1997·16 cites·15 claims
- 3160US4052454AProcess for the manufacture of ureasATLANTIC RICHFIELD CO·Filed 1976·Granted Oct 4, 1977·5 cites·12 claims
- 3258US5753576ARegeneration of a titanium-containing molecular sieveARCO CHEM TECH·Filed 1995·Granted May 19, 1998·13 cites·16 claims
- 3358US5554356AMethod of making essentially silicic zeolite betaARCO CHEM TECH·Filed 1995·Granted Sep 10, 1996·22 cites·20 claims
- 3457US4041068ASynthesis of oxalate esters by catalytic oxidative carbonylation of borate estersATLANTIC RICHFIELD CO·Filed 1976·Granted Aug 9, 1977·4 cites·27 claims
- 3555US5166371AAsymmetric epoxidation using a chiral hydroperoxideARCO CHEM TECH·Filed 1991·Granted Nov 24, 1992·6 cites·31 claims
- 3652US4130633ARemoval of selenium from urethane solutionsATLANTIC RICHFIELD CO·Filed 1977·Granted Dec 19, 1978·9 cites·19 claims
- 3750US5508019ADealumination of aluminosilicatesARCO CHEM TECH·Filed 1994·Granted Apr 16, 1996·11 cites·15 claims
- 3845US5618512ANiobium-containing zeolitesARCO CHEM TECH·Filed 1995·Granted Apr 8, 1997·8 cites·19 claims
- 3945US4041067ASynthesis of oxalate esters by the oxidative carbonylation of amide acetalsATLANTIC RICHFIELD CO·Filed 1976·Granted Aug 9, 1977·2 cites·23 claims
- 4044US4038376AProcess for the recovery of selenium from urethanes containing selenium or compounds thereofATLANTIC RICHFIELD CO·Filed 1975·Granted Jul 26, 1977·5 cites·9 claims
- 4140US3949003AProduction of hydroperoxidesZAJACEK JOHN G·Filed 1971·Granted Apr 6, 1976·3 cites·12 claims
- 4239US5663384AAsymetric epoxidation using a titanium-containing zeolite and a chiral hydroperoxideARCO CHEM TECH·Filed 1996·Granted Sep 2, 1997·1 cites·17 claims
- 4339US5540906AHydrogen peroxide processARCO CHEM TECH·Filed 1994·Granted Jul 30, 1996·1 cites·12 claims
- 4438US5679749AOlefin epoxidation using niobium-containing zeolitesARCO CHEM TECH·Filed 1997·Granted Oct 21, 1997·4 cites·15 claims
- 4537US5126476AProcess for the preparation of aryl-, heteroaryl-, or cycloalkyl-substituted alkyl urethanes and isocyanatesARCO CHEM TECH·Filed 1991·Granted Jun 30, 1992·1 cites·26 claims
- 4635US5693834AIntegrated process for epoxidationARCO CHEM TECH·Filed 1995·Granted Dec 2, 1997·2 cites·18 claims
- 4732US5581000ASulfonic acid-substituted anthrahydroquinone alkylammonium saltsARCO CHEM TECH·Filed 1995·Granted Dec 3, 1996·2 cites·5 claims
- 4828US3989755AProduction of oximes by the reaction of carbon monoxide with nitrocompoundsATLANTIC RICHFIELD CO·Filed 1975·Granted Nov 2, 1976·0 cites·20 claims
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