Inventor · disambiguated record
David L. Sikkenga
Also filed as: SIKKENGA DAVID · SIKKENGA DAVID L · SIKKENGA DAVID LEE
36 granted patents·2 pending applications·759 citations·filing 1982–2018
98Inventor score
Files withAMOCO CORP24BP CORP NORTH AMERICA INC6STANDARD OIL CO INDIANA4SIKKENGA DAVID LEE2BP AMOCO CORP1
Top patents by PatentIndex Score
38 records- 0197US5292934AMethod for preparing aromatic carboxylic acidsAMOCO CORP·Filed 1992·Granted Mar 8, 1994·114 cites·23 claims
- 0296US6562997B2Production of high purity aromatic carboxylic acid by oxidation in benzoic acid and water solventBP CORP NORTH AMERICA INC·Filed 2001·Granted May 13, 2003·151 cites·44 claims
- 0395US4891467ASelective synthesis of pseudocumene and dureneAMOCO CORP·Filed 1985·Granted Jan 2, 1990·46 cites·25 claims
- 0494US5284987APreparation of a dimethyltetralin in a distillation reactorAMOCO CORP·Filed 1992·Granted Feb 8, 1994·62 cites·8 claims
- 0589US4503282AProcess to convert linear alkenes selectively using high concentrations of AMS-1B crystalline borosilicate catalystSTANDARD OIL CO INDIANA·Filed 1982·Granted Mar 5, 1985·25 cites·21 claims
- 0688US9643945B2Process for the preparation of 2,5-furan-dicarboxylic acidFURANIX TECHNOLOGIES BV·Filed 2014·Granted May 9, 2017·8 cites·34 claims
- 0787US5256817AMethod for purifying a naphthalenedicarboxylic acidAMOCO CORP·Filed 1992·Granted Oct 26, 1993·29 cites·22 claims
- 0885US4433190AProcess to convert linear alkanesSTANDARD OIL CO INDIANA·Filed 1982·Granted Feb 21, 1984·22 cites·28 claims
- 0983US4950825APreparation of a dimethyltetralinAMOCO CORP·Filed 1989·Granted Aug 21, 1990·21 cites·49 claims
- 1081US5563294AProcess for preparing purified 2,6-naphthalenedicarboxylic acidAMOCO CORP·Filed 1994·Granted Oct 8, 1996·15 cites·16 claims
- 1180US6852879B2Method of removing iron oxide deposits from the surface of titanium componentsBP CORP NORTH AMERICA INC·Filed 2002·Granted Feb 8, 2005·11 cites·10 claims
- 1278US5473102AProcess for recovery of aromatic acid and dihydric alcohol from waste polyester resinsAMOCO CORP·Filed 1994·Granted Dec 5, 1995·20 cites·20 claims
- 1378US5034561ACatalytic alkenylbenzene cyclizationAMOCO CORP·Filed 1990·Granted Jul 23, 1991·17 cites·28 claims
- 1477US5012024APreparation of a dimethylnaphthaleneAMOCO CORP·Filed 1989·Granted Apr 30, 1991·13 cites·29 claims
- 1577US4999326APalladium catalyst reactivationAMOCO CORP·Filed 1990·Granted Mar 12, 1991·38 cites·17 claims
- 1676US5401892APreparation of a dimethyltetralin by cyclizing an orthotolylpentene phenylhexene using an ultra-stable crystalline aluminosilicate molecular sieve y-zeoliteAMOCO CORP·Filed 1993·Granted Mar 28, 1995·16 cites·28 claims
- 1775US5770764AProcess for preparing purified aromatic polycarboxylic acidsAMOCO CORP·Filed 1997·Granted Jun 23, 1998·17 cites·20 claims
- 1875US5030781APreparation of a dimethyltetralinAMOCO CORP·Filed 1990·Granted Jul 9, 1991·15 cites·16 claims
- 1975US4962260APreparation of a dimethylnaphthaleneAMOCO CORP·Filed 1989·Granted Oct 9, 1990·12 cites·15 claims
- 2073US5728870AProcess for preparing purified 2,6-naphthalenedicarboxylic acidAMOCO CORP·Filed 1996·Granted Mar 17, 1998·11 cites·16 claims
- 2172US4990717AMonoalkenylation of alkylbenzenes in a fixed catalyst bedAMOCO CORP·Filed 1989·Granted Feb 5, 1991·10 cites·21 claims
- 2269US6255525B1Process for preparing purified carboxylic acidsBP AMOCO CORP·Filed 1998·Granted Jul 3, 2001·12 cites·25 claims
- 2369US4435311AContinuous reactivation of AMS-1B-containing catalyst systemsSTANDARD OIL CO INDIANA·Filed 1982·Granted Mar 6, 1984·14 cites·18 claims
- 2465US5350874AProcess for preparing diesters of naphthalenedicarboxylic acidsAMOCO CORP·Filed 1992·Granted Sep 27, 1994·9 cites·19 claims
- 2564US5118892APreparation of a dimethylnaphthaleneAMOCO CORP·Filed 1990·Granted Jun 2, 1992·8 cites·33 claims
- 2663US5073670APreparation of a dimethyltetralinAMOCO CORP·Filed 1990·Granted Dec 17, 1991·9 cites·52 claims
- 2759US5629446AProcess for preparing purified 2,6-naphthalenedicarboxylic acidAMOCO CORP·Filed 1995·Granted May 13, 1997·5 cites·13 claims
- 2858US4725570APost-treatment of AMS-1B crystalline borosilicate molecular sieve-based catalyst compositionsAMOCO CORP·Filed 1985·Granted Feb 16, 1988·14 cites·20 claims
- 2958US4642301AHalided alumina catalystAMOCO CORP·Filed 1985·Granted Feb 10, 1987·5 cites·7 claims
- 3052US2009171113A1Ethanolysis of PET to Form DET and Oxidation ThereofBP CORP NORTH AMERICA INC·Filed 2006·Application pending·0 cites
- 3149US7485746B2Staged countercurrent oxidationBP CORP NORTH AMERICA INC·Filed 2003·Granted Feb 3, 2009·1 cites·24 claims
- 3246US10259769B2Conversion of polystyrene to benzoic acidSIKKENGA DAVID LEE·Filed 2017·Granted Apr 16, 2019·0 cites·18 claims
- 3346US4550091ANon-aqueous exchange of acidic sites on molecular sievesSTANDARD OIL CO INDIANA·Filed 1984·Granted Oct 29, 1985·7 cites·9 claims
- 3445US7005011B2Method of removing iron oxide deposits from the surface of titanium componentsBP CORP NORTH AMERICA INC·Filed 2004·Granted Feb 28, 2006·0 cites·15 claims
- 3539US7465824B2Process for the production of high purity aromatic carboxylic acids using a benzoic acid and water solvent for oxidation and purificationBP CORP NORTH AMERICA INC·Filed 2007·Granted Dec 16, 2008·0 cites·18 claims
- 3639US2020140367A1Conversion of polystyrene to benzoic acidSIKKENGA DAVID LEE·Filed 2018·Application pending·0 cites
- 3737US4777310ACatalyzed olefin equlibration and separation of the equilibrated productsAMOCO CORP·Filed 1987·Granted Oct 11, 1988·1 cites·9 claims
- 3833US4777311AProcess for converting C5 olefins to aromatic hydrocarbons and lighter olefinsAMOCO CORP·Filed 1987·Granted Oct 11, 1988·1 cites·11 claims
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