Inventor
SIKKENGA DAVID L
US32 patents
⚠️ This page may combine multiple inventors who share the name “SIKKENGA DAVID L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMOCO CORP
23 patentsUS5292934AMar 8, 1994
Method for preparing aromatic carboxylic acids
AMOCO CORP114 citations96
US5284987AFeb 8, 1994
Preparation of a dimethyltetralin in a distillation reactor
AMOCO CORP62 citations95
US5256817AOct 26, 1993
Method for purifying a naphthalenedicarboxylic acid
AMOCO CORP29 citations92
US4999326AMar 12, 1991
Palladium catalyst reactivation
AMOCO CORP38 citations92
US4891467AJan 2, 1990
Selective synthesis of pseudocumene and durene
AMOCO CORP46 citations92
US5473102ADec 5, 1995
Process for recovery of aromatic acid and dihydric alcohol from waste polyester resins
AMOCO CORP20 citations88
US5770764AJun 23, 1998
Process for preparing purified aromatic polycarboxylic acids
AMOCO CORP17 citations82
US5563294AOct 8, 1996
Process for preparing purified 2,6-naphthalenedicarboxylic acid
AMOCO CORP15 citations81
US4950825AAug 21, 1990
Preparation of a dimethyltetralin
AMOCO CORP21 citations80
US4990717AFeb 5, 1991
Monoalkenylation of alkylbenzenes in a fixed catalyst bed
AMOCO CORP10 citations74
US4725570AFeb 16, 1988
Post-treatment of AMS-1B crystalline borosilicate molecular sieve-based catalyst compositions
AMOCO CORP14 citations74
US5118892AJun 2, 1992
Preparation of a dimethylnaphthalene
AMOCO CORP8 citations73
US5034561AJul 23, 1991
Catalytic alkenylbenzene cyclization
AMOCO CORP17 citations73
US5030781AJul 9, 1991
Preparation of a dimethyltetralin
AMOCO CORP15 citations73
US5012024AApr 30, 1991
Preparation of a dimethylnaphthalene
AMOCO CORP13 citations73
US5728870AMar 17, 1998
Process for preparing purified 2,6-naphthalenedicarboxylic acid
AMOCO CORP11 citations72
US5629446AMay 13, 1997
Process for preparing purified 2,6-naphthalenedicarboxylic acid
AMOCO CORP5 citations72
US5401892AMar 28, 1995
Preparation of a dimethyltetralin by cyclizing an orthotolylpentene phenylhexene using an ultra-stable crystalline aluminosilicate molecular sieve y-zeolite
AMOCO CORP16 citations72
US5350874ASep 27, 1994
Process for preparing diesters of naphthalenedicarboxylic acids
AMOCO CORP9 citations72
US5073670ADec 17, 1991
Preparation of a dimethyltetralin
AMOCO CORP9 citations72
US4642301AFeb 10, 1987
Halided alumina catalyst
AMOCO CORP5 citations63
US4777310AOct 11, 1988
Catalyzed olefin equlibration and separation of the equilibrated products
AMOCO CORP1 citations51
US4777311AOct 11, 1988
Process for converting C5 olefins to aromatic hydrocarbons and lighter olefins
AMOCO CORP1 citations49
BP CORP NORTH AMERICA INC
5 patentsUS6562997B2May 13, 2003
Production of high purity aromatic carboxylic acid by oxidation in benzoic acid and water solvent
BP CORP NORTH AMERICA INC151 citations96
US6852879B2Feb 8, 2005
Method of removing iron oxide deposits from the surface of titanium components
BP CORP NORTH AMERICA INC11 citations70
US7005011B2Feb 28, 2006
Method of removing iron oxide deposits from the surface of titanium components
BP CORP NORTH AMERICA INC0 citations48
US7485746B2Feb 3, 2009
Staged countercurrent oxidation
BP CORP NORTH AMERICA INC1 citations44
US7465824B2Dec 16, 2008
Process for the production of high purity aromatic carboxylic acids using a benzoic acid and water solvent for oxidation and purification
BP CORP NORTH AMERICA INC0 citations40
STANDARD OIL CO INDIANA
4 patentsUS4503282AMar 5, 1985
Process to convert linear alkenes selectively using high concentrations of AMS-1B crystalline borosilicate catalyst
STANDARD OIL CO INDIANA25 citations82
US4433190AFeb 21, 1984
Process to convert linear alkanes
STANDARD OIL CO INDIANA22 citations80
US4550091AOct 29, 1985
Non-aqueous exchange of acidic sites on molecular sieves
STANDARD OIL CO INDIANA7 citations74
US4435311AMar 6, 1984
Continuous reactivation of AMS-1B-containing catalyst systems
STANDARD OIL CO INDIANA14 citations74