Inventor
DRENT EIT
NL214 patents
⚠️ This page may combine multiple inventors who share the name “DRENT EIT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHELL OIL CO
49 patentsUS4880903ANov 14, 1989
Polyketone from carbon monoxide and mixture of olefins
SHELL OIL CO133 citations98
US4835250AMay 30, 1989
Catalytic preparation of polyketone from carbon monoxide and olefin
SHELL OIL CO95 citations96
US4818810AApr 4, 1989
Catalytic process for the preparation of polyketones from carbon monoxide and ethylenically unsaturated hydrocarbon
SHELL OIL CO78 citations96
US5359081AOct 25, 1994
Carbonylation of epoxides
SHELL OIL CO53 citations95
US5310948AMay 10, 1994
Carbonylation of epoxides
SHELL OIL CO61 citations95
US4868282ASep 19, 1989
Polyketone preparation from regulated quotient mixture of olefins
SHELL OIL CO58 citations95
US5210280AMay 11, 1993
Process for the preparation of alkanedioic acid derivatives
SHELL OIL CO23 citations93
US5149868ASep 22, 1992
Carbonylation process
SHELL OIL CO28 citations93
US5028734AJul 2, 1991
Process for the selective preparation of alkenecarboxylic acid derivatives
SHELL OIL CO24 citations93
US4960926AOct 2, 1990
Process for the carbonylation of olefinically unsaturated compounds with a palladium catalyst
SHELL OIL CO28 citations93
US4788279ANov 29, 1988
Catalyst compositions and processes for polymerizing carbon monoxide and olefinically unsaturated hydrocarbons
SHELL OIL CO30 citations93
US4634793AJan 6, 1987
Process for the dimerization of olefins
SHELL OIL CO28 citations93
US4599476AJul 8, 1986
Process for the preparation of dimerization products from olefins
SHELL OIL CO28 citations93
US7026473B2Apr 11, 2006
Process for the carbonylation of pentenenitrile
SHELL OIL CO17 citations92
US6743911B2Jun 1, 2004
Process for the carbonylation of pentenenitrile
SHELL OIL CO19 citations92
US6706912B2Mar 16, 2004
Process for the carbonylation of ethylenically unsaturated compounds
SHELL OIL CO23 citations92
US6080898AJun 27, 2000
Hydrogenolysis of glycerol
SHELL OIL CO47 citations92
US5719313AFeb 17, 1998
Carbonylation catalyst system and a process for the carbonylation of acetylenically unsaturated compounds
SHELL OIL CO23 citations92
US5352765AOct 4, 1994
Preparation of copolymers of carbon monoxide and olefinically unsaturated compounds
SHELL OIL CO25 citations92
US5350876ASep 27, 1994
Carbonylation of conjugated dienes
SHELL OIL CO20 citations92
US5179225AJan 12, 1993
Carbonylation catalyst system
SHELL OIL CO29 citations92
US5177253AJan 5, 1993
Process for the preparation of alpha,beta-olefinically unsaturated compounds
SHELL OIL CO29 citations92
US5175244ADec 29, 1992
Polymerization of co/olefin with diphosphine containing heterocyclic/alkyl substituents
SHELL OIL CO24 citations92
US5166116ANov 24, 1992
Carbonylation catalyst system
SHELL OIL CO27 citations92
US5158921AOct 27, 1992
Carbonylation catalyst and process
SHELL OIL CO25 citations92
US5103043AApr 7, 1992
Carbonylation catalyst system
SHELL OIL CO22 citations92
US5099062AMar 24, 1992
Carbonylation catalyst and process
SHELL OIL CO22 citations92
US5028576AJul 2, 1991
Carbonylation catalyst system
SHELL OIL CO35 citations92
US4868221ASep 19, 1989
Process for the production of methanol and a composition suitable for use as a catalyst in said process
SHELL OIL CO24 citations92
US4474978AOct 2, 1984
Preparation of carbamates
SHELL OIL CO50 citations92
US7273959B2Sep 25, 2007
Catalytic trimerization of olefinic monomers
SHELL OIL CO19 citations91
US6376723B2Apr 23, 2002
Process for the carbonylation of formaldehyde
SHELL OIL CO28 citations90
US5436356AJul 25, 1995
Carbonylation process
SHELL OIL CO22 citations90
US4786443ANov 22, 1988
Process for the carbonylation of olefinically unsaturated compounds with a palladium catalyst
SHELL OIL CO43 citations90
US6156934ADec 5, 2000
Diphosphines
SHELL OIL CO32 citations89
US4249031AFeb 3, 1981
Process for the preparation of a hydrocarbon mixture
SHELL OIL CO48 citations89
US5994591ANov 30, 1999
Hydroformylation process
SHELL OIL CO21 citations87
US5488174AJan 30, 1996
Hydroformylation process
SHELL OIL CO24 citations87
US6737542B1May 18, 2004
Process for the carbonylation of conjugated dienes
SHELL OIL CO19 citations84
US6103927AAug 15, 2000
Process for the carbonylation of ethylenically unsaturated compounds
SHELL OIL CO19 citations84
US6156936ADec 5, 2000
Hydroformylation of olefin feeds containing dienes
SHELL OIL CO17 citations82
US5369074ANov 29, 1994
Catalyst composition for polymerizing carbon monoxide and ethylenically unsaturated hydrocarbons
SHELL OIL CO17 citations82
US4927892AMay 22, 1990
Process for the preparation of functionalized polymers
SHELL OIL CO16 citations82
US4894435AJan 16, 1990
Polymerization of olefin/carbon monoxide with non-transition metal salt, bidentate p ligand and carboxylic acid ester
SHELL OIL CO18 citations82
US4888361ADec 19, 1989
Process for the production of methanol and catalyst composition for said process
SHELL OIL CO21 citations82
US4873267AOct 10, 1989
Process for the production of methanol and a composition suitable for use as a catalyst in said process
SHELL OIL CO22 citations82
US4786714ANov 22, 1988
Catalytic process for polymerizing carbon monoxide and olefin(s) with nitrogen bidentate ligand
SHELL OIL CO22 citations82
US4740625AApr 26, 1988
Catalyst compositions and a process for polymerizing carbon monoxide and olefins
SHELL OIL CO20 citations82
US4739110AApr 19, 1988
Process for the carbonylation of allenically unsaturated compounds
SHELL OIL CO22 citations82
DSM NV
1 patentShowing the top 50 of 214 patents by PatentIndex Score.