P

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 patents
US4880903ANov 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 patent

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