Inventor · disambiguated record
Eit Drent
Also filed as: DRENT EIT
214 granted patents·9 pending applications·2,376 citations·filing 1980–2010
99Inventor score
Top patents by PatentIndex Score
223 records- 0197US4880903APolyketone from carbon monoxide and mixture of olefinsSHELL OIL CO·Filed 1988·Granted Nov 14, 1989·133 cites·14 claims
- 0297US4835250ACatalytic preparation of polyketone from carbon monoxide and olefinSHELL OIL CO·Filed 1986·Granted May 30, 1989·95 cites·13 claims
- 0396US4818810ACatalytic process for the preparation of polyketones from carbon monoxide and ethylenically unsaturated hydrocarbonSHELL OIL CO·Filed 1985·Granted Apr 4, 1989·78 cites·10 claims
- 0494US5310948ACarbonylation of epoxidesSHELL OIL CO·Filed 1993·Granted May 10, 1994·61 cites·10 claims
- 0593US5359081ACarbonylation of epoxidesSHELL OIL CO·Filed 1994·Granted Oct 25, 1994·53 cites·5 claims
- 0693US4868282APolyketone preparation from regulated quotient mixture of olefinsSHELL OIL CO·Filed 1988·Granted Sep 19, 1989·58 cites·25 claims
- 0792US6080898AHydrogenolysis of glycerolSHELL OIL CO·Filed 1998·Granted Jun 27, 2000·47 cites·8 claims
- 0892US4249031AProcess for the preparation of a hydrocarbon mixtureSHELL OIL CO·Filed 1980·Granted Feb 3, 1981·48 cites·10 claims
- 0991US4786443AProcess for the carbonylation of olefinically unsaturated compounds with a palladium catalystSHELL OIL CO·Filed 1988·Granted Nov 22, 1988·43 cites·20 claims
- 1090US6706912B2Process for the carbonylation of ethylenically unsaturated compoundsSHELL OIL CO·Filed 2001·Granted Mar 16, 2004·23 cites·20 claims
- 1190US6376723B2Process for the carbonylation of formaldehydeSHELL OIL CO·Filed 2000·Granted Apr 23, 2002·28 cites·15 claims
- 1290US4960926AProcess for the carbonylation of olefinically unsaturated compounds with a palladium catalystSHELL OIL CO·Filed 1989·Granted Oct 2, 1990·28 cites·27 claims
- 1390US4634793AProcess for the dimerization of olefinsSHELL OIL CO·Filed 1985·Granted Jan 6, 1987·28 cites·22 claims
- 1490US4599476AProcess for the preparation of dimerization products from olefinsSHELL OIL CO·Filed 1985·Granted Jul 8, 1986·28 cites·16 claims
- 1589US4474978APreparation of carbamatesSHELL OIL CO·Filed 1983·Granted Oct 2, 1984·50 cites·17 claims
- 1688US6737542B1Process for the carbonylation of conjugated dienesSHELL OIL CO·Filed 2000·Granted May 18, 2004·19 cites·20 claims
- 1788US5028734AProcess for the selective preparation of alkenecarboxylic acid derivativesSHELL OIL CO·Filed 1989·Granted Jul 2, 1991·24 cites·25 claims
- 1887US5149868ACarbonylation processSHELL OIL CO·Filed 1991·Granted Sep 22, 1992·28 cites·17 claims
- 1987US5028576ACarbonylation catalyst systemSHELL OIL CO·Filed 1990·Granted Jul 2, 1991·35 cites·7 claims
- 2087US4788279ACatalyst compositions and processes for polymerizing carbon monoxide and olefinically unsaturated hydrocarbonsSHELL OIL CO·Filed 1986·Granted Nov 29, 1988·30 cites·49 claims
- 2186US4888361AProcess for the production of methanol and catalyst composition for said processSHELL OIL CO·Filed 1989·Granted Dec 19, 1989·21 cites·17 claims
- 2286US4739110AProcess for the carbonylation of allenically unsaturated compoundsSHELL OIL CO·Filed 1985·Granted Apr 19, 1988·22 cites·16 claims
- 2385US5210280AProcess for the preparation of alkanedioic acid derivativesSHELL OIL CO·Filed 1992·Granted May 11, 1993·23 cites·10 claims
- 2483US6835850B2Process for the carbonylation of a conjugated dieneDSM NV·Filed 2001·Granted Dec 28, 2004·25 cites·16 claims
- 2583US6743911B2Process for the carbonylation of pentenenitrileSHELL OIL CO·Filed 2001·Granted Jun 1, 2004·19 cites·12 claims
- 2683US5350876ACarbonylation of conjugated dienesSHELL OIL CO·Filed 1993·Granted Sep 27, 1994·20 cites·10 claims
- 2783US4940787AProcess for the carbonylation of acetylenic unsaturated compoundsSHELL OIL CO·Filed 1987·Granted Jul 10, 1990·18 cites·33 claims
- 2882US7026473B2Process for the carbonylation of pentenenitrileSHELL OIL CO·Filed 2004·Granted Apr 11, 2006·17 cites·20 claims
- 2982US5488174AHydroformylation processSHELL OIL CO·Filed 1994·Granted Jan 30, 1996·24 cites·24 claims
- 3080US4868221AProcess for the production of methanol and a composition suitable for use as a catalyst in said processSHELL OIL CO·Filed 1988·Granted Sep 19, 1989·24 cites·12 claims
- 3180US4739109AProcess for the carbonylation of acetylenically unsaturated compoundsSHELL OIL CO·Filed 1985·Granted Apr 19, 1988·15 cites·27 claims
- 3279US7273959B2Catalytic trimerization of olefinic monomersSHELL OIL CO·Filed 2004·Granted Sep 25, 2007·19 cites·18 claims
- 3379US6639091B2Bidentate ligand, catalyst system containing such ligand and a process for the carbonylation of ethylenically or acetylenically unsaturated compounds using such a catalyst systemSHELL OIL CO·Filed 2001·Granted Oct 28, 2003·13 cites·32 claims
- 3479US5352765APreparation of copolymers of carbon monoxide and olefinically unsaturated compoundsSHELL OIL CO·Filed 1993·Granted Oct 4, 1994·25 cites·10 claims
- 3579US4902822AProcess for the preparation of carboxylic acids or esters thereofSHELL OIL CO·Filed 1988·Granted Feb 20, 1990·12 cites·25 claims
- 3678US7858787B2Process for producing olefinsSHELL OIL CO·Filed 2007·Granted Dec 28, 2010·3 cites·10 claims
- 3778US4873267AProcess for the production of methanol and a composition suitable for use as a catalyst in said processSHELL OIL CO·Filed 1988·Granted Oct 10, 1989·22 cites·11 claims
- 3877US5175244APolymerization of co/olefin with diphosphine containing heterocyclic/alkyl substituentsSHELL OIL CO·Filed 1991·Granted Dec 29, 1992·24 cites·14 claims
- 3977US4786714ACatalytic process for polymerizing carbon monoxide and olefin(s) with nitrogen bidentate ligandSHELL OIL CO·Filed 1986·Granted Nov 22, 1988·22 cites·40 claims
- 4076US7511178B2Process of preparing ethylene glycolSHELL OIL CO·Filed 2008·Granted Mar 31, 2009·4 cites·7 claims
- 4176US7208606B2Hydroformylation process for the conversion of an ethylenically unsaturated compound to an alcoholSHELL OIL CO·Filed 2006·Granted Apr 24, 2007·2 cites·1 claims
- 4276US4855399ACarbon monoxide/olefin co-polymerization process with phosphino substituted sulfonic acid catalystSHELL OIL CO·Filed 1987·Granted Aug 8, 1989·11 cites·12 claims
- 4375US6156936AHydroformylation of olefin feeds containing dienesSHELL OIL CO·Filed 1999·Granted Dec 5, 2000·17 cites·7 claims
- 4475US5994591AHydroformylation processSHELL OIL CO·Filed 1998·Granted Nov 30, 1999·21 cites·23 claims
- 4575US5369074ACatalyst composition for polymerizing carbon monoxide and ethylenically unsaturated hydrocarbonsSHELL OIL CO·Filed 1993·Granted Nov 29, 1994·17 cites·8 claims
- 4675US4740625ACatalyst compositions and a process for polymerizing carbon monoxide and olefinsSHELL OIL CO·Filed 1987·Granted Apr 26, 1988·20 cites·30 claims
- 4774US5780684AHydroformylation reactionsSHELL OIL CO·Filed 1997·Granted Jul 14, 1998·14 cites·27 claims
- 4874US4824817ACatalyst for the carbonylation of conjugated dienesSHELL OIL CO·Filed 1987·Granted Apr 25, 1989·11 cites·11 claims
- 4973US4945179AProcess for the preparation of esters of carboxylic acids and catalytic system for use thereinSHELL OIL CO·Filed 1988·Granted Jul 31, 1990·10 cites·9 claims
- 5072US7161043B2Process for the carbonylation of ethylenically unsaturated compounds and bidentate diphosphine composition used in this processSHELL OIL CO·Filed 2005·Granted Jan 9, 2007·1 cites·6 claims
Showing the top 50 of 223 patent records by PatentIndex Score.
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