Inventor · disambiguated record
Pieter A. Verbrugge
Also filed as: KRAMER PETRUS A · VERBRUGGE PIETER A · VERBRUGGE PIETER ADRIAAN
27 granted patents·72 citations·filing 1974–1998
95Inventor score
Top patents by PatentIndex Score
27 records- 0170US4056509APreparation of benzyl cyanidesSHELL OIL CO·Filed 1976·Granted Nov 1, 1977·9 cites·15 claims
- 0264US4285882ATrihalocyclopropyl carbonatesSHELL OIL CO·Filed 1980·Granted Aug 25, 1981·5 cites·11 claims
- 0362US4012430AProcess for the preparation of cyclopropane derivativesSHELL OIL CO·Filed 1975·Granted Mar 15, 1977·6 cites·8 claims
- 0462US4008287AProcess for the preparation of cyclopropane derivativesSHELL OIL CO·Filed 1975·Granted Feb 15, 1977·6 cites·6 claims
- 0561US5874615AMethod for the preparation of insecticidal benzoylurea compoundsAMERICAN CYANAMID CO·Filed 1998·Granted Feb 23, 1999·8 cites·13 claims
- 0658US4855452AN-substituted azetidine carboxylate derivativesSHELL OIL CO·Filed 1988·Granted Aug 8, 1989·4 cites·6 claims
- 0758US4247711APreparation of 2-formyl-3,3-dimethylcyclopropaneacetic acidSHELL OIL CO·Filed 1979·Granted Jan 27, 1981·4 cites·43 claims
- 0857US4242279A2-(2,2-Dihalovinyl)-3,3-dimethylcyclopropylacetone pyrethroid intermediatesSHELL OIL CO·Filed 1979·Granted Dec 30, 1980·3 cites·4 claims
- 0956US4132728APreparation of nitrilesSHELL OIL CO·Filed 1977·Granted Jan 2, 1979·4 cites·13 claims
- 1050US4298756A1R, Cis 2,2-dihalovinyl-3,3-dimethylcyclopropylmethanol and ester derivativesSHELL OIL CO·Filed 1979·Granted Nov 3, 1981·2 cites·5 claims
- 1150US4294765ACis-lactone pyrethroid intermediatesSHELL OIL CO·Filed 1980·Granted Oct 13, 1981·3 cites·3 claims
- 1250US4036887APreparation of 3-bromobenzaldehydeSHELL OIL CO·Filed 1976·Granted Jul 19, 1977·3 cites·2 claims
- 1347US4239707ANovel 8-substituted bicyclo(3,2,)-octanesSHELL OIL CO·Filed 1979·Granted Dec 16, 1980·2 cites·8 claims
- 1446US4812581ACatalytic hydrogenolysisSHELL OIL CO·Filed 1987·Granted Mar 14, 1989·2 cites·10 claims
- 1546US4230891A2-(2,2-Dihalovinyl)-3,3-dimethylcyclopropanecarbaldehyde dimethyl acetalSHELL OIL CO·Filed 1978·Granted Oct 28, 1980·2 cites·3 claims
- 1643US4025562AProcess for the preparation of macrocyclic ketonesSHELL OIL CO·Filed 1974·Granted May 24, 1977·3 cites·12 claims
- 1741US5155135ABenzamide compounds, their preparation and their use as pesticidesSHELL INT RESEARCH·Filed 1989·Granted Oct 13, 1992·2 cites·22 claims
- 1841US4305890ACyclopropyl dihalo phosphitesSHELL OIL CO·Filed 1980·Granted Dec 15, 1981·1 cites·6 claims
- 1940US4388247ATrihalomethylation of aldehydesSHELL OIL CO·Filed 1980·Granted Jun 14, 1983·1 cites·14 claims
- 2040US4180520APreparation of nitrilesSHELL OIL CO·Filed 1978·Granted Dec 25, 1979·1 cites·14 claims
- 2137US4307243AProcess of preparing dihalovinyl compoundsSHELL OIL CO·Filed 1980·Granted Dec 22, 1981·1 cites·12 claims
- 2234US4554109AEsters of 1,5-dimethyl bicyclo [3.2.1] octan-8-olSHELL OIL CO·Filed 1983·Granted Nov 19, 1985·0 cites·2 claims
- 2333US4219504APreparation of 2-(2-acetyl-3-oxobutyl)-3,3-dimethylcyclopropanecarbaldehydeSHELL OIL CO·Filed 1979·Granted Aug 26, 1980·0 cites·14 claims
- 2432US4778577AProcess for preparing azetidine derivatives; and intermediates thereinSHELL OIL CO·Filed 1986·Granted Oct 18, 1988·0 cites·8 claims
- 2530US4421935AProcess for the preparation of bicyclo [2.2.] heptene derivativesSHELL OIL CO·Filed 1982·Granted Dec 20, 1983·0 cites·10 claims
- 2629US4042616APreparation of cyclopropanecarboxylatesSHELL OIL CO·Filed 1974·Granted Aug 16, 1977·0 cites·10 claims
- 2728US5189197AProcess for preparing carbamates, and intermediates thereinSHELL INT RESEARCH·Filed 1990·Granted Feb 23, 1993·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →