Inventor · disambiguated record
Johannes Van Berkel
Also filed as: VAN BERKEL JOHANNES
7 granted patents·27 citations·filing 1978–1983
82Inventor score
Top patents by PatentIndex Score
7 records- 0166US4544510AProcess for preparing cyclopropane carboxylic acid ester derivativesSHELL INT RESEARCH·Filed 1983·Granted Oct 1, 1985·9 cites·10 claims
- 0260US4258205A2,2-Dimethylcyclopropanecarbaldehyde dimethyl acetal derivativesSHELL OIL CO·Filed 1978·Granted Mar 24, 1981·5 cites·4 claims
- 0356US4222964A2-(2,2-Dihalovinyl-3,3-dimethylcyclopropyl)ethanalSHELL OIL CO·Filed 1979·Granted Sep 16, 1980·4 cites·3 claims
- 0451US4298757A2-[2-(2,2-Dihalovinyl)-3,3-dimethylcyclopropyl ]vinyl alkanoatesSHELL OIL CO·Filed 1979·Granted Nov 3, 1981·3 cites·3 claims
- 0546US4230891A2-(2,2-Dihalovinyl)-3,3-dimethylcyclopropanecarbaldehyde dimethyl acetalSHELL OIL CO·Filed 1978·Granted Oct 28, 1980·2 cites·3 claims
- 0645US4234512ACyclopropane derivativesSHELL OIL CO·Filed 1979·Granted Nov 18, 1980·2 cites·5 claims
- 0744US4281203A(Cyclopropyl)vinyl alkyl ether derivativesSHELL OIL CO·Filed 1980·Granted Jul 28, 1981·2 cites·4 claims
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