Hendrik C. Kelderman

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Amsterdam, NL

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Patents Grantslast 30 patents

Information Patent Grant
2-[2-(2,2-Dihalovinyl)-3,3-dimethylcyclopropyl ]vinyl alkanoates
- Patent number 4,298,757
- Issue date Nov 3, 1981
- Shell Oil Company
- Johannes Van Berkel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2,2-Dimethylcyclopropanecarbaldehyde dimethyl acetal derivatives
- Patent number 4,258,205
- Issue date Mar 24, 1981
- Shell Oil Company
- Johannes Van Berkel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cyclopropane derivatives
- Patent number 4,234,512
- Issue date Nov 18, 1980
- Shell Oil Company
- Johannes Van Berkel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-(2,2-Dihalovinyl)-3,3-dimethylcyclopropanecarbaldehyde dimethyl a...
- Patent number 4,230,891
- Issue date Oct 28, 1980
- Shell Oil Company
- Pieter A. Verbrugge
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-(2,2-Dihalovinyl-3,3-dimethylcyclopropyl)ethanal
- Patent number 4,222,964
- Issue date Sep 16, 1980
- Shell Oil Company
- Johannes Van Berkel
- C07 - ORGANIC CHEMISTRY