Robert B. Koolstra

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Weesp, NL

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Patents Grantslast 30 patents

Information Patent Grant
Method for the photochemical isomerization of organic compounds und...
- Patent number 5,252,191
- Issue date Oct 12, 1993
- Duphar International Research B.V.
- Louis F. Pauli
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the photochemical conversion of tachysterol compounds in...
- Patent number 5,175,217
- Issue date Dec 29, 1992
- Duphar International Research B.V.
- Eric Goethals
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the photochemical conversion of tachysterol compounds in...
- Patent number 5,035,783
- Issue date Jul 30, 1991
- Duphar International Research B.V.
- Eric Goethals
- C07 - ORGANIC CHEMISTRY