Jogchum Hofma

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Amersfoort, NL

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of dihydropyrans
- Patent number 5,162,551
- Issue date Nov 10, 1992
- Naarden International, N.V.
- Nicolaas L. Broekhof
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Perfume compositions and perfumed articles containing dihydro- and/...
- Patent number 4,643,844
- Issue date Feb 17, 1987
- 501 Naarden International N.V.
- Nicolaas L. J. M. Broekhof
- C07 - ORGANIC CHEMISTRY