Johannes T. de Hey

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Hilversum, NL

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Patents Grantslast 30 patents

Information Patent Grant
Hydroxy furanone preparation
- Patent number 5,149,840
- Issue date Sep 22, 1992
- Unilever Patent Holdings B.V.
- Coenraad Decnop
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Process for the preparation of flavor and fragrance materials
- Patent number 4,996,069
- Issue date Feb 26, 1991
- Unilever Patent Holdings B.V.
- Johannes T. de Hey
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES