Petrus C. Traas

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Naarden, NL

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of air-freshener gels
- Patent number 4,719,040
- Issue date Jan 12, 1988
- Naarden International N.V.
- Petrus C. Traas
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Novel acyl-polyalkylindan compounds and the use thereof as a base f...
- Patent number 4,352,748
- Issue date Oct 5, 1982
- Naarden International N.V.
- Petrus C. Traas
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the preparation of fragrances, and method for the prepar...
- Patent number 4,235,824
- Issue date Nov 25, 1980
- Naarden International N.V.
- Petrus C. Traas
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of boll weevil sex pheromone components
- Patent number 4,152,355
- Issue date May 1, 1979
- Naarden International N.V.
- Petrus C. Traas
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 4-methoxybenzonitrile perfume compositions
- Patent number 4,040,986
- Issue date Aug 9, 1977
- Naarden International N.V.
- Harmannus Boelens
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...