Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4459224 | Perfume compositions as well as perfumed articles and materials containing alkyl substituted benzyl cyanides as a fragrance | Antonius J. A. van der Weerdt, Roeland Plomp | 1984-07-10 |
| 4442025 | Perfume compositions and perfumed articles containing esters of substituted bicyclo [2.2.1]heptane and heptene-carboxylic acids as perfume base | Antonius J. A. van der Weerdt, Theodorus Gerardus Maria Hesp | 1984-04-10 |
| 4352748 | Novel acyl-polyalkylindan compounds and the use thereof as a base for perfume, as well as perfume compositions | Petrus C. Traas, Harrie Renes | 1982-10-05 |
| 4288349 | Perfume compositions containing 3,3-dimethylbicyclo-[2,2,1]-heptane-2-carboxylic acid as a perfume | Roelof Ter Heide | 1981-09-08 |
| 4235824 | Method for the preparation of fragrances, and method for the preparation of perfume compositions | Petrus C. Traas, Hans J. Wille | 1980-11-25 |