Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5444162 | Mixture of disaccharide esters of 3-methylpentanoic acid and acetic acid for flavouring | Willem Apeldoorn, Hans J. Wille | 1995-08-22 |
| 5432154 | Ethers for aromatizing purposes | Johannes T. De Heij, Franciscus P. van Lier | 1995-07-11 |
| 5313002 | Ethers for aromatizing purposes | Johannes T. De Heij, Franciscus P. van Lier | 1994-05-17 |
| 5296461 | Diterpenoid alcohols for flavouring purposes | Johannes T. De Heij, Johannes M. Van Dort | 1994-03-22 |
| 5103843 | Process for improving the taste and aroma of tobacco | Jacobus Johannes Burger, Hendrik Willem M. van Drooge, Rudi F. van Eick | 1992-04-14 |
| 4996069 | Process for the preparation of flavor and fragrance materials | Johannes T. de Hey, Jan Visser | 1991-02-26 |
| 4537702 | Perfume and flavoring compositions, perfumed articles and materials, and flavored food products containing an oxaspirodecadiene derivative as the essential compound, as well as the oxaspiro[4.5]decadiene derivative per se | Antonius J. A. van der Weerdt | 1985-08-27 |
| 4352748 | Novel acyl-polyalkylindan compounds and the use thereof as a base for perfume, as well as perfume compositions | Petrus C. Traas, Harmannus Boelens | 1982-10-05 |