Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374614 | Aqueous perfume oil microemulsions | John Martin Behan, Jeremy Nicholas Ness, Joannis S. Vitsas, Brian J. Willis | 1994-12-20 |
| 4921636 | Time duration indicator systems, and also products containing such indicator systems having a limited duration of use or life | — | 1990-05-01 |
| 4719040 | Process for the preparation of air-freshener gels | Ernst-Ludwig Roehl | 1988-01-12 |
| 4352748 | Novel acyl-polyalkylindan compounds and the use thereof as a base for perfume, as well as perfume compositions | Harrie Renes, Harmannus Boelens | 1982-10-05 |
| 4235824 | Method for the preparation of fragrances, and method for the preparation of perfume compositions | Harmannus Boelens, Hans J. Wille | 1980-11-25 |