Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4704477 | Trimethylcyclohexene derivatives, their preparation and use as perfume substances | Helmut Gebauer, Marlies Regiert | 1987-11-03 |
| 4647406 | 2-ethyl-2-prenyl-3-hexenol its preparation and use as a fragrant | Helmut Gebauer | 1987-03-03 |