Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4537204 | Method of tobacco treatment to produce flavors | Helmut Gaisch, Dieter Schulthess | 1985-08-27 |
| 4407307 | Process for the preparation of tobacco and tobacco prepared according to this process | Helmut Gaisch, Dieter Schulthess | 1983-10-04 |