Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5107863 | Cigarette and filter therefor | Roger S. Slagle, Andreas Stathopoulos | 1992-04-28 |
| 4942887 | Filter mouthpiece for a smoking article | Ahmed Abdelgawad, Daniel Braem | 1990-07-24 |
| 4709710 | Process for improving tobacco | Helmut Gaisch | 1987-12-01 |
| 4572219 | Process for improving tobacco | Helmut Gaisch | 1986-02-25 |