Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8083658 | Tobacco smoke filter production | Alexis Louvet | 2011-12-27 |
| 6537186 | Process and apparatus for high-speed filling of composite cigarette filters | — | 2003-03-25 |
| 5896861 | Process for aromatizing and/or filtering tobacco smoke, cigarette end piece for carrying out the process and use of this process | — | 1999-04-27 |
| 4791943 | Cigarette filter unit and method for the production thereof | Alois Kupper | 1988-12-20 |
| 4747418 | Cigarette filter unit | — | 1988-05-31 |
| 4466451 | Method for aromatizing tobacco smoke | Jacques Bonnet, Pierre-Ernest Jaccard | 1984-08-21 |