Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5791353 | Method and apparatus for denitrating tobacco stem material | Gerald Schmekel, Arno Weiss, Wilfried Stiller | 1998-08-11 |
| 5339837 | Drying process for increasing the filling power of tobacco material | Werner Hirsch, Arno Weiss, Erhard Rittershaus, Caspar H. Koene, Ingo Pautke +3 more | 1994-08-23 |
| 4709709 | Process for the moistening of comminuted smoking materials | Werner Hirsch, Arno Weiss | 1987-12-01 |