Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5442897 | Method of and apparatus for making tubular envelopes | Alfred Hinzmann, Peter Preisner, Wojciech Drewnowski | 1995-08-22 |
| 5004467 | Tampon | Alfred Hinzmann, Wojciech Drewnowski, Peter Preisner | 1991-04-02 |
| 4886077 | Method and apparatus for assembling plain cigarettes with filter rod sections | Alfred Hinzmann, Peter Preisner | 1989-12-12 |