Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7775956 | Process and apparatus for processing filter tow strip | Stephen H. Wolff, Gerd Strohecker, Sonke Horn | 2010-08-17 |
| 7300394 | Method and device for producing a filter rod | Alexander Buhl, Sonke Horn, Irene Maurer, Thorsten Scherbarth, Stephan Wolff +1 more | 2007-11-27 |