Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7318797 | Continuous rod machine arrangement for producing nonwoven filters | Alexander Buhl, Jann DeBoer, Sonke Horn, Irene Maurer, Thorsten Scherbarth +1 more | 2008-01-15 |
| 7175580 | Wear indicator for a roller | Stephan Wolff, Stephan Peters, Harald Dittombee, Jürgen Pehmöller, Thomas Meins +4 more | 2007-02-13 |
| 6059706 | Method of and apparatus for treating a filter tow | Firdausia Chehab, Stefan Fietkau | 2000-05-09 |
| 5738115 | Method of and apparatus for decontaminating the exposed surfaces of filter mouthpieces in smokers products | Firdausia Chehab, Stefan Fietkau, Thomas Juschus, Clemens Schmick | 1998-04-14 |
| 5725467 | Method of and apparatus for making a tow of filter material for tobacco smoke | Firdausia Chehab, Stefan Fietkau | 1998-03-10 |
| 5645087 | Method of and apparatus for decontaminating the exposed surfaces of filter mouthpieces in smokers' products | Firdausia Chehab, Stefan Fietkau, Thomas Juschus, Clemens Schmick | 1997-07-08 |
| 5590449 | Apparatus for stretching plasticizing and gathering a tow of filter material for tobacco smoke | Firdausia Chehab, Stefan Fietkau | 1997-01-07 |