Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6451079 | Pocket filter having inner frames mounted within an outer frame | Michael R. Lange | 2002-09-17 |
| 5715843 | Method of and apparatus for measuring the diameters of rod-shaped articles of the tobacco processing industry | Siegfried Hapke, Gunter Jurgens, Dierk Schröder | 1998-02-10 |