Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8979962 | Filter element with a guide duct that penetrates its pleated walls | Uwe Haefner, Roland Dobner | 2015-03-17 |
| 7956522 | Ignition anode, in particular for reignitable rocket combustion chambers | — | 2011-06-07 |
| 6361577 | Cassette filter | Margit Hofmann | 2002-03-26 |
| 6352665 | Method for producing a tubular according filter element | Margit Hofmann | 2002-03-05 |
| 6193830 | Pleated filter insert and method of manufacture | — | 2001-02-27 |
| 6056799 | Tubular accordion filter element | Margit Hofmann | 2000-05-02 |
| 5695535 | Pocket filter | Dieter Hintenlang, Udo Michaelis, Margit Hofmann | 1997-12-09 |
| 4996774 | Guide bar for the saw chain of a motor-driven chain saw and a method and apparatus for producing the same | Uwe Burger, Horst Weinhold | 1991-03-05 |
| 4693005 | Guide bar for a saw chain of a motor-driven chain saw | Anton Wehle, Gunther Zimmermann | 1987-09-15 |