Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7637974 | Active carbon coated filter element for preventing the leaking of hydrocarbons | Hans-Peter Scholl, Guenther Scholz, Heinz Daubner, Johann Rackerseder, Frank Pfeiffer +3 more | 2009-12-29 |