Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669765 | Pair of conveyor worms for rotary positive-displacement pumps | Henning Moller | 1997-09-23 |
| 4384411 | Portable hair dryer | Alex Stiegler, Hubert Giraud, Karl-Heinz Hoffmann, Robert Oberheim | 1983-05-24 |
| 4195217 | Hair dryer | Karl-Heinz Hoffmann | 1980-03-25 |