Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8961633 | Filter cleaning in a vacuum having a flap element | Martin G. Kienzle, Rainer Hafenrichter, Klaus Dietz | 2015-02-24 |
| 6458178 | Filter dedusting arrangement in a vacuum cleaner | Klaus Dietz, Silke Meyer | 2002-10-01 |