Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11085649 | Exhaust hood with forced air injection | Michael Sperka, Wolfgang Kunze, Ireneusz Czapp | 2021-08-10 |
| 10578315 | Exhaust hood with forced air injection | Michael Sperka, Wolfgang Kunze, Ireneusz Czapp | 2020-03-03 |
| 6909992 | Automatically identifying replacement times for limited lifetime components | — | 2005-06-21 |