Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9511312 | Sieve drum and installation equipped with it for removing materials to be sieved from a liquid | Franz Spenger, Daniel Hummel, Michael Kink | 2016-12-06 |
| 4553534 | Apparatus for relieving psychological stress | — | 1985-11-19 |