Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8933353 | Foot-operated switch | Markus Finger, Michael Schnitker | 2015-01-13 |
| 6614199 | Device for displacing furniture | Ralf Bokamper, Friedhelm Herzig, Martin Ctvrtnicek | 2003-09-02 |
| 5210553 | Progressive ophthalmic lens with positive distance power | Rudolf Barth | 1993-05-11 |