Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6799643 | Percussion electrical hand-held tool | Orestis Voulkidis | 2004-10-05 |
| 6700341 | Microcontroller for and a method of controlling operation of the safety clutch of a hand-held electric power tool | Roland Schaer | 2004-03-02 |
| 6640205 | Method and device for investigating and identifying the nature of a material | Hans-Werner Bongers-Ambrosius, Roland Schaer, Harald Schmitzer | 2003-10-28 |
| 6356077 | Method of and device for determining a time-dependent gradient of a shock wave in a ferromagnetic element subjected to a percussion load | Roland Schaer, Peter Fabo, Andrey Jarosevic | 2002-03-12 |