Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351080 | Circuitry for dimming a fluorescent lamp | Berthold Birk, Walter Kares, Ulrich Roskoni | 2002-02-26 |
| 6067081 | Method for producing tactile markings on an input surface and system for carrying out of the method | Ulrich Roskoni, Guido Meier-Arendt | 2000-05-23 |
| 5471389 | Selective control of devices in a motor vehicle | — | 1995-11-28 |
| 4296457 | Apparatus for electrically connecting a plurality of contacts | — | 1981-10-20 |