Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5655991 | Process and apparatus for controlling a continuously variable speed transmission | Willi Seidel, Joseph Petersmann | 1997-08-12 |
| 5642644 | Control system and control process for an infinitely variable transmission | Joseph Petersmann | 1997-07-01 |
| 5624348 | Process for determining the shifting time for a transmission ratio change in an infinitely variable transmission | Joseph Petersmann | 1997-04-29 |
| 5540632 | Control process and control arrangement for a continuously variable speed transmission | Willi Seidel, Heinz Stehle, Joseph Petersmann | 1996-07-30 |
| 4986232 | Arrangement for recognizing misfirings in internal combustion engines with externally controlled ignition | Axel Richter, Ulrich Schempp, Herbert Glueck | 1991-01-22 |