Issued Patents 1997
Showing 1–3 of 3 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 |