Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646842 | Shift control system for a multiple ratio automatic transmission | Johann Kirchhoffer | 1997-07-08 |
| 5642283 | Multiple ratio transmission with swap-shift controls | Johann Kirchhoffer, Stefan Huepkes | 1997-06-24 |
| 5621350 | Circuit for amplifying a weak dircet voltage signal | — | 1997-04-15 |
| 5612874 | Multiple ratio automatic transmission with solenoid operated valves for effecting pressure buildup | Johann Kirchhoffer | 1997-03-18 |