Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9752675 | Transmission control circuit | Helmut Schaefer, Steffen Frassek | 2017-09-05 |
| 5224578 | Coolant flow control for a clutch | Helmut Schaefer | 1993-07-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9752675 | Transmission control circuit | Helmut Schaefer, Steffen Frassek | 2017-09-05 |
| 5224578 | Coolant flow control for a clutch | Helmut Schaefer | 1993-07-06 |