Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6572128 | Ratchet propulsion system for scooters | — | 2003-06-03 |
| 4384556 | Valve shut-off arrangement for a multicylinder internal combustion engine | Rolf Ohlendorf | 1983-05-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6572128 | Ratchet propulsion system for scooters | — | 2003-06-03 |
| 4384556 | Valve shut-off arrangement for a multicylinder internal combustion engine | Rolf Ohlendorf | 1983-05-24 |