Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4512300 | Oil temperature control system for internal combustion engine | Leslie A. Roettgen | 1985-04-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4512300 | Oil temperature control system for internal combustion engine | Leslie A. Roettgen | 1985-04-23 |