Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481585 | System for selectively controlling motor vehicle electrical loads | Raymond O. Butler, Jr., Lewis R. Hetzler, John Delaplane, Anthony L. Marks | 1984-11-06 |
| 4470338 | Self oscillating vacuum actuator | Kenneth H. Clayton, Melvin H. Hallmann, Burr E. Stephens | 1984-09-11 |
| 4403121 | Remote control unit | Raymond O. Butler, Jr., Lewis R. Hetzler, John Delaplane | 1983-09-06 |
| 4371804 | Piezoelectric knock sensor | Yuchi P. Peng, Melvin H. Hallmann | 1983-02-01 |