Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4355296 | Electric vehicle performance sensor and shift point indicator | — | 1982-10-19 |
| 4267545 | Hydraulic vehicle performance sensor and shift point indicator | Harvey W. Rockwell | 1981-05-12 |
| 4230152 | Multi-function control valve | David F. Carl | 1980-10-28 |
| 4222287 | Multiple control locking device | Evsey P. Levin | 1980-09-16 |