Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4947950 | Vehicle speed control device | — | 1990-08-14 |
| 4891941 | Free piston engine-pump propulsion system | — | 1990-01-09 |
| 4843949 | Fluid control valve with variable pressure gain | Howard J. Lambers, Michael D. Herder | 1989-07-04 |
| 4590909 | Vehicle speed control | — | 1986-05-27 |
| 4369021 | Free-piston engine pump | — | 1983-01-18 |