Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813392 | Rotary valve assembly | Paul C. Cross | 1989-03-21 |
| 4782656 | Rotary valve assembly for engine | — | 1988-11-08 |
| 4773364 | Internal combustion engine with rotary combustion chamber | Paul C. Cross | 1988-09-27 |
| 4692104 | Rotary pumping apparatus with radial seal assemblies on piston | — | 1987-09-08 |
| 4667468 | Rotary internal combustion engine | — | 1987-05-26 |
| 4618318 | Vane and seal assembly | — | 1986-10-21 |
| 4612886 | Internal combustion engine with rotary combustion chamber | Paul C. Cross | 1986-09-23 |
| 4507067 | Rotary device with elliptical rotor in elliptical chamber | — | 1985-03-26 |
| 4494500 | Rotary valve assembly | — | 1985-01-22 |
| 4449490 | Concentric intake and exhaust valve assembly | — | 1984-05-22 |
| 4192348 | Fluid control unit | — | 1980-03-11 |