Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4754612 | Method for optimizing the mechanical output of a fluid pressure free piston engine | Edwin W. Dibrell | 1988-07-05 |
| 4589257 | Method and apparatus for extracting heat and mechanical energy from a pressured gas | — | 1986-05-20 |
| 4586426 | Multi-cylinder piston engine and method of operation thereof | Edwin W. Dibrell, Glenn B. O'Neal | 1986-05-06 |
| 4558666 | Rotating cylinder engine and method of operating the engine | — | 1985-12-17 |