Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5303679 | Rotary internal combustion engine | — | 1994-04-19 |
| 4645428 | Radial piston pump | Manuel Arregui, Rafael Diaz, Javier Yarza | 1987-02-24 |
| 4421073 | Rotating cylinder internal combustion engine | Manuel Arregui, Rafael Diaz, Javier Yarza | 1983-12-20 |