Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4420014 | Pressure regulator for a fluid motor | Robert R. Riggs | 1983-12-13 |
| 4352299 | Intermittent motion gear apparatus | Robert R. Riggs | 1982-10-05 |
| 4249453 | Fluidic motor actuator | Robert R. Riggs | 1981-02-10 |