Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8696479 | Observation tower | Julia Barfield | 2014-04-15 |
| 4767287 | Reciprocating piston mechanism | — | 1988-08-30 |
| 4392350 | Stirling engine power control and motion conversion mechanism | — | 1983-07-12 |