Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8360028 | Piston with two pivot bearings and twin crankshaft piston engine | John David Kirk | 2013-01-29 |
| 7739928 | Connecting rod for piston engine | — | 2010-06-22 |
| 7240647 | Piston engine | — | 2007-07-10 |
| 4184731 | Electrical connector for use inside a tube such as an ejector tube | — | 1980-01-22 |