Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7536943 | Valve and auxiliary exhaust system for high efficiency steam engines and compressed gas motors | — | 2009-05-26 |
| 7412946 | Water tube boiler | — | 2008-08-19 |
| 5024397 | Clamshell attachment for log grapple | James C. Edwards | 1991-06-18 |