Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6418989 | Standing-stem timber harvesting system | — | 2002-07-16 |
| 6167928 | Helicopter logging system | — | 2001-01-02 |
| 5522186 | Tree supported structure | — | 1996-06-04 |
| 4848703 | Method of transporting objects by helicopter and grapple adapted therefor | Wayne Coulson, Gary Collinge | 1989-07-18 |