Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5735484 | Helicopter skid | — | 1998-04-07 |
| 5060345 | Loop cutter for bulked continuous filaments | Andrew M. Coons, III | 1991-10-29 |
| 4627821 | Helicopter rescue device | George E. Evans, Donald Mackenzie, Michael Marcuson | 1986-12-09 |