Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D388048 | Helicopter | Bobby Collins, Timothy M. Hazen, Walter C. Joiner | 1997-12-23 |
| D375077 | Helicopter | Walter C. Joiner | 1996-10-29 |
| D363054 | Helicopter | Walter C. Joiner | 1995-10-10 |
| 4415147 | Seating spring assembly and method | Thomas S. Biscoe | 1983-11-15 |
| 4233357 | Laminated insulating board | Robert J. Pragnell, John P. Sheppard | 1980-11-11 |