Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7987651 | Automatic bale wrapping apparatus | Daniel E. Riggs, Donald W. Van Doorn | 2011-08-02 |
| 7707692 | Control system for roller gin | Joe Thomas | 2010-05-04 |
| 4771665 | Blade quality monitor | Donald W. Van Doorn | 1988-09-20 |
| 4747251 | Portable bin transfer system | Donald W. Van Doorn, James B. Hawkins, Francis W. Carpenter, III, Wilbur G. Hudson, Tommy W. Webb | 1988-05-31 |
| 4617862 | Portable bin transfer system | Donald W. Van Doorn, James B. Hawkins, Francis W. Carpenter, III, Wilbur G. Hudson, Tommy W. Webb | 1986-10-21 |
| 4569264 | Apparatus for cutting elongated material into shorter lengths | Donald W. Van Doorn, James B. Hawkins, William A. Harmon, Terry L. McKenzie | 1986-02-11 |
| 4563794 | Self-cleaning roller gin | — | 1986-01-14 |