Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5487699 | Treatment of poultry | Christopher Tyrrell, David Wills, David V. Gardiner | 1996-01-30 |
| 4365591 | Livestock handling system and apparatus therefor | David Wills, Ralph E. Green, Jr. | 1982-12-28 |