Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6447234 | Livestock loading/unloading system | Steven C. Sinn, John D. Wilham, James Pyle | 2002-09-10 |
| 5902089 | Poultry loading apparatus | Steven C. Sinn, John D. Wilham, James D. Wilham | 1999-05-11 |