Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8683848 | Oil well tubing pressure testing system and method of use | Don Taft, Don Siewell | 2014-04-01 |
| 5487226 | Manure drying system and related method | — | 1996-01-30 |
| 5143206 | Rod conveyor switch | — | 1992-09-01 |