Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7950466 | Wellhead system and connector for wellheads | Doyle W. Rodgers, Randy P. Nichols | 2011-05-31 |
| 6570503 | Emergency signaling device | Izaak A. Ulert | 2003-05-27 |
| D407317 | Bottle | — | 1999-03-30 |
| 5135266 | Casing slips and seal member | Charles D. Bridges | 1992-08-04 |