Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11448018 | Power tong frame stiffner | Dwayne Austin Weddle | 2022-09-20 |
| 11255141 | Power tong with vertically pivoting door | Dwayne Austin Weddle | 2022-02-22 |
| 6966385 | Tong positioning system and method | Lance L. Hemphill | 2005-11-22 |
| 6938520 | Backup tong with swing arms | — | 2005-09-06 |
| 6058811 | Power tong with improved door mechanism | — | 2000-05-09 |
| 5778742 | Hydraulic backup tong | — | 1998-07-14 |
| 5746276 | Method of rotating a tubular member | — | 1998-05-05 |
| 5566769 | Tubular rotation tool for snubbing operations | — | 1996-10-22 |