Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8453541 | Reduced weight power tong for turning pipe | Murray Gerwing, Steven Hargreaves | 2013-06-04 |
| 8393251 | Jaw assembly for gripping pipes | Jonanthan Brent Fraser, Leslie L. Szalacsi, Hermann Basler | 2013-03-12 |
| 8267448 | Cam arm actuated backup tong | Murray Gerwing, Steven Hargreaves | 2012-09-18 |
| 7255025 | Power tong with sliding jaw | Jonanthan Brent Fraser, Leslie L. Szalacsi, Hermann Basler | 2007-08-14 |
| 7219580 | Cam follower for power tongs and other uses | Leslie L. Szalacsi, Jonathan Fraser, Hermann Basler | 2007-05-22 |
| 7000503 | Support system for power tong assembly | Leslie L. Szalacsi, Jonathan Fraser, Hermann Basler | 2006-02-21 |
| 6761090 | Camming system for power tong jaws | Leslie L. Szalacsi, Jonathan Fraser, Hermann Basler | 2004-07-13 |
| 6637296 | Jaw assembly for gripping pipes | Jonathan Fraser, Leslie L. Szalacsi, Hermann Basler | 2003-10-28 |