Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8517438 | Pipe lifting and handling tool | Kevin J. Hamblin | 2013-08-27 |
| 8347984 | Variable force/variable frequency sonic drill head | — | 2013-01-08 |
| 8291791 | Open-faced rod spinning device | Emil Kolev, Michael Andreas Kontou | 2012-10-23 |
| 8006590 | Open-faced rod spinner | Emil Kolev, Michael Andreas Kontou | 2011-08-30 |