Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10605045 | Downhole tool having a shock-absorbing sleeve | Per Angman, Kevin GRAF, Mark Andreychuk | 2020-03-31 |
| 9840888 | Downhole tool having a shock-absorbing sleeve | Per Angman, Kevin GRAF, Mark Andreychuk | 2017-12-12 |