Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9945191 | Horseshoe jack for drilling, work-overs and completions | CONRAD PETROWSKY, Blake Johnson | 2018-04-17 |
| 8631870 | Snubbing tubulars from a SAGD well | Blake Johnson, CONRAD PETROWSKY | 2014-01-21 |