Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11629592 | Extendable downhole tool and related systems, apparatus, and methods | David A. Hejl | 2023-04-18 |
| 10316657 | Extendable probe and formation testing tool and method | David A. Hejl, Russell McEacharn | 2019-06-11 |