Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10760374 | Tool for metal plugging or sealing of casing | David D. Hearn, Casey Hirschmann, Randall S. Shafer, Stewart M. Robertson | 2020-09-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10760374 | Tool for metal plugging or sealing of casing | David D. Hearn, Casey Hirschmann, Randall S. Shafer, Stewart M. Robertson | 2020-09-01 |