Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10161227 | Permanent bypass whipstock assembly for drilling and completing a sidetrack well and preserving access to the original wellbore | David G. Hearn, Dan E. Venhaus, John G. Eller | 2018-12-25 |