Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10975662 | Tubular valve assembly for cementing of wellbores | — | 2021-04-13 |
| 10907411 | Tool assembly and process for drilling branched or multilateral wells with whip-stock | John Lewis Chute | 2021-02-02 |