Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11091683 | Drilling fluid for downhole electrocrushing drilling | Cato Russell McDaniel, William Walter Shumway | 2021-08-17 |
| 11091685 | Drilling fluid for downhole electrocrushing drilling | Dale E. Jamison, William Walter Shumway | 2021-08-17 |