Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11186763 | Acid sensitive emulsifier for use in subterranean treatment operations | Li Guo, William Walter Shumway, Jay Paul Deville | 2021-11-30 |
| 11117072 | Ultrasonic breaking of polymer-containing fluids for use in subterranean formations | Preston Andrew May, William Walter Shumway | 2021-09-14 |