Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11773312 | Breaker additives for extended delay in removal of oil-based filter cakes | William Walter Shumway, Jay Paul Deville | 2023-10-03 |
| 11649391 | High density brine internal phase | Jay Paul Deville, Hui Zhou, Chesnee Lae Davis | 2023-05-16 |
| 11578248 | Emulsifiers for direct emulsion drilling fluids | Li Guo | 2023-02-14 |
| 11566158 | Quaternary ammonium emulsion breakers | Li Guo | 2023-01-31 |