Issued Patents 2018
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10113098 | Composition including viscosifier polymer and polyamine viscosity modifier for treatment of subterranean formations | Weibin Zha, Jay Paul Deville, Hui Zhou | 2018-10-30 |
| 10000683 | Drilling fluids with crosslinked sulfonate-containing polymers dispersed in high density brines | Hui Zhou, Weibin Zha | 2018-06-19 |
| 9957432 | Wellbore fluid additives of fibrillated fibers and methods of use | Matthew L. Miller | 2018-05-01 |
| 9926481 | Polymeric viscosifiers for use in water-based drilling fluids | Weibin Zha, Jay Paul Deville | 2018-03-27 |
| 9879172 | Modified hydroxyethyl cellulosic polymers for improved well bore fluids and related uses | Samuel James Maguire-Boyle | 2018-01-30 |