Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10113099 | High pressure high temperature (HPHT) aqueous drilling mud composition and process for preparing the same | Janice Jianzhao Wang, Jun Zheng | 2018-10-30 |
| 9969921 | Oil and gas treatment composition comprising hydroxyethyl cellulose and crosslinked polyvinylpyrrolidone | Jianzhao Wang | 2018-05-15 |
| 9914790 | Low molecular weight graft polymer for scale inhibitor | Janice Jianzhao Wang | 2018-03-13 |