Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11066591 | Effective pour point depressants for amidoamine emulsifiers | Yiyan Chen | 2021-07-20 |
| 11028308 | Invert emulsifiers from DCPD copolymers and their derivatives for drilling applications | Yiyan Chen, Glynda A. Addicks | 2021-06-08 |