Issued Patents 2022
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11512225 | Process and composition for dust control | Charles Li Zha | 2022-11-29 |
| 11492522 | Chemical products for adhesive applications | Charles Li Zha, Leo Elder, John W. Green | 2022-11-08 |
| 11492544 | Chemical products for adhesive applications | Charles Li Zha | 2022-11-08 |
| 11447689 | Crosslinked proppant-gel matrix | Charles Li Zha | 2022-09-20 |
| 11421113 | Chemical products for surface protection | Charles Li Zha | 2022-08-23 |