Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10077211 | Cement grinding aids prepared with waste antifreeze | Weifeng Li, Xiaodong Shen | 2018-09-18 |
| 9868674 | Chemical additive for calcium sulphoaluminate-modified portland cement | Weifeng Li, Jin Won YU, Yueyang Hu, Xiaodong Shen | 2018-01-16 |