Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9624110 | Method and apparatus for preparing high-purity crystalline silica | Xingmao Jiang, Tao Zhang | 2017-04-18 |
| 6827916 | Method of making silica | Kai Guo, Jianfeng Chen, Fen Guo | 2004-12-07 |