Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10232312 | Device and process for fluorine recovery from smoke after phosphorus absorption by hydration in kiln process for production of phosphoric acid | Yonghe Hou, Shifa Wei | 2019-03-19 |
| 10023463 | Phosphorus absorption by hydration and fluorine recovery for fume exiting kiln in kiln phosphoric acid process | Yonghe Hou, Shifa Wei | 2018-07-17 |
| 9776868 | Apparatus for preparing phosphoric acid from fume exiting the kiln in a kiln phosphoric acid process | Yonghe Hou, Shifa Wei | 2017-10-03 |