Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9352976 | Methods for preparing trimanganese tetroxide with low bet specific surface area, methods for controlling particle size of trimanganese tetroxide and trimanganese tetroxide product | Dong Hua, Zhengtao Liu, Kaiwen Zeng | 2016-05-31 |
| 9327995 | Method for preparing barium titanate | Dong Hua | 2016-05-03 |
| 9163328 | Methods for preparing trimanganese tetroxide with low BET specific surface area, methods for controlling particle size of trimanganese tetroxide and trimanganese tetroxide product | Dong Hua, Zhengtao Liu, Kaiwen Zeng | 2015-10-20 |
| 9018119 | Method for preparing manganese sulfate monohydrate by desulfurizing fume with middle-low grade manganese dioxide ore | Dong Hua, Fei Wu | 2015-04-28 |
| 8747802 | Method for preparing manganese sulfate monohydrate | Dong Hua | 2014-06-10 |
| 8480997 | Method for preparing manganese sulfate monohydrate | Dong Hua | 2013-07-09 |