Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10927023 | Whey preacid treatment of wastewater with high calcium concentration to promote anaerobic digestion and delay calcification | Shuangfei Wang, Zhiwei Wang, Hui Liu, Chengrong Qin, Chen Liang +3 more | 2021-02-23 |
| 10321224 | Loudspeaker | Zhaopeng Li, Huawei Liu | 2019-06-11 |
| 10266406 | Producing high-purity chlorine dioxide gas | Shuangfei Wang, Chengrong Qin, Shuangxi Nie, Chen Liang, Xinliang Liu +2 more | 2019-04-23 |
| 10219055 | Loudspeaker module | Zhaopeng Li, Huawei Liu, Zhilei Han | 2019-02-26 |
| 9776163 | Method and system for the integral chlorine dioxide production with relatively independent sodium chlorate electrolytic production and chlorine dioxide production | Shuangfei Wang, Chengrong Qin, Xusheng Li, Shuangxi Nie, Chen Liang | 2017-10-03 |
| 9777431 | Excess heat recovery during high temperature pulp bleaching | Shuangfei Wang, Shuangxi Nie, Chengrong Qin, Haichuan Zhang, Kun Zhang | 2017-10-03 |
| 9648404 | Speaker module and assembling method of the speaker module | Zhaopeng Li, Huawei Liu | 2017-05-09 |