Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9714181 | Terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning and its preparation method | Maodong Li, Zhigang Chen, Weiwen Ye, Hua Li, Junming Zhao +6 more | 2017-07-25 |
| 9714182 | Phosphorus-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning and its preparation method | Maodong Li, Zhigang Chen, Wenxian Huang, Lin Yang, Jinmei Lin +6 more | 2017-07-25 |
| 9549492 | Correction mechanism for pin and correction device | BING LI | 2017-01-17 |