Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9145726 | Concealed door closer | Haojie Li, Zhenfeng Fu, Guowei Jiang, Zhenbo Wu, Hongbo Liu +3 more | 2015-09-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9145726 | Concealed door closer | Haojie Li, Zhenfeng Fu, Guowei Jiang, Zhenbo Wu, Hongbo Liu +3 more | 2015-09-29 |