Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9573229 | Assembling apparatus for workpieces | Zhen Zhang, Ming Li | 2017-02-21 |
| 9403642 | Object sifting device | Zhen Zhang, Yang Zhang | 2016-08-02 |
| 9358584 | Sifting device | Zhen Zhang, Yang Zhang | 2016-06-07 |