Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11000921 | Composite welding rods and associated cladded articles | Qingjun Zheng | 2021-05-11 |
| 9849532 | Composite wear pad and methods of making the same | Qingjun Zheng, Yixiong Liu | 2017-12-26 |