Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11643881 | Composite shock absorber for polycrystalline diamond compact bit | Wei Li, Siqi Li, Jingming Gai, Wenfeng Sun, Huan Zhao | 2023-05-09 |
| 10317125 | Refrigerator | Haiyan Wang, Zhe Hu, Feiyue You, Meiyan Wang, Dong Kong | 2019-06-11 |