Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11673297 | Molding method for producing a stator for a screw drilling tool using elastomer material | Dingyu Guo, Minghui Zhu, Yiran Liu, Zhuanrui Liu, Paul Kwong Shun Cheung +1 more | 2023-06-13 |
| 11555087 | Prepolymer of elastomer material for screw drilling tool and preparation method thereof | Dingyu Guo, Minghui Zhu, Yiran Liu, Zhuanrui Liu, Paul Kwong Shun Cheung +1 more | 2023-01-17 |