Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12129203 | Concrete with oil shale waste residue as aggregates and preparation method thereof | Dehong Wang, Yunyi Wang, Wenqi E | 2024-10-29 |
| 11746597 | Pressured horizontal directional drilling continuous coring device for engineering geological investigation | Xuefeng Yan, Peng Zhang | 2023-09-05 |
| 11643895 | Sealed pressured horizontal directional drilling continuous coring device for engineering geological investigation | Xuefeng Yan, Peng Zhang | 2023-05-09 |
| 11585174 | Hydraulic propulsion horizontal directional coring device | Xuefeng Yan, Peng Zhang | 2023-02-21 |
| 11525320 | Casing-protective horizontal directional drilling coaxial coring device for geological investigation | Xuefeng Yan, Peng Zhang | 2022-12-13 |
| 9828480 | High filling and high resilience soft foaming polyethylene material and preparation method thereof | — | 2017-11-28 |