Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10488319 | Testing apparatus for gas permeability in concrete and testing method therefor | Zhongping Wang, Xiaoxu Ni, Ronglong Sun, Fei Cheng | 2019-11-26 |
| 10315336 | Drill bit | Tieyan Zhang, Bin Hong, Massimo Anghileri | 2019-06-11 |