Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11505908 | Drilling apparatus and PHC pipe cased pile, and method of drilling with PHC pipe cased pile | Mengxiong TANG, Zhiguo ZHOU, Xiaoli Sun, Jun Yang | 2022-11-22 |
| 11275192 | Pile integrity detection system based on cross-hole sonic logging method | Chunlin Liu, Shuo Zhang, Xueshun Yang | 2022-03-15 |
| 11214938 | Construction method for pouring concrete in karst cave | Mengxiong TANG, Hang Chen | 2022-01-04 |