Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11986907 | Automatic weldding method and device for prestressed tubular piles | Xiaoli Sun, Zhiguo ZHOU, Jun Yang, Liangjun Hu, Jixi Shao +5 more | 2024-05-21 |
| 9749316 | Method for data access using a dynamic SIM credential | David Zhang, Huiyue Xu | 2017-08-29 |
| 9749904 | Circuit switch voice roaming to LTE network | David Zhang, Huiyue Xu, Zhihai Zhang | 2017-08-29 |
| 9426658 | Method of and system for data access over dual data channels with dynamic SIM credential | David Zhang, Huiyue Xu | 2016-08-23 |
| 8838070 | Method of and system for data access over dual data channels with dynamic sim credential | David Zhang, Huiyue Xu | 2014-09-16 |