Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |