Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10362175 | Network telephone device, external connection card and communication method therefor | — | 2019-07-23 |
| 10341469 | Data transmission method and apparatus and data receiving method and apparatus | Kuifei Yu, Ran Xu, Guolin Sun, Hangming Zhang | 2019-07-02 |