Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1049435 | Light | — | 2024-10-29 |
| 10404642 | Message notification method, system, and device for a communication account | Changqing Yu | 2019-09-03 |
| 10009307 | Message notification method, system, and device for a communication account | Changqing Yu | 2018-06-26 |
| 9742721 | Method, system, server and client device for message synchronizing | Zhixing Chen, Changqing Yu | 2017-08-22 |