Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1004067 | Air cleaner | Hong Chang, Yuewen Jia, Guangmin Jia | 2023-11-07 |
| D1001989 | Air purifier | Hong Chang, Yuewen Jia | 2023-10-17 |
| D986398 | Air cleaner | Hong Chang, Yuewen Jia, Guangmin Jia | 2023-05-16 |
| D948018 | Air purifier | Hong Chang, Yuewen Jia, Guangmin Jia | 2022-04-05 |