Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10499149 | Microphone, vocal training apparatus comprising microphone and vocal analyzer, vocal training method, and non-transitory tangible computer-readable storage medium | Wenchu Dong | 2019-12-03 |
| 10459252 | Apparatus and method for protecting a user from blue light radiation | Lijie Zhang, Xuewen Lv | 2019-10-29 |
| 10300474 | Catalysts for conversion of 2,3-butanediol-containing fermentation mixture to hydrocarbons | — | 2019-05-28 |
| 10194787 | Endoscope and method of manufacturing the same, and medical detection system | Lijie Zhang | 2019-02-05 |