Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7785404 | Ionic air purifier with high air flow | Guangsheng Liu | 2010-08-31 |
| 7390352 | Air purifier with front-load electrodes | Guangsheng Liu | 2008-06-24 |
| D551328 | Air purifier | Guangsheng Liu | 2007-09-18 |