Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6742383 | Diluter to reduce quantity of micro particles in the air so as to facilitate calculation of concentration of the micro particles in the air | His-Sheng Wu, Tsun-Huo Ho | 2004-06-01 |
| 6716265 | Air treatment apparatus with an interchangeable vent cover | Chien-Chang Hung, Chung-Shu Pan | 2004-04-06 |