Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8562913 | Air filtration and purification system | — | 2013-10-22 |
| 8467668 | Infrared room heater system | Alexander Anderson | 2013-06-18 |
| 8247742 | Quartz tube infrared heater system | Hen-Yuan Lin | 2012-08-21 |
| D586899 | Air filter cabinet | — | 2009-02-17 |
| D461004 | Air filter device | — | 2002-07-30 |
| 5185015 | Filter apparatus | — | 1993-02-09 |
| 5145350 | Ozone generator | James L. Dawson | 1992-09-08 |