Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6277176 | Moving filter device having filter elements with flow passages and method of filtering air | Yuan-Ming Tang, Michael R. Harms | 2001-08-21 |
| 6248153 | Diffusional gas transfer system and method of using same | David L. Braun | 2001-06-19 |
| 6099608 | Rotating filtration cartridge and blower for HVAC applications | Michael R. Harms, Yuan-Ming Tang, James R. Larson | 2000-08-08 |
| 6099609 | Moving sorbent filter device | Yuan-Ming Tang, Michael R. Harms | 2000-08-08 |
| 5976220 | Diffusional gas transfer system and method using same | David L. Braun | 1999-11-02 |