Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8597092 | Fan control system | Marc Robitaille | 2013-12-03 |
| 8313299 | Frustoconical centrifugal wheel | — | 2012-11-20 |
| 7337789 | Cleaning apparatus for exhaust system and method | — | 2008-03-04 |
| 7077627 | Fan assembly and method | — | 2006-07-18 |
| 7077739 | High velocity and high dilution exhaust system | Marc Robitaille | 2006-07-18 |
| 7018287 | High velocity and high dilution exhaust system | Marc Robitaille | 2006-03-28 |
| 5439349 | Exhaust fan apparatus | — | 1995-08-08 |
| D286563 | Back draft shutter | — | 1986-11-04 |