Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7357621 | Centrifugal fan diffuser | David Hustvedt | 2008-04-15 |
| 7001140 | Centrifugal fan diffuser | David Hustvedt | 2006-02-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7357621 | Centrifugal fan diffuser | David Hustvedt | 2008-04-15 |
| 7001140 | Centrifugal fan diffuser | David Hustvedt | 2006-02-21 |