Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7628583 | Discrete passage diffuser | Douglas Allan Roberts, Andre Leblanc, Peter Townsend, Ioan Sasu | 2009-12-08 |
| 6589015 | Discrete passage diffuser | Douglas Allan Roberts, Andre Leblanc, Peter Townsend, Ioan Sasu | 2003-07-08 |