Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8596462 | Particle separator | Alexander Roy Parfitt, Ian Michael Sturland, Clyde Warsop | 2013-12-03 |
| 7458287 | Particle sampling device | Alexander Roy Parfitt, Ian Michael Sturland, Clyde Warsop | 2008-12-02 |