Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8985971 | PFA motor protection bag | — | 2015-03-24 |
| 8690551 | Modular seal bladder for high temperature applications | Alan Howell, Joseph W. Elder | 2014-04-08 |
| 8419387 | Bag seal mounting plate with breather tube | Randy Karbs, Michael Barnes, Alan Howell | 2013-04-16 |
| 8246326 | Mechanism for sealing PFA seal bags | — | 2012-08-21 |
| 8246328 | Seal section with sand trench | Alan Howell, Michael Barnes, Randy Karbs | 2012-08-21 |
| 7275355 | Blade and ground speed control system | G. Michael Adams, Gordon E. Rado | 2007-10-02 |
| 6892517 | Blade and ground speed control system | G. Michael Adams, Gordon E. Rado | 2005-05-17 |