Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7384455 | Filter service system and method | Cheryl Sellers, Dong Fei, Jill Akers, Mark Alan Gasper, Daniel Nordyke +7 more | 2008-06-10 |
| 6431665 | Track adjustment assembly to reduce vibration | Roger A. Wehage | 2002-08-13 |