Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8608834 | Filter service system and method | Cheryl Sellers, David Thaler, Mark Grimm, Jeremy Trethewey, Natalie Noel Vanderspiegel +8 more | 2013-12-17 |
| 8252093 | Filter service system and method | Cheryl Sellers, David Thaler, Mark Grimm, Jeremy Trethewey, Natalie Noel Vanderspiegel +8 more | 2012-08-28 |
| 8082730 | Engine system having particulate reduction device and method | Nan Yang, Jeff A. Jensen, Michael Pollard, Jamie Stringfield | 2011-12-27 |
| 7753978 | Filter system | Orhan Altin, Craig Habeger | 2010-07-13 |
| 7410529 | Filter service system and method | Cheryl Sellers, David Thaler, Mark Grimm, Jeremy Trethewey, Natalie Noel Vanderspiegel +8 more | 2008-08-12 |