Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9546896 | Method and apparatus for measuring ash deposit levels in a particular filter | Michael C. Gatz, David Painter | 2017-01-17 |
| 8979986 | Method and apparatus for measuring ash deposit levels in a particulate filter | David Painter, Michael C. Gatz | 2015-03-17 |
| 8832957 | Apparatus and method for determining ash height in a filter | — | 2014-09-16 |
| 8568536 | Filter cleaning tool and method | David Painter, Dwain L. Kamphuis | 2013-10-29 |
| 8157897 | Filter purge system utilizing impact wave generating device and vacuum source | David Painter, Jamie Erin Frisch | 2012-04-17 |
| 8142552 | Filter purge system utilizing a reactive propellant | Loran Hoffman, Thomas V. Staley, Philip Stephen Bruza | 2012-03-27 |
| 6223646 | Camless valve actuator for compression braking and normal engine operations | Thomas S. Carroll, Charles R. Miller | 2001-05-01 |
| 5694893 | Outward opening valve system for an engine | Anthony K. Chan, Dennis D. Feucht, Gregory J. Kaufman | 1997-12-09 |
| 5636602 | Push-pull valve assembly for an engine cylinder | — | 1997-06-10 |
| 5606940 | Engine valve seating velocity hydraulic snubber | Scott F. Shafer, Thomas S. Carroll, David Orr, J. Roger Weber | 1997-03-04 |
| 5597118 | Direct-operated spool valve for a fuel injector | Jeffrey Carter, Howard N. Cannon, Kirk Shively, Glen F. Forck, Raj T. Nagarajan | 1997-01-28 |
| 5531192 | Hydraulically actuated valve system | Dennis D. Feucht, Steven J. Funke | 1996-07-02 |
| 5499608 | Method of staged activation for electronically actuated fuel injectors | Charles R. Miller | 1996-03-19 |
| 5421359 | Engine valve seating velocity hydraulic snubber | Scott F. Shafer | 1995-06-06 |