Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6874754 | Apparatus for preventing valve stem coking | Todd P. Geib, Craig Smith, Christopher Marlowe, Mark Allen Reeves, Jerry L. Kelly +2 more | 2005-04-05 |
| 6467754 | Adaptable gas and moisture shield for a gas management valve | Raul A. Bircann, Dwight O. Palmer | 2002-10-22 |
| 6247461 | High flow gas force balanced EGR valve | Craig Smith, Dwight O. Palmer, Mark Allen Reeves | 2001-06-19 |
| 6217001 | Pressure balanced gas valve | Raul A. Bircann, Dwight O. Palmer, Paul Timothy Gee | 2001-04-17 |
| 5146887 | Valve assembly | Karl J. Haltiner, Jr., David G. Savini, Roger M. Brisbane, Daniel F. Smith | 1992-09-15 |