Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782959 | Cutter element with non-linear, expanded crest | James C. Minikus, Chris E. Cawthorne, Stephen C. Steinke, Gary E. Garcia, David P. Moran +1 more | 2004-08-31 |
| 6698536 | Roller cone drill bit having lubrication contamination detector and lubrication positive pressure maintenance system | David P. Moran | 2004-03-02 |
| 6695079 | Dual-seal drill bit pressure communication system | Chris E. Cawthorne, Robert H. Slaughter, Jr., Roger Didericksen, Peter Thomas Cariveau, Robert Denton | 2004-02-24 |
| 6679342 | Dual-seal drill bit pressure communication system | Chris E. Cawthorne, Robert Denton, Robert H. Slaughter, Jr., Roger Didericksen, Peter Thomas Cariveau | 2004-01-20 |