Didericksen; Roger
Patent Applications and Registrations
Patent applications and USPTO patent grants for Didericksen; Roger.The latest application filed is for "mining claw bit".
- Didericksen; Roger - Spring TX
- Didericksen; Roger - Ponca City OK
| Patent | Date |
|---|---|
| Mining Claw Bit App 20090057030 - Didericksen; Roger ; et al. | 2009-03-05 |
| Dual-seal drill bit pressure communication system Grant 6,695,079 - Portwood , et al. February 24, 2 | 2004-02-24 |
| Dual-seal drill bit pressure communication system Grant 6,679,342 - Portwood , et al. January 20, 2 | 2004-01-20 |
| Protected lubricant reservoir for sealed earth boring drill bit Grant 6,619,412 - Slaughter, Jr. , et al. September 16, 2 | 2003-09-16 |
| Dual-seal drill bit pressure communication system App 20030019666 - Portwood, Gary Ray ; et al. | 2003-01-30 |
| Dual-seal drill bit pressure communication system App 20020153172 - Portwood, Gary Ray ; et al. | 2002-10-24 |
| Dual-seal drill bit pressure communication system Grant 6,431,293 - Portwood , et al. August 13, 2 | 2002-08-13 |
| Protected lubricant reservoir for sealed earth boring drill bit App 20010050187 - Slaughter, Robert H. JR. ; et al. | 2001-12-13 |
| Protected lubricant reservoir for sealed bearing earth boring drill bit Grant 6,296,067 - Slaughter, Jr. , et al. October 2, 2 | 2001-10-02 |
| Sealed bearing drill bit with dual-seal configuration and fluid-cleaning capability Grant 6,254,275 - Slaughter, Jr. , et al. July 3, 2 | 2001-07-03 |
| Hardfacing rock bit cones for erosion protection Grant 6,196,338 - Slaughter , et al. March 6, 2 | 2001-03-06 |
| Composite earth boring bit seal Grant 6,123,337 - Fang , et al. September 26, 2 | 2000-09-26 |
| Rock drill bit with back-reaming protection Grant 6,116,357 - Wagoner , et al. September 12, 2 | 2000-09-12 |
| Sealed bearing drill bit with dual-seal configuration Grant 6,033,117 - Cariveau , et al. March 7, 2 | 2000-03-07 |
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