Roberts; Danielle V.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Roberts; Danielle V..The latest application filed is for "shank structure for rotary drill bits".
- Roberts; Danielle V. - Calgary CA
- Roberts; Danielle V. - Spring TX
| Patent | Date |
|---|---|
| Methods for applying wear-resistant material to exterior surfaces of earth-boring tools and resulting structures Grant 8,104,550 - Overstreet , et al. January 31, 2 | 2012-01-31 |
| Shank structure for rotary drill bits Grant 7,861,806 - Zahradnik , et al. January 4, 2 | 2011-01-04 |
| Drill bits and tools for subterranean drilling Grant 7,836,979 - Green , et al. November 23, 2 | 2010-11-23 |
| Shank Structure For Rotary Drill Bits App 20100012392 - Zahradnik; Anton F. ; et al. | 2010-01-21 |
| Rotary drill bits Grant 7,600,589 - Zahradnik , et al. October 13, 2 | 2009-10-13 |
| Methods of fabricating rotary drill bits Grant 7,594,454 - Zahradnik , et al. September 29, 2 | 2009-09-29 |
| Drill Bits And Tools For Subterranean Drilling App 20090107730 - Green; James C. ; et al. | 2009-04-30 |
| Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture Grant 7,472,764 - Zahradnik , et al. January 6, 2 | 2009-01-06 |
| Methods For Applying Wear-resistant Material To Exterior Surfaces Of Earth-boring Tools And Resulting Structures App 20080083568 - Overstreet; James L. ; et al. | 2008-04-10 |
| Methods Of Fabricating Rotary Drill Bits App 20080066581 - Zahradnik; Anton F. ; et al. | 2008-03-20 |
| Rotary Drill Bits App 20080066970 - Zahradnik; Anton F. ; et al. | 2008-03-20 |
| Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture App 20060213693 - Zahradnik; Anton F. ; et al. | 2006-09-28 |
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