Earth-boring tools and methods of forming such earth-boring tools
US9200483B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2014 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Oct 3, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/602
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Earth-boring drill bits may include a bit body including blades extending radially over a face of the earth-boring drill bit and cutting elements attached to each blade. Only cutting elements including planar cutting faces may be attached to at least one of the blades. Only cutting elements including nonplanar cutting faces may be attached to at least another of the blades. Only cutting elements including planar cutting faces or only cutting elements including nonplanar cutting faces may be attached to each of the blades. Only cutting elements including nonplanar cutting faces may be attached to a number of the blades that may be unequal to a number of the blades to which only cutting elements comprising planar cutting faces may be attached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.