Cutting elements formed from combinations of materials and bits incorporating the same
US10781643B2 · kind B2 · utility
0Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2016 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Mar 11, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/567
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutting element has an ultrahard layer on a substrate, the ultrahard layer having a non-planar working surface. The non-planar working surface is formed from a first region and a second region, where the first region encompasses at least a cutting edge or tip of the cutting element and has a differing composition than the second region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.