Invention Grant
- Patent Title: Cutting elements formed from combinations of materials and bits incorporating the same
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Application No.: US16061097Application Date: 2016-11-24
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Publication No.: US10781643B2Publication Date: 2020-09-22
- Inventor: Yahua Bao , Yi Fang , Haibo Zhang , John Daniel Belnap , Youhe Zhang
- Applicant: Smith International, Inc.
- Applicant Address: US TX Houston
- Assignee: SMITH INTERNATIONAL, INC.
- Current Assignee: SMITH INTERNATIONAL, INC.
- Current Assignee Address: US TX Houston
- International Application: PCT/US2016/063709 WO 20161124
- International Announcement: WO2017/105804 WO 20170622
- Main IPC: E21B10/55
- IPC: E21B10/55 ; E21B10/56 ; E21B10/567
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.
Public/Granted literature
- US20180363383A1 CUTTING ELEMENTS FORMED FROM COMBINATIONS OF MATERIALS AND BITS INCORPORATING THE SAME Public/Granted day:2018-12-20
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