The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2020
Filed:
Aug. 06, 2018
Varel International Ind., L.l.c., Carrollton, TX (US);
Steven Wayne Drews, Cypress, TX (US);
Peter Clark Wilson, Conroe, TX (US);
VAREL INTERNATIONAL IND., LLC., Carrollton, TX (US);
Abstract
A bit for drilling a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a leading cutter including: a substrate mounted in a pocket formed in a leading edge of the blade; and a cutting table made from a superhard material, mounted to the substrate, and having a non-planar working face with a cutting feature; and a backup cutter mounted in a lower face of the blade at a position trailing the leading cutter and made from a composite material including a ceramic or cermet matrix impregnated with a superhard material.