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:
Dec. 10, 2013
Filed:
Feb. 18, 2010
Gregory T Lockwood, Pearland, TX (US);
Youhe Zhang, Spring, TX (US);
Gregory T Lockwood, Pearland, TX (US);
Youhe Zhang, Spring, TX (US);
Smith International, Inc., Houston, TX (US);
Abstract
A drill bit that includes a bit body having a plurality of blades extending radially therefrom, at least a portion of the plurality of blades comprises a first matrix region comprising a plurality of first carbide particles separated by a first binder phase, each of the first carbide particles comprising a mixture of WC and WC, and wherein the first matrix region has less than about 5 percent by volume, based on the total volume of the first matrix region, of complex metal carbides dispersed in the first binder phase; and at least one cutting element for engaging a formation disposed on at least one of the plurality of blades.