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:
Jun. 04, 2019
Filed:
Mar. 12, 2014
Applicant:
Smith International, Inc., Houston, TX (US);
Inventors:
Michael G. Azar, The Woodlands, TX (US);
Bala Durairajan, Sugar Land, TX (US);
Madapusi K. Keshavan, The Woodlands, TX (US);
Assignee:
SMITH INTERNATIONAL, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/567 (2006.01); E21B 10/43 (2006.01); E21B 10/55 (2006.01);
U.S. Cl.
CPC ...
E21B 10/5673 (2013.01); E21B 10/43 (2013.01); E21B 10/55 (2013.01);
Abstract
A cutting tool may include a tool body, blades extending from the tool body, and primary cutting elements and backup cutting elements are on each of blades. The backup cutting elements may be behind and at approximately the same radial distance from the axis of the tool body as a corresponding primary cutting element, where the primary cutting elements include cutting elements having a first non-planar shape and the backup cutting elements include cutting elements having a second, different non-planar shape.