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:
Jan. 01, 2013
Filed:
Aug. 11, 2009
Applicants:
Alan W. Lockstedt, Magnolia, TX (US);
Gregory T. Lockwood, Pearland, TX (US);
Inventors:
Alan W. Lockstedt, Magnolia, TX (US);
Gregory T. Lockwood, Pearland, TX (US);
Assignee:
Smith International, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drill bit that includes a bit body having a plurality of blades extending radially therefrom, wherein at least a portion of the bit body comprises a first matrix region comprising a plurality of primary carbide particles having an average mean free path of at least about 10 microns; and at least one cutting element for engaging a formation disposed on at least one of the plurality of blades is disclosed.