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. 19, 2018
Filed:
Mar. 12, 2014
Applicant:
Nov Downhole Eurasia Limited, Stonehouse, Gloucestershire, GB;
Inventors:
Terry Matthias, Upton St. Leonards, GB;
Haydn G. Smith, Dursley, GB;
Assignee:
NOV Downhole Eurasia Limited, Gloucestershire, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/567 (2006.01); E21B 10/573 (2006.01); B24D 18/00 (2006.01); C22C 1/05 (2006.01); B24D 3/00 (2006.01); B24D 3/10 (2006.01); B24D 99/00 (2010.01); C22C 26/00 (2006.01); C22C 29/06 (2006.01); C22C 29/14 (2006.01);
U.S. Cl.
CPC ...
E21B 10/567 (2013.01); B24D 18/0009 (2013.01); E21B 10/573 (2013.01); E21B 10/5735 (2013.01);
Abstract
A cutting element comprises a primary cutter including a first table of a hard material bonded to a first substrate of less hard form, the first substrate of the primary cutter having a recess formed therein in which a secondary cutter is located, the secondary cutter comprising a second table of a hard material bonded to a second substrate of less hard material, the first and second tables being spaced apart from one another by at least part of the first substrate.