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. 28, 2020
Filed:
Dec. 11, 2016
Applicant:
Smith International, Inc., Houston, TX (US);
Inventors:
Feng Yu, Lindon, UT (US);
Jeffrey Bruce Lund, Salt Lake City, UT (US);
Assignee:
SMITH INTERNATIONAL, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/573 (2006.01); C22C 26/00 (2006.01); E21B 10/43 (2006.01);
U.S. Cl.
CPC ...
E21B 10/5735 (2013.01); C22C 26/00 (2013.01); E21B 10/43 (2013.01);
Abstract
PCD constructions as disclosed comprise a ultra-hard body attached with a metallic substrate along a substrate extending between the body and the substrate. The construction includes a protective feature or element that is configured to protect a metal rich region or zone existing in the construction from unwanted effects of corrosion or erosion. The protective element extends from the body over the interface and along a portion of the substrate and may be integral with the.