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:
Aug. 10, 2010
Filed:
May. 15, 2008
Kumar T. Kembaiyan, The Woodlands, TX (US);
Madapusi K. Keshavan, The Woodlands, TX (US);
Alysia C. White, Fulshear, TX (US);
Brian A. White, Houston, TX (US);
Kumar T. Kembaiyan, The Woodlands, TX (US);
Madapusi K. Keshavan, The Woodlands, TX (US);
Alysia C. White, Fulshear, TX (US);
Brian A. White, Houston, TX (US);
Smith International, Inc., Houston, TX (US);
Abstract
A drill bit having a bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade, at least one cutter disposed in the at least one cutter pocket, hardfacing applied to at least a selected portion of the drill bit is shown and described. The hardfacing includes a first hardfacing layer disposed on the selected portion of the drill bit, a second hardfacing layer disposed on the first hardfacing layer, wherein the first hardfacing layer has a hardness different than a hardness of the second hardfacing layer.