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:
Feb. 25, 2020
Filed:
Nov. 25, 2014
National Oilwell Dht, L.p., Houston, TX (US);
Deepthi Raj Setlur, Cypress, TX (US);
Michael D. Hughes, Conroe, TX (US);
Mark Jonathan Francis, Randwick, GB;
Harold A. Sreshta, Conroe, TX (US);
Guodong Zhan, Spring, TX (US);
Russell C. Gilleylen, Spring, TX (US);
JiinJen Albert Sue, The Woodlands, TX (US);
NATIONAL OILWELL DHT, L.P., Conroe, TX (US);
Abstract
A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate.