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:
Oct. 16, 2018
Filed:
Mar. 04, 2011
Nicholas J. Lyons, Houston, TX (US);
Danny E. Scott, Montgomery, TX (US);
Anthony A. Digiovanni, Houston, TX (US);
Derek L. Nelms, Tomball, TX (US);
Nicholas J. Lyons, Houston, TX (US);
Danny E. Scott, Montgomery, TX (US);
Anthony A. DiGiovanni, Houston, TX (US);
Derek L. Nelms, Tomball, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Polycrystalline elements include a substrate and a polycrystalline table attached to an end of the substrate. The polycrystalline table includes a first region of superabrasive material having a first permeability and at least a second region of superabrasive material having a second, lesser permeability, the at least a second region being interposed between the substrate and the first region. Methods of forming a polycrystalline element involve attaching a polycrystalline table including a first region of superabrasive material having a first permeability and at least a second region of superabrasive material having a second, lesser permeability to an end of a substrate, the at least a second region being interposed between the first region and the substrate. Catalyst material is removed from at least the first region of the polycrystalline table.