Patents by Inventor Zhao Yunliang

Zhao Yunliang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Composite polycrystalline diamond body
    Patent number: 10214967
    Abstract: In this novel PDC cutter, diamond powders of different composition and/or different grain size, are distributed, shaped, and compacted with a novel pressing tool, in multiple stages, spatially arranged into different regions of the PDC diamond body, then HPHT sintered to form one PDC body with spatially varying hardness, toughness and thermal resistance.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: February 26, 2019
    Inventors: Samer Alkhalaileh, David Briggs, Jiang Xiaole, Zhao Yunliang
  • COMPOSITE POLYCRYSTALLINE DIAMOND BODY
    Publication number: 20140237906
    Abstract: In this novel PDC cutter, diamond powders of different composition and/or different grain size, are distributed, shaped, and compacted with a novel pressing tool, in multiple stages, spatially arranged into different regions of the PDC diamond body, then HPHT sintered to form one PDC body with spatially varying hardness, toughness and thermal resistance.
    Type: Application
    Filed: April 9, 2014
    Publication date: August 28, 2014
    Applicant: INTERNATIONAL DIAMOND SERVICES, INC.
    Inventors: Samer ALKHALAILEH, David BRIGGS, Jiang XIAOLE, Zhao YUNLIANG
  • COMPOSITE POLYCRYSTALLINE DIAMOND BODY
    Publication number: 20120241225
    Abstract: In this novel PDC cutter, diamond powders of different composition and/or different grain size, are distributed, shaped, and compacted with a novel pressing tool, in multiple stages, spatially arranged into different regions of the PDC diamond body, then HPHT sintered to form one PDC body with spatially varying hardness, toughness and thermal resistance more optimal for machining, drilling and/or cutting of hard rock and stone.
    Type: Application
    Filed: March 25, 2011
    Publication date: September 27, 2012
    Applicant: INTERNATIONAL DIAMOND SERVICES, INC.
    Inventors: David Briggs, Samer Alkhalaileh, Jiang Xiaole, Zhao Yunliang