Patents by Inventor Biju Pillai Kumar

Biju Pillai Kumar 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).

  • Systems and methods of fabrication and use of wear-resistant materials
    Patent number: 10906104
    Abstract: Discussed herein are systems and methods of forming hardfacing coatings and films containing Q-carbon diamond particles for use in downhole drilling tooling and other tools where wear-resistant coating is desirable. The Q-carbon diamond-containing layers may be coated with matrix material and/or disposed in a matrix to form the coating, or the Q-carbon diamond layer may be formed directly from a diamond-like-carbon on a substrate.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: February 2, 2021
    Assignee: NATIONAL OILWELL DHT, L.P.
    Inventors: Biju Pillai Kumar, Bradley S. Ivie, Wei Liu, Anil Kumar, Russell C. Gilleylen, Michael D. Hughes, Jagdish Narayan
  • Cutter Elements for Drill Bits and Methods for Fabricating Same
    Publication number: 20190136374
    Abstract: A method of fabricating a PCD cutter element including a diamond table including a plurality of coated diamond particles fabricated using an atomic layer deposition (ALD) process.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 9, 2019
    Applicant: National Oilwell DHT, L.P.
    Inventors: Guodong Zhan, Biju Pillai Kumar, Russell C. Gilleylen, Michael D. Hughes, Xinhua Liang
  • Cutter elements for drill bits and methods for fabricating same
    Patent number: 10214812
    Abstract: A method of fabricating a PCD cutter element including a diamond table including a plurality of coated diamond particles fabricated using an atomic layer deposition (ALD) process.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: February 26, 2019
    Assignee: NATIONAL OILWELL DHT, L.P.
    Inventors: Guodong Zhan, Biju Pillai Kumar, Russell C. Gilleylen, Michael D. Hughes, Xinhua Liang
  • Systems and Methods of Fabrication and Use of Wear-Resistant Materials
    Publication number: 20190022759
    Abstract: Discussed herein are systems and methods of forming hardfacing coatings and films containing Q-carbon diamond particles for use in downhole drilling tooling and other tools where wear-resistant coating is desirable. The Q-carbon diamond-containing layers may be coated with matrix material and/or disposed in a matrix to form the coating, or the Q-carbon diamond layer may be formed directly from a diamond-like-carbon on a substrate.
    Type: Application
    Filed: January 27, 2017
    Publication date: January 24, 2019
    Applicant: National Oilwell DHT, L.P.
    Inventors: Biju Pillai Kumar, Bradley S. Ivie, Wei Liu, Anil Kumar, Russell C. Gilleylen, Michael D. Hughes
  • Cutter Elements for Drill Bits and Methods for Fabricating Same
    Publication number: 20180100234
    Abstract: A method of fabricating a PCD cutter element including a diamond table including a plurality of coated diamond particles fabricated using an atomic layer deposition (ALD) process.
    Type: Application
    Filed: May 13, 2016
    Publication date: April 12, 2018
    Applicant: National Oilwell DHT, L.P.
    Inventors: Guodong Zhan, Biju Pillai Kumar, Russell C. Gilleylen, Michael D. Hughes, Xinhua Liang