Patents by Inventor John Matthew King

John Matthew King 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).

  • Downhole pressure pulse system
    Patent number: 11959349
    Abstract: A pressure pulse system includes a stator, a rotor rotatably positioned in the stator, and a valve assembly configured to induce a pressure pulse in response to rotation of the rotor within the stator, wherein the valve assembly includes a first valve plate coupled to one of the stator and the rotor and including a flow passage, and a second valve plate coupled to the other of the stator or the rotor to which the first valve plate is not coupled and comprising a first flow passage and a second flow passage that is spaced from the first flow passage, wherein the valve assembly provides a first flowpath and a second flowpath between the flow passage of the first valve plate and the second flow passage of the second valve plate.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: April 16, 2024
    Assignee: National Oilwell Varco, L.P.
    Inventors: Paul Victor Oberlin, John Matthew King
  • DOWNHOLE PRESSURE PULSE SYSTEM
    Publication number: 20230027048
    Abstract: A pressure pulse system includes a stator, a rotor rotatably positioned in the stator, and a valve assembly configured to induce a pressure pulse in response to rotation of the rotor within the stator, wherein the valve assembly includes a first valve plate coupled to one of the stator and the rotor and including a flow passage, and a second valve plate coupled to the other of the stator or the rotor to which the first valve plate is not coupled and comprising a first flow passage and a second flow passage that is spaced from the first flow passage, wherein the valve assembly provides a first flowpath and a second flowpath between the flow passage of the first valve plate and the second flow passage of the second valve plate.
    Type: Application
    Filed: January 5, 2021
    Publication date: January 26, 2023
    Applicant: National Oilwell Varco L.P.
    Inventors: Paul Victor Oberlin, John Matthew King