Patents by Inventor Ronald Garr

Ronald Garr 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).

  • Injection valve and method
    Patent number: 11414956
    Abstract: An injection valve including a primary valve having a flapper, a flapper seat configured to seat the flapper, and a flow tube disposed to move relative to the flapper and thereby cause the flapper to be unseated from the flapper seat, a secondary valve disposed within the flow tube, the secondary valve including a secondary housing, and an openable and closable flow port through the secondary housing, and an annular pressure-drop ring disposed between the secondary housing and the flow tube.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: August 16, 2022
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: John Burris, James Sloan, Ronald Garr