Patents by Inventor Adondria M. Parker

Adondria M. Parker 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).

  • Apparatus and methods for high pressure leaching of polycrystalline diamond cutter elements
    Patent number: 9981362
    Abstract: A method for leaching a PCD table for a cutter element includes (a) positioning a PCD table within a leaching chamber. The method also includes (b) submerging the PCD table in an acid within the leaching chamber. In addition, the method includes (c) sealing the leaching chamber. Further, the method includes (d) increasing the pressure within the leaching chamber to a pressure greater than or equal to 20,000 psi after (c).
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: May 29, 2018
    Assignee: NATIONAL OILWELL VARCO, L.P.
    Inventors: Russell Gilleylen, Guodong Zhan, Sean Donald, Haresh Ghansyam, James R. Streater, Adondria M. Parker
  • APPARATUS AND METHODS FOR HIGH PRESSURE LEACHING OF POLYCRYSTALLINE DIAMOND CUTTER ELEMENTS
    Publication number: 20150367483
    Abstract: A method for leaching a PCD table for a cutter element includes (a) positioning a PCD table within a leaching chamber. The method also includes (b) submerging the PCD table in an acid within the leaching chamber. In addition, the method includes (c) sealing the leaching chamber. Further, the method includes (d) increasing the pressure within the leaching chamber to a pressure greater than or equal to 20,000 psi after (c).
    Type: Application
    Filed: December 30, 2013
    Publication date: December 24, 2015
    Applicant: National Oilwell Varco, L.P.
    Inventors: Russell Gilleylen, Guodong Zhan, Sean Donald, Haresh Ghansyam, James R. Streater, Adondria M. Parker