Patents by Inventor Anne-Grethe Slotnaes

Anne-Grethe Slotnaes 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).

  • Polycrystalline diamond compacts, methods of fabricating the same, and methods of using the same
    Patent number: 11865672
    Abstract: PDCs, methods of fabricating the PDCs, and methods of using the PDCs are disclosed herein. The PDCs include a PCD table bonded to a substrate. The PCD table includes an upper surface having a plurality of recessed features formed therein. The plurality of recessed features are configured to attract at least some cracks that form in the PCD table. As such, the plurality of recessed features limit or prevent crack propagation into other portions of the PCD table and limit a volume of the PCD table that spalls. Methods of fabricating the PDCs include partially leaching the PCD table and, after leaching the PCD table, forming the plurality of recessed features in the upper surface thereof. Method of using the PDCs include rotating a PDC that has spalled relative to a rotary drill bit such that a portion of the upper surface of the PDC that has not spalled forms a cutting surface thereof.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: January 9, 2024
    Assignee: US Synthetic Corporation
    Inventors: Daniel Call Mortensen, Lindsay Sue Patton, Trevor Allen Olsen, Casey Wade Swan, Shawn Casey Scott, Matthew Kimball Baker, Anne-Grethe Slotnaes, Kenneth E. Bertagnolli, Jiang Qian, Jason Lott, Joshua Adam Hawks
  • SUPERABRASIVE COMPACTS, METHODS OF MAKING THE SAME, AND APPARATUSES USING THE SAME
    Publication number: 20200256133
    Abstract: Embodiments disclosed herein relate to superabrasive compacts, methods of making the same, and drill bits incorporating the same. For example, embodiments of a superabrasive compact disclosed herein (e.g., a PDC) may be formed by providing a superabrasive compact. The superabrasive compact includes a superabrasive body and a cemented carbide substrate bonded to the superabrasive body. The cemented carbide substrate includes a base surface, an interfacial surface bonded to the superabrasive body, and at least one peripheral surface extending between the base surface and the interfacial surface.
    Type: Application
    Filed: February 11, 2020
    Publication date: August 13, 2020
    Inventors: Anne-Grethe Slotnaes, Daniel Scott, Debkumar Mukhopadhyay, Jeremy B. Lynn, Jiang Qian
  • Polycrystalline diamond compacts, methods of fabricating the same, and methods of using the same
    Patent number: 10399206
    Abstract: PDCs, methods of fabricating the PDCs, and methods of using the PDCs are disclosed herein. The PDCs include a PCD table bonded to a substrate. The PCD table includes an upper surface having a plurality of recessed features formed therein. The plurality of recessed features are configured to attract at least some cracks that form in the PCD table. As such, the plurality of recessed features limit or prevent crack propagation into other portions of the PCD table and limit a volume of the PCD table that spalls. Methods of fabricating the PDCs include partially leaching the PCD table and, after leaching the PCD table, forming the plurality of recessed features in the upper surface thereof. Method of using the PDCs include rotating a PDC that has spalled relative to a rotary drill bit such that a portion of the upper surface of the PDC that has not spalled forms a cutting surface thereof.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: September 3, 2019
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Daniel Call Mortensen, Lindsay Sue Patton, Trevor Allen Olsen, Casey Wade Swan, Shawn Casey Scott, Matthew Kimball Baker, Anne-Grethe Slotnaes, Kenneth E. Bertagnolli, Jiang Qian, Jason Lott, Joshua Adam Hawks