Patents by Inventor John J. Pierce

John J. Pierce 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).

  • Indexing drill bit
    Patent number: 10731420
    Abstract: A drill bit may include a bit body and at least two cones assemblies including at least two drive cylinders having at least two cones. The at least two cone assemblies are mounted on the bit body. The drill bit may also include an indexing mechanism coupled to the bit body and configured to rotate and lock at least one drive cylinder. A method of operating the drill bit may include providing fluid to the drill bit, rotating the drill string to drill formation, moving the indexing mechanism an axial distance within a central chamber of the drill bit, rotating the at least two indexable structures as the indexing mechanism moves, and locking the at least two indexable structures.
    Type: Grant
    Filed: March 27, 2016
    Date of Patent: August 4, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Scott S. Dahlgren, David R. Hall, Joshua J. Hanson, Jonathan D. Marshall, John J. Pierce, Yuelin Shen, Balasubramanian Durairajan, Geoffrey Charles Downton, Michael George Azar
  • Surgical retractor
    Patent number: 9936937
    Abstract: A surgical retractor device for retaining and/or moving internal organs during minimally invasive or laparoscopic surgery is provided. The surgical retractor can be a single continuous structure that includes a shaft. The shaft can branch into a first elongate finger with a first distal end opposite the shaft and a second elongate finger with a second distal end opposite the shaft. The retractor can further include a resilient lattice structure disposed between the first elongate finger and the second elongate finger. The retractor can have an expanded configuration and a collapsed configuration based on relative distance between the first distal end and the second distal end. When the retractor is in the collapsed configuration, spring force energy can be stored in the resilient lattice structure.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: April 10, 2018
    Assignee: Brigham Young University
    Inventors: Bryce Edmondson, Quentin Allen, Michael McCain, John J. Pierce, Terri Bateman, Larry Howell
  • INDEXING DRILL BIT
    Publication number: 20180087323
    Abstract: A drill bit may include a bit body and at least two cones assemblies including at least two drive cylinders having at least two cones. The at least two cone assemblies are mounted on the bit body. The drill bit may also include an indexing mechanism coupled to the bit body and configured to rotate and lock at least one drive cylinder. A method of operating the drill bit may include providing fluid to the drill bit, rotating the drill string to drill formation, moving the indexing mechanism an axial distance within a central chamber of the drill bit, rotating the at least two indexable structures as the indexing mechanism moves, and locking the at least two indexable structures.
    Type: Application
    Filed: March 27, 2016
    Publication date: March 29, 2018
    Inventors: Scott S. Dahlgren, David R. Hall, Joshua J. Hanson, Jonathan D. Marshall, John J. Pierce, Yuelin Shen, Balasubramanian Durairajan, Geoffrey Charles Downton, Michael George Azar
  • Axially stable retention mechanism for picks and cutting elements
    Patent number: 9890636
    Abstract: A cutting element assembly includes a cutting element partially disposed within a support and a retention mechanism disposed between the cutting element and the support, both the axial and radial dimensions of the retention mechanism being deformable.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: February 13, 2018
    Assignees: SCHLUMBERGER TECHNOLOGY CORPORATION, SMITH INTERNATIONAL, INC.
    Inventors: David R. Hall, Francis Leany, John J. Pierce, Youhe Zhang, Yuri Burhan
  • SURGICAL RETRACTOR
    Publication number: 20150065805
    Abstract: A surgical retractor device for retaining and/or moving internal organs during minimally invasive or laparoscopic surgery is provided. The surgical retractor can be a single continuous structure that includes a shaft. The shaft can branch into a first elongate finger with a first distal end opposite the shaft and a second elongate finger with a second distal end opposite the shaft. The retractor can further include a resilient lattice structure disposed between the first elongate finger and the second elongate finger. The retractor can have an expanded configuration and a collapsed configuration based on relative distance between the first distal end and the second distal end. When the retractor is in the collapsed configuration, spring force energy can be stored in the resilient lattice structure.
    Type: Application
    Filed: August 20, 2014
    Publication date: March 5, 2015
    Inventors: Bryce Edmondson, Quentin Allen, Michael McCain, John J. Pierce, Terri Bateman, Larry Howell
  • AXIALLY STABLE RETENTION MECHANISM FOR PICKS AND CUTTING ELEMENTS
    Publication number: 20140339882
    Abstract: A cutting element assembly includes a cutting element partially disposed within a support and a retention mechanism disposed between the cutting element and the support, both the axial and radial dimensions of the retention mechanism being deformable.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 20, 2014
    Applicants: SCHLUMBERGER TECHNOLOGY CORPORATION, SMITH INTERNATIONAL, INC.
    Inventors: David R. Hall, Francis Leany, John J. Pierce, Youhe Zhang, Yuri Burhan