Patents by Inventor Christopher F. Johnson

Christopher F. Johnson 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).

  • Patent number: 11962079
    Abstract: The embodiments include an array in intimate adjacent contact with a substrate foundation. The array has a plurality of radio frequency (RF) witness films overlain on the substrate foundation. Each RF witness film is a unit cell defined in a three-dimensional coordinate frame of reference, and is centered at an origin of the three-dimensional coordinate frame of reference. Each RF witness film in the plurality of RF witness films is equally-spaced from adjacent RF witness films.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: April 16, 2024
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Zachary A. Sechrist, Christopher G. Yelton, Mark B. Moran, Linda F Johnson, Joseph E. Estevez, Gretchen H. Hefley
  • Patent number: 11912644
    Abstract: Provided are processes for the preparation of (S)-tert-butyl 4,5-diamino-5-oxopentanoate, or a salt, solvate, hydrate, enantiomer, mixture of enantiomers, or isotopologue thereof. Also provided are solid forms of various intermediates and products obtained from the processes.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: February 27, 2024
    Assignee: Celgene Corporation
    Inventors: John F. Traverse, Michael J. Zacuto, Weihong Zhang, Kirsten Faye Johnson, Maryll E. Geherty, Christopher Marton
  • Patent number: 10197490
    Abstract: An apparatus for measuring volumes of two or more immiscible fluids, a lighter fluid and a heavier fluid, in a core sample includes a fluid separator and two volume pressure actuators. The lighter fluid accumulates in an upper portion of the fluid separator and the heavier fluid accumulates in a lower portion of the fluid separator, with a meniscus forming between the lighter fluid and the heavier fluid. The first and second volume pressure actuators have fluid volume encoders that determine a net volumetric flow of the fluids to and from the fluid separator. The first and second volume pressure actuators also collectively maintain constant back pressure on the fluid separator and maintain the meniscus between the two immiscible fluids in the fluid separator at a constant position.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: February 5, 2019
    Assignee: DCI CORPORATION
    Inventors: Christopher F. Johnson, Christopher Scott Johnson, Andrew C. Johnson, Steven W. Derr
  • Patent number: 9693921
    Abstract: A patient transfer sled has a support structure including at least one air cushion adjacent a major surface thereof. The air cushion includes a flexible material at least partially surrounding a rigid material, and a portion of the flexible material has a plurality of holes extending therethrough. Systems for patient transfer may include a support surface, such as a table, a patient transfer sled having at least one air cushion, and a source of pressurized air. Methods for moving a patient relative to a support surface include positioning a patient on a patient transfer sled having at least one air cushion, and inflating the air cushion with air to form a sheet of flowing air between the patient transfer sled and the support surface. The methods may be used, for example, to move a patient on an air film over a surface within a system.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: July 4, 2017
    Assignee: DIACOR, Inc.
    Inventors: Michael R. Koger, Kevin R. Anderson, Frederic A. Gibbs, Jr., Christopher F. Johnson
  • Publication number: 20160356694
    Abstract: An apparatus for measuring volumes of two or more immiscible fluids, a lighter fluid and a heavier fluid, in a core sample includes a fluid separator and two volume pressure actuators. The lighter fluid accumulates in an upper portion of the fluid separator and the heavier fluid accumulates in a lower portion of the fluid separator, with a meniscus forming between the lighter fluid and the heavier fluid. The first and second volume pressure actuators have fluid volume encoders that determine a net volumetric flow of the fluids to and from the fluid separator. The first and second volume pressure actuators also collectively maintain constant back pressure on the fluid separator and maintain the meniscus between the two immiscible fluids in the fluid separator at a constant position.
    Type: Application
    Filed: May 16, 2016
    Publication date: December 8, 2016
    Applicant: DCI Corporation
    Inventors: Christopher F. Johnson, Christopher Scott Johnson, Andrew C. Johnson, Steven W. Derr
  • Patent number: 9382762
    Abstract: A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: July 5, 2016
    Assignee: US Synthetic Corporation
    Inventors: Craig H. Cooley, Timothy N. Sexton, S. Barrett Peterson, Jeffrey Lund, Christopher F. Johnson
  • Publication number: 20150152688
    Abstract: A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 4, 2015
    Applicant: US SYNTHETIC CORPORATION
    Inventors: Craig H. Cooley, Timothy N. Sexton, S. Barrett Peterson, Jeffrey Lund, Christopher F. Johnson
  • Patent number: 8931582
    Abstract: A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 13, 2015
    Assignee: US Synthetic Corporation
    Inventors: Craig H. Cooley, Timothy N. Sexton, S. Barrett Peterson, Jeffrey Lund, Christopher F. Johnson
  • Publication number: 20140143950
    Abstract: A patient transfer sled has a support structure including at least one air cushion adjacent a major surface thereof The air cushion includes a flexible material at least partially surrounding a rigid material, and a portion of the flexible material has a plurality of holes extending therethrough. Systems for patient transfer may include a support surface, such as a table, a patient transfer sled having at least one air cushion, and a source of pressurized air. Methods for moving a patient relative to a support surface include positioning a patient on a patient transfer sled having at least one air cushion, and inflating the air cushion with air to form a sheet of flowing air between the patient transfer sled and the support surface. The methods may be used, for example, to move a patient on an air film over a surface within a system.
    Type: Application
    Filed: January 29, 2014
    Publication date: May 29, 2014
    Applicant: DIACOR, Inc.
    Inventors: Michael R. Koger, Kevin R. Anderson, Frederic A. Gibbs, JR., Christopher F. Johnson
  • Patent number: 8656528
    Abstract: A patient transfer board including an elongated board body that extends lengthwise along a longitudinal axis between leading and trailing ends of the board body. The transfer board has a top side and an underside of the board body. The underside includes first and second side edges that extend along the longitudinal axis. The underside includes alignment slots having respective openings at the first side edge. The alignment slots are defined by interior sidewalls. The alignment slots are configured to receive reference elements of the patient table through the respective openings when the transfer board is moved in a lateral direction that is generally transverse to the longitudinal axis. The sidewalls are configured to engage the corresponding reference elements and direct the transfer board toward a designated position.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: February 25, 2014
    Assignee: General Electric Company
    Inventors: Benjamin Perelman, Liyong Wu, Roman I. Dachniwskyj, Peter S. Crandall, Almos A. Elekes, Kevin R. Anderson, Christopher F. Johnson, Andrew C. Johnson, Michael R. Koger
  • Patent number: 8640279
    Abstract: A patient transfer sled having a support structure including at least one air cushion partially disposed within at least one pocket, and a fluid passageway extending through the support structure into the air cushion. Systems for patient transfer that may include a support surface, such as a table, a patient transfer sled having at least one air cushion, and a source of pressurized air. Methods for moving a patient relative to a support surface include positioning a patient on a patient transfer sled having at least one air cushion, and inflating the air cushion with air to form a sheet of flowing air between the patient transfer sled and the support surface. The methods may be used, for example, to move a patient on an air film over a surface within a system.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: February 4, 2014
    Assignee: Diacor, Inc.
    Inventors: Michael R. Koger, Christopher F. Johnson, Kevin R. Anderson, Frederic A. Gibbs, Jr.
  • Publication number: 20140020956
    Abstract: A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.
    Type: Application
    Filed: September 20, 2013
    Publication date: January 23, 2014
    Applicant: US SYNTHETHIC CORPORATION
    Inventors: Craig H. Cooley, Timothy N. Sexton, S. Barrett Peterson, Jeffrey Lund, Christopher F. Johnson
  • Publication number: 20130318707
    Abstract: A patient transfer board including an elongated board body that extends lengthwise along a longitudinal axis between leading and trailing ends of the board body. The transfer board has a top side and an underside of the board body. The underside includes first and second side edges that extend along the longitudinal axis. The underside includes alignment slots having respective openings at the first side edge. The alignment slots are defined by interior sidewalls. The alignment slots are configured to receive reference elements of the patient table through the respective openings when the transfer board is moved in a lateral direction that is generally transverse to the longitudinal axis. The sidewalls are configured to engage the corresponding reference elements and direct the transfer board toward a designated position.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 5, 2013
    Inventors: Benjamin Perelman, Liyong Wu, Roman I. Dachniwshyj, Peter S. Crandall, Almos A. Elekes, Kevin R. Anderson, Christopher F. Johnson, Andrew C. Johnson, Michael R. Koger
  • Publication number: 20130283525
    Abstract: A patient transfer sled having a support structure including at least one air cushion partially disposed within at least one pocket, and a fluid passageway extending through the support structure into the air cushion. Systems for patient transfer that may include a support surface, such as a table, a patient transfer sled having at least one air cushion, and a source of pressurized air. Methods for moving a patient relative to a support surface include positioning a patient on a patient transfer sled having at least one air cushion, and inflating the air cushion with air to form a sheet of flowing air between the patient transfer sled and the support surface. The methods may be used, for example, to move a patient on an air film over a surface within a system.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Inventors: Michael R. Koger, Christopher F. Johnson, Kevin R. Anderson, Frederic A. Gibbs, JR.
  • Patent number: 8561728
    Abstract: A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: October 22, 2013
    Assignee: US Synthetic Corporation
    Inventors: Craig H. Cooley, Timothy N. Sexton, S. Barrett Peterson, Jeffrey Lund, Christopher F. Johnson
  • Patent number: 8490226
    Abstract: A patient transfer sled having a support structure including at least one air cushion partially disposed within at least one pocket, and a fluid passageway extending through the support structure into the air cushion. Systems for patient transfer that may include a support surface, such as a table, a patient transfer sled having at least one air cushion, and a source of pressurized air. Methods for moving a patient relative to a support surface include positioning a patient on a patient transfer sled having at least one air cushion, and inflating the air cushion with air to form a sheet of flowing air between the patient transfer sled and the support surface. The methods may be used, for example, to move a patient on an air film over a surface within a system.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: July 23, 2013
    Assignee: DIACOR, Inc.
    Inventors: Michael R. Koger, Christopher F. Johnson, Kevin R. Anderson, Frederic A. Gibbs, Jr.
  • Publication number: 20120234609
    Abstract: A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.
    Type: Application
    Filed: June 4, 2012
    Publication date: September 20, 2012
    Applicant: US SYNTHETHIC CORPORATION
    Inventors: Craig H. Cooley, Timothy N. Sexton, S. Barrett Peterson, Jeffrey Lund, Christopher F. Johnson
  • Patent number: 8210285
    Abstract: A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: July 3, 2012
    Assignee: US Synthetic Corporation
    Inventors: Craig H. Cooley, Timothy N. Sexton, S. Barrett Peterson, Jeffrey Lund, Christopher F. Johnson
  • Publication number: 20120048622
    Abstract: A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.
    Type: Application
    Filed: November 4, 2011
    Publication date: March 1, 2012
    Applicant: US SYNTHETIC CORPORATION
    Inventors: Craig H. Cooley, Timothy N. Sexton, S. Barrett Peterson, Jeffrey Lund, Christopher F. Johnson
  • Patent number: 8061452
    Abstract: A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: November 22, 2011
    Assignee: US Synthetic Corporation
    Inventors: Craig H. Cooley, Timothy N. Sexton, S. Barrett Peterson, Jeffrey Lund, Christopher F. Johnson