Patents by Inventor Christopher A. Barrett

Christopher A. Barrett 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: 10744695
    Abstract: Disclosed are compositions of a fused filament fabrication (FFF) composite filament having embedded functional materials in a thermoplastic matrix. Methods of making the composite filaments are also disclosed. In one example, a FFF composite filament incorporates a MOF, in an amount greater than 10% by mass, dispersed in a matrix polymer. One example of a method of synthesizing FFF composite filaments involves mixing a suspension that has a MOF with a matrix polymer solution to yield a polymer-MOF mixture. The mixture is cast and dried into a solid composite material, which is formed a FFF composite filament having the MOF in an amount greater than 10% by mass.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: August 18, 2020
    Assignee: BATTELLE MEMORIAL INSTITUTE
    Inventors: Rebecca L. Erikson, Josef F. Christ, Zachary C. Kennedy, Kent A. Evans, Christopher A. Barrett, Satish K. Nune
  • Publication number: 20190217517
    Abstract: Disclosed are compositions of a fused filament fabrication (FFF) composite filament having embedded functional materials in a thermoplastic matrix. Methods of making the composite filaments are also disclosed. In one example, a FFF composite filament incorporates a MOF, in an amount greater than 10% by mass, dispersed in a matrix polymer. One example of a method of synthesizing FFF composite filaments involves mixing a suspension that has a MOF with a matrix polymer solution to yield a polymer-MOF mixture. The mixture is cast and dried into a solid composite material, which is formed a FFF composite filament having the MOF in an amount greater than 10% by mass.
    Type: Application
    Filed: January 18, 2018
    Publication date: July 18, 2019
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Rebecca L. Erikson, Josef F. Christ, Zachary C. Kennedy, Kent A. Evans, Christopher A. Barrett, Satish K. Nune
  • Patent number: 10221321
    Abstract: Compositions and processes are disclosed for forming hydrophobic coatings and lubricant-infused surface coatings. Coatings may be applied to various substrates without prior chemical or temperature treatment of the substrates and over large and irregular surfaces. Coatings are self-healing, anti-fouling, and have enhanced lifetimes.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: March 5, 2019
    Assignee: Battelle Memorial Institute
    Inventors: Raymond S. Addleman, Curtis J. Larimer, Christopher A. Barrett, George T. Bonheyo, Robert T. Jeters, Eric M. Winder
  • Patent number: 10051650
    Abstract: Methods, systems, and devices are described for wireless communication. A method may include maintaining a plurality of conflict entries, each conflict entry indicating a first frequency range associated with interference by a first radio access technology (RAT) and a second frequency range associated with interference by a second RAT. Each conflict entry may indicate a first frequency range of component carriers of a RAT operating in carrier aggregation mode. Active coexistence conflicts may be identified between the first and second RATs based in part on the conflict entries and current radio conditions. The method may also include selecting one of the active coexistence conflicts for conflict mitigation. In some examples, a subset of the conflict entries are organized into an intermodulation group. The method may also include determining a conflict priority for each conflict entry associated with an active coexistence conflict. In some examples, conflict priorities may be aggregated.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: August 14, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Chetan Khosla, Brian Theodore Lubars, Christopher A. Barrett, Temitope Akinsipe
  • Publication number: 20170144373
    Abstract: Methods and systems for three-dimensional printing of conductive materials are disclosed. A molten filament containing a conductive material is extruded from a print head of a three-dimensional printer. A magnetic field is applied to the print head. The magnetic field may be a magnet or an electromagnet. The magnetic field may be applied at the tip of the extruder, nozzle, or nozzle tip of the print head.
    Type: Application
    Filed: November 23, 2015
    Publication date: May 25, 2017
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Rebecca L. Erikson, Janine R. Hutchison, Christopher A. Barrett, Josef F. Christ
  • Publication number: 20170058130
    Abstract: Compositions and processes are disclosed for forming hydrophobic coatings and lubricant-infused surface coatings. Coatings may be applied to various substrates without prior chemical or temperature treatment of the substrates and over large and irregular surfaces. Coatings are self-healing, anti-fouling, and have enhanced lifetimes.
    Type: Application
    Filed: August 28, 2015
    Publication date: March 2, 2017
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Raymond S. Addleman, Curtis J. Larimer, Christopher A. Barrett, George T. Bonheyo, Robert T. Jeters, Eric M. Winder
  • Publication number: 20160338071
    Abstract: Methods, systems, and devices are described for wireless communication. A method may include maintaining a plurality of conflict entries, each conflict entry indicating a first frequency range associated with interference by a first radio access technology (RAT) and a second frequency range associated with interference by a second RAT. Each conflict entry may indicate a first frequency range of component carriers of a RAT operating in carrier aggregation mode. Active coexistence conflicts may be identified between the first and second RATs based in part on the conflict entries and current radio conditions. The method may also include selecting one of the active coexistence conflicts for conflict mitigation. In some examples, a subset of the conflict entries are organized into an intermodulation group. The method may also include determining a conflict priority for each conflict entry associated with an active coexistence conflict. In some examples, conflict priorities may be aggregated.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Inventors: Chetan Khosla, Brian Theodore Lubars, Christopher A. Barrett, Temitope Akinsipe
  • Patent number: 9235251
    Abstract: The aspects enable a computing device or microprocessor to determine a low power mode that provides the most system power savings by placing selected resources in a low power mode while continuing to function reliably, depending upon the resources not in use, acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. Aspects provide a mechanism for determining an optimal low power configuration made up of a set of low power modes for the various resources within the computing device by determining which low power modes are valid at the time the processor enters an idle state, ranking the valid low power modes by expected power savings given the current device conditions, determining which valid low power mode provides the greatest power savings while meeting the latency requirements, and selecting a particular low power mode for each resource to enter.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: January 12, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Norman S. Gargash, Andrew J. Frantz, Brian J. Salsbery, Christopher A. Barrett
  • Patent number: 9028957
    Abstract: Embodiments of the present disclosure relate to the preparation of colloidal dispersions or suspensions of inorganic materials with nano-sized and nano-structured morphologies, preferably the nanosheet form, compositions produced by this method, and the like.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: May 12, 2015
    Assignee: University of Georgia Research Foundation, Inc.
    Inventors: Tina T. Salguero, Darrah Johnson-McDaniel, Christopher A. Barrett
  • Publication number: 20140072790
    Abstract: Embodiments of the present disclosure relate to the preparation of colloidal dispersions or suspensions of inorganic materials with nano-sized and nano-structured morphologies, preferably the nanosheet form, compositions produced by this method, and the like.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicant: UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC.
    Inventors: Tina T. Salguero, Darrah Johnson-McDaniel, Christopher A. Barrett
  • Publication number: 20130290758
    Abstract: The aspects enable a computing device or microprocessor to determine a low power mode that provides the most system power savings by placing selected resources in a low power mode while continuing to function reliably, depending upon the resources not in use, acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. Aspects provide a mechanism for determining an optimal low power configuration made up of a set of low power modes for the various resources within the computing device by determining which low power modes are valid at the time the processor enters an idle state, ranking the valid low power modes by expected power savings given the current device conditions, determining which valid low power mode provides the greatest power savings while meeting the latency requirements, and selecting a particular low power mode for each resource to enter.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Inventors: Christopher QUICK, Tracy Ulmer, Andrew J. Frantz, Christopher A. Barrett, Brian J. Salsbery, Norman S. Gargash
  • Publication number: 20130120010
    Abstract: A measurement instrument includes selectable channels for simultaneously measuring current on a power rail/load of a device under test. Multiplexor circuitry can be controlled to select power rails/loads for measurement and to couple unselected power rails to bypass the measurement circuitry. Active loads are provided in the measurement circuitry to compensate for loading by the measurement circuitry. The active loads cause current on a source side of a selected power rail/load to match current measured on a load side of the selected power rail/load during power measurements.
    Type: Application
    Filed: May 21, 2012
    Publication date: May 16, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Clement B. Edgar, III, Brett L. Christensen, Christopher A. Barrett, Lakshmi P. Baskaran, Christopher F. Einsmann, Karthik N. Moncombu Ramakrishnan, Alfonso T. Trujillo, Alejandro Trujillo
  • Publication number: 20110173474
    Abstract: The aspects enable a computing device or microprocessor to determine a low power mode that provides the most system power savings by placing selected resources in a low power mode while continuing to function reliably, depending upon the resources not in use, acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. Aspects provide a mechanism for determining an optimal low power configuration made up of a set of low power modes for the various resources within the computing device by determining which low power modes are valid at the time the processor enters an idle state, ranking the valid low power modes by expected power savings given the current device conditions, determining which valid low power mode provides the greatest power savings while meeting the latency requirements, and selecting a particular low power mode for each resource to enter.
    Type: Application
    Filed: December 10, 2010
    Publication date: July 14, 2011
    Inventors: Brian J. Salsbery, Christopher A. Barrett, Norman S. Gargash, Andrew J. Frantz