Patents by Inventor Sarah Dorothy Shepherd

Sarah Dorothy Shepherd 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).

  • Methods and materials for controlled release of desired chemistries
    Patent number: 11078411
    Abstract: The present disclosure relates to delivery and release systems wherein a plurality of particles is provided, and the particles are formed of a vehicle component and a cargo component. The systems and methods particularly can be useful in delivery of various chemicals to a petroleum reservoir. The vehicle component can undergo a change in situ such that at least a portion of the cargo component is released.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: August 3, 2021
    Assignee: Research Triangle Institute
    Inventors: Leah Marie Johnson, Ginger Denison Rothrock, Chasity Antoninette Norton, Sarah Dorothy Shepherd, Nicolas Daniel Huffman, Jeffrey Brent Mecham
  • Formulations for controlled release of bupivacaine
    Patent number: 10292909
    Abstract: The disclosure provides biocompatible dental material that is moldable and biodegradable and provides sustained and/or controlled delivery of one or more local anesthetics within a dental cavity or space. Such dental material is customizable for the size and shape needed for a particular patient or particular application. The dental material may also provide customizable sustained and/or controlled delivery of one or more local anesthetics.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: May 21, 2019
    Assignees: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL, RESEARCH TRIANGLE INSTITUTE
    Inventors: Leah Marie Johnson, Ginger Denison Rothrock, Sarah Dorothy Shepherd, Sandra Cordel O'Buckley, Andrea Gail Neely
  • METHODS AND MATERIALS FOR CONTROLLED RELEASE OF DESIRED CHEMISTRIES
    Publication number: 20190031951
    Abstract: The present disclosure relates to delivery and release systems wherein a plurality of particles is provided, and the particles are formed of a vehicle component and a cargo component. The systems and methods particularly can be useful in delivery of various chemicals to a petroleum reservoir. The vehicle component can undergo a change in situ such that at least a portion of the cargo component is released.
    Type: Application
    Filed: January 17, 2017
    Publication date: January 31, 2019
    Inventors: Leah Marie Johnson, Ginger Denison Rothrock, Chasity Antoninette Norton, Sarah Dorothy Shepherd, Nicolas Daniel Huffman, Jeffrey Brent Mecham
  • FORMULATIONS FOR CONTROLLED RELEASE OF BUPIVACAINE
    Publication number: 20180325781
    Abstract: The disclosure provides biocompatible dental material that is moldable and biodegradable and provides sustained and/or controlled delivery of one or more local anesthetics within a dental cavity or space. Such dental material is customizable for the size and shape needed for a particular patient or particular application. The dental material may also provide customizable sustained and/or controlled delivery of one or more local anesthetics.
    Type: Application
    Filed: March 12, 2018
    Publication date: November 15, 2018
    Applicants: Research Triangle Institute, The University of North Carolina at Chapel Hill
    Inventors: Leah Marie Johnson, Ginger Denison Rothrock, Sarah Dorothy Shepherd, Sandra Cordel O'Buckley, Andrea Gail Neely
  • Biocompatible dental putty formulations for controlled release of bupivacaine
    Patent number: 9943466
    Abstract: The disclosure provides biocompatible dental material that is moldable and biodegradable and provides sustained and/or controlled delivery of one or more local anesthetics within a dental cavity or space. Such dental material is customizable for the size and shape needed for a particular patient or particular application. The dental material may also provide customizable sustained and/or controlled delivery of one or more local anesthetics.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: April 17, 2018
    Assignees: Research Triangle Institute, The University of North Carolina at Chapel Hill
    Inventors: Leah Marie Johnson, Ginger Denison Rothrock, Sarah Dorothy Shepherd, Sandra Cordel O'Buckley, Andrea Gail Neely