Patents by Inventor Kevin DRUMMEY

Kevin DRUMMEY 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).

  • Adaptable thermoset polymers with internal dynamic bonds, and methods of making and using the same
    Patent number: 11713370
    Abstract: The disclosed technology provides improved thermoset vitrimers. It has been discovered that by incorporating adaptable dynamic groups along the polymer backbone, along with permanent, non-dynamic crosslinking points, an improved thermoset vitrimer is generated. In some variations, a thermoset vitrimer comprises: a linear polymer backbone containing associative dynamic covalently bonded species; a crosslinked network containing non-dynamic branch points; and non-dynamic species between non-dynamic branch points and terminal ends of the linear polymer backbone.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: August 1, 2023
    Assignee: HRL Laboratories, LLC
    Inventors: Ashley Dustin, Kevin Drummey, Andrew Nowak
  • Broadband-transparent polysulfide-based copolymers
    Patent number: 11421082
    Abstract: Some variations provide a polysulfide-based copolymer containing first repeat units comprising S8-derived sulfur atoms bonded via sulfur-sulfur bonds; and second repeat units comprising an organic, non-aromatic thiol molecule. Other variations provide a polysulfide-based copolymer containing first repeat units comprising S8-derived sulfur atoms bonded via sulfur-sulfur bonds; and second repeat units comprising an organic, non-aromatic unsaturated molecule, wherein the polysulfide-based copolymer has a total sulfur concentration of about 10 wt % or greater. Other variations provide a polysulfide-based copolymer containing first repeat units comprising S8-derived sulfur atoms bonded via sulfur-sulfur bonds; second repeat units comprising an organic, non-aromatic thiol molecule; and third repeat units comprising an organic, non-aromatic unsaturated molecule.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 23, 2022
    Assignee: HRL Laboratories, LLC
    Inventors: Andrew P. Nowak, Ashley M. Dustin, April R. Rodriguez, Kevin Drummey
  • BROADBAND-TRANSPARENT POLYSULFIDE-BASED COPOLYMERS
    Publication number: 20200291185
    Abstract: Some variations provide a polysulfide-based copolymer containing first repeat units comprising S8-derived sulfur atoms bonded via sulfur-sulfur bonds; and second repeat units comprising an organic, non-aromatic thiol molecule. Other variations provide a polysulfide-based copolymer containing first repeat units comprising S8-derived sulfur atoms bonded via sulfur-sulfur bonds; and second repeat units comprising an organic, non-aromatic unsaturated molecule, wherein the polysulfide-based copolymer has a total sulfur concentration of about 10 wt % or greater. Other variations provide a polysulfide-based copolymer containing first repeat units comprising S8-derived sulfur atoms bonded via sulfur-sulfur bonds; second repeat units comprising an organic, non-aromatic thiol molecule; and third repeat units comprising an organic, non-aromatic unsaturated molecule.
    Type: Application
    Filed: December 17, 2019
    Publication date: September 17, 2020
    Inventors: Andrew P. NOWAK, Ashley M. DUSTIN, April R. RODRIGUEZ, Kevin DRUMMEY