Patents by Inventor Daniel McCray Kroupa

Daniel McCray Kroupa 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).

  • Doped semiconductors and methods of making the same
    Patent number: 10711184
    Abstract: The present disclosure relates to a composition that includes a first element, a second element, a third element, a ligand, and an anion, where the first element and the second element form a nanocrystal that includes a surface and a crystal lattice, a first portion of the third element covers at least a second portion of the surface in the form of a layer, a third portion of the third element is incorporated into the crystal lattice, and the ligand and the anion are ionically bound to at least one of the second element and/or the first portion of the third element.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: July 14, 2020
    Assignees: Alliance for Sustainable Energy, LLC, The Regents of the University of Colorado, a body corporate
    Inventors: Daniel McCray Kroupa, Barbara Katherine Hughes, Matthew C. Beard
  • Ligand-exchangeable nanoparticles and methods of making the same
    Patent number: 10544168
    Abstract: An aspect of the present disclosure is a nanocrystal that includes a nanocrystal core and a ligand coordinated to a surface of the nanocrystal core, where the ligand includes a functionalized aromatic molecule. In some embodiments of the present disclosure, the functionalized aromatic molecule may include at least one of cinnamic acid (CAH) and/or a functionalized CAH molecule.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: January 28, 2020
    Assignees: Alliance for Sustainable Energy, LLC, Colorado School of Mines, The Regents of the University of Colorado, a body corporate
    Inventors: Matthew C. Beard, Daniel McCray Kroupa, Alan Sellinger
  • DOPED SEMICONDUCTORS AND METHODS OF MAKING THE SAME
    Publication number: 20180142145
    Abstract: The present disclosure relates to a composition that includes a first element, a second element, a third element, a ligand, and an anion, where the first element and the second element form a nanocrystal that includes a surface and a crystal lattice, a first portion of the third element covers at least a second portion of the surface in the form of a layer, a third portion of the third element is incorporated into the crystal lattice, and the ligand and the anion are ionically bound to at least one of the second element and/or the first portion of the third element.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 24, 2018
    Inventors: Daniel McCray KROUPA, Barbara Katherine HUGHES, Matthew C. Beard
  • LIGAND-EXCHANGEABLE NANOPARTICLES AND METHODS OF MAKING THE SAME
    Publication number: 20170362255
    Abstract: An aspect of the present disclosure is a nanocrystal that includes a nanocrystal core and a ligand coordinated to a surface of the nanocrystal core, where the ligand includes a functionalized aromatic molecule. In some embodiments of the present disclosure, the functionalized aromatic molecule may include at least one of cinnamic acid (CAH) and/or a functionalized CAH molecule.
    Type: Application
    Filed: June 15, 2017
    Publication date: December 21, 2017
    Inventors: Matthew C. Beard, Daniel McCray Kroupa, Alan Sellinger