Patents by Inventor CONSTANTINE Y. KHRIPIN

CONSTANTINE Y. KHRIPIN 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).

  • Fractionating nanomaterials by a liquid multiphase composition
    Patent number: 9545584
    Abstract: A process for fractionating a nanoparticle composition, the process includes combining a first polymer, a second polymer, and a solvent to form a fluid and contacting the nanoparticle composition with the fluid. The nanoparticle composition includes a plurality of first nanoparticles, a plurality of second nanoparticles, and a dispersant disposed on an exterior surface of the first nanoparticles and the second nanoparticles. Fractionating the nanoparticle composition also includes forming a multiphase composition that includes a first phase and a second phase by partitioning the first polymer and the second polymer such that a concentration of the first polymer is greater than a concentration of the second polymer in the first phase, and the concentration of the second polymer is greater than the first polymer in the second phase, wherein the solvent is present in the first phase and the second phase.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: January 17, 2017
    Assignee: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Constantine Y. Khripin, Ming Zheng
  • Fractionating nanomaterials by a liquid multiphase composition
    Publication number: 20140174991
    Abstract: A process for fractionating a nanoparticle composition, the process includes combining a first polymer, a second polymer, and a solvent to form a fluid and contacting the nanoparticle composition with the fluid. The nanoparticle composition includes a plurality of first nanoparticles, a plurality of second nanoparticles, and a dispersant disposed on an exterior surface of the first nanoparticles and the second nanoparticles. Fractionating the nanoparticle composition also includes forming a multiphase composition that includes a first phase and a second phase by partitioning the first polymer and the second polymer such that a concentration of the first polymer is greater than a concentration of the second polymer in the first phase, and the concentration of the second polymer is greater than the first polymer in the second phase, wherein the solvent is present in the first phase and the second phase.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY
    Inventors: CONSTANTINE Y. KHRIPIN, MING ZHENG