Patents by Inventor Andrei A. Kolmakov

Andrei A. Kolmakov 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: 11738312
    Abstract: A multidimensional printer makes a multidimensional structure from a liquid composition and includes: an energetic crosslinking particle source; a vacuum chamber that receives energetic crosslinking particles from the energetic crosslinking particle source; a membrane that transmits the energetic crosslinking particles; and a sample chamber that: receives a liquid composition that includes a solvent and polymers, the polymers including a cross-linkable moiety subjected to the energetic crosslinking particles such that portions of the polymers proximate to the cross-linkable moieties subjected to the energetic crosslinking particles crosslink to form a solid crosslinked polymer structure, wherein the membrane isolates a vacuum of the vacuum chamber from vapor of the liquid composition in the sample chamber.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: August 29, 2023
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Andrei A. Kolmakov, Glenn Emerson Holland, Tanya Gupta
  • Publication number: 20210031150
    Abstract: A multidimensional printer makes a multidimensional structure from a liquid composition and includes: an energetic crosslinking particle source; a vacuum chamber that receives energetic crosslinking particles from the energetic crosslinking particle source; a membrane that transmits the energetic crosslinking particles; and a sample chamber that: receives a liquid composition that includes a solvent and polymers, the polymers including a cross-linkable moiety subjected to the energetic crosslinking particles such that portions of the polymers proximate to the cross-linkable moieties subjected to the energetic crosslinking particles crosslink to form a solid crosslinked polymer structure, wherein the membrane isolates a vacuum of the vacuum chamber from vapor of the liquid composition in the sample chamber.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 4, 2021
    Inventors: Andrei A. Kolmakov, Glenn Emerson Holland, Tanya Gupta
  • Publication number: 20130146221
    Abstract: Some embodiments of the invention include a method for preparing a carbon-containing membrane. The method includes preparing a carbon-containing solution and then washing and filtering the carbon-containing solution. The method further provides adding a volume of the washed and filtered carbon-containing solution to a receptacle that includes an aqueous solution. After a predetermined amount of time, the carbon-containing solution will equilibrate and form sheets of carbon-containing materials that float on a surface of the aqueous solution. The method further includes defining an aperture through at least a portion of a substrate and then inserting the substrate in the receptacle so that at least a portion of the carbon-containing sheets adhere to the substrate. In addition, the method further includes thermally treating the membrane to improve its molecular impermeability.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 13, 2013
    Applicant: Southern Illinois University Carbondale
    Inventors: Andrei Kolmakov, Dmitry Dikin, Sebastian Gunther, Jiaxing Huang
  • Patent number: 8443647
    Abstract: A multi-sensor as disclosed herein can include a substrate and at least three sensing elements disposed on the substrate. Each sensing element includes two electrodes separated by a distance and a nanowire mat adjacent to and in contact with the electrodes. The nanowire mats include nanowires which define a percolation network. The density of the nanowires in the nanowire mat of one sensing element is different than the density of the nanowires in the nanowire mat of either of the other at least two sensing elements.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: May 21, 2013
    Assignee: Southern Illinois University
    Inventors: Andrei Kolmakov, Victor V. Sysoev
  • Patent number: 7718552
    Abstract: A method and device of nanostructured titania that is crack free. A method in accordance with the present invention comprises depositing a Ti film on a surface, depositing a masking layer on the Ti film, etching said masking layer to expose a limited region of the Ti film, the limited region being of an area less than a threshold area, oxidizing the exposed limited region of the Th.ucsbi film, and annealing the exposed limited region of the Ti film.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: May 18, 2010
    Assignee: The Regents of the University of California
    Inventors: Zuruzi Abu Samah, Noel C. MacDonald, Marcus Ward, Martin Moskovits, Andrei Kolmakov, Cyrus R. Safinya
  • Publication number: 20100086734
    Abstract: A method and device of nanostructured titania that is crack free. A method in accordance with the present invention comprises depositing a Ti film on a surface, depositing a masking layer on the Ti film, etching said masking layer to expose a limited region of the Ti film, the limited region being of an area less than a threshold area, oxidizing the exposed limited region of the Th.ucsbi film, and annealing the exposed limited region of the Ti film.
    Type: Application
    Filed: April 4, 2006
    Publication date: April 8, 2010
    Inventors: Zuruzi Abu Samah, Noel C. MacDonald, Marcus Ward, Martin Moskovits, Andrei Kolmakov, Cyrus R. Safinya