Patents by Inventor Nikolay N. Barashkov

Nikolay N. Barashkov 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).

  • Inherently colored polyurea and polyurethane
    Publication number: 20040231561
    Abstract: This invention relates to copolymer compositions having pigment like properties, comprising a fluorescent or non-fluorescent dye attached to a polyurea or polyurethane chain by a spacer.
    Type: Application
    Filed: June 16, 2004
    Publication date: November 25, 2004
    Inventors: Bansi Lal Kaul, Jean-Christophe Graciet, Nikolay N. Barashkov, Thomas C. Molloy, Ronghua Liu
  • Method for determination of ethanol concentration in an aqueous solution containing an alcoholic beverage
    Publication number: 20040157334
    Abstract: A method is described for determining from a measurement of fluorescence intensity the concentration of ethanol in water. This end is attained by obtaining data which establishes a relationship between an intensity of fluorescence in the spectral region 490-650 nm for a solution obtained by mixing a fluorescent agent in a solvent, and an intensity of fluorescence in the spectral region 490-650 nm measured for a calibration sample obtained by mixing the fluorescent agent's solution with a water ethanol solution having a known concentration of ethanol.
    Type: Application
    Filed: August 11, 2003
    Publication date: August 12, 2004
    Inventors: Nikolay N. Barashkov, Boris M. Bolotin, Ben Zhong Tang, Han Peng, Junwu Chen
  • Process of making finely divided opaque particles
    Patent number: 6462128
    Abstract: A new pigment for making colored finely divided particles on aminoformaldehyde resin allows to produce particles of substantially uniform particle size and spherical or irregular shape having excellent dispersibility and superior opacity.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: October 8, 2002
    Assignee: Clariant International Ltd.
    Inventors: Nikolay N. Barashkov, Thomas C. Molloy, Bansi Lal Kaul, Jean-Christophe G. Graciet