Patents by Inventor Dmytro A. Krasutskyy

Dmytro A. Krasutskyy 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).

  • Depolymerization extraction of compounds from birch bark
    Patent number: 8197870
    Abstract: The invention provides improved processes for the extraction of betulin, lupeol, betulinic acid, suberinic acids, and/or other organic compounds and compositions from birch bark. In some embodiments, the birch bark can be physically processed prior to the extraction process, which can further improve the yield of the extraction. The bark processing can include, but is not limited to, one or more of pelletizing the bark, baling the bark, pucking the bark, or compressing the bark, to a form that is more dense per volume unit than prior to the processing.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: June 12, 2012
    Assignee: Regents of the University of Minnesota
    Inventors: Pavel A. Krasutsky, Igor V. Kolomitsyn, Dmytro A. Krasutskyy
  • DEPOLYMERIZATION EXTRACTION OF COMPOUNDS FROM BIRCH BARK
    Publication number: 20090182158
    Abstract: The invention provides improved processes for the extraction of betulin, lupeol, betulinic acid, suberinic acids, and/or other organic compounds and compositions from birch bark. In some embodiments, the birch bark can be physically processed prior to the extraction process, which can further improve the yield of the extraction. The bark processing can include, but is not limited to, one or more of pelletizing the bark, baling the bark, pucking the bark, or compressing the bark, to a form that is more dense per volume unit than prior to the processing.
    Type: Application
    Filed: October 17, 2008
    Publication date: July 16, 2009
    Inventors: Pavel A. Krasutsky, Igor V. Kolomitsyn, Dmytro A. Krasutskyy
  • Triterpene quaternary salts as biologically active surfactants
    Patent number: 7410958
    Abstract: The invention provides novel compounds that are quaternary amine derivatives of betulin and other triterpenes. The compounds have antibacterial, antifungal, and surfactant properties.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: August 12, 2008
    Assignee: Regents of the University of Minnesota
    Inventors: Pavel A. Krasutsky, Dmytro Avilov, Tatiana Sergeeva, Dmytro A. Krasutskyy, Oksana Kolomitsyna
  • TRITERPENE QUATERNARY SALTS AS BIOLOGICALLY ACTIVE SURFACTANTS
    Publication number: 20070259839
    Abstract: The invention provides novel compounds that are quaternary amine derivatives of betulin and other triterpenes. The compounds have antibacterial, antifungal, and surfactant properties.
    Type: Application
    Filed: June 19, 2007
    Publication date: November 8, 2007
    Inventors: Pavel Krasutsky, Dmytro Avilov, Tatiana Sergeeva, Dmytro Krasutskyy, Oksana Kolomitsyna
  • TRITERPENE QUATERNARY SALTS AS BIOLOGICALLY ACTIVE SURFACTANTS
    Publication number: 20070244081
    Abstract: The invention provides novel compounds that are quaternary amine derivatives of betulin and other triterpenes. The compounds have antibacterial, antifungal, and surfactant properties.
    Type: Application
    Filed: June 8, 2007
    Publication date: October 18, 2007
    Inventors: Pavel Krasutsky, Dmytro Avilov, Tatiana Sergeeva, Dmytro Krasutskyy, Oksana Kolomitsyna
  • TRITERPENE QUATERNARY SALTS AS BIOLOGICALLY ACTIVE SURFACTANTS
    Publication number: 20070088009
    Abstract: The invention provides novel compounds that are quaternary amine derivatives of betulin and other triterpenes. The compounds have antibacterial, antifungal, and surfactant properties.
    Type: Application
    Filed: December 18, 2006
    Publication date: April 19, 2007
    Inventors: Pavel Krasutsky, Dmytro Avilov, Tatiana Sergeeva, Dmytro Krasutskyy, Oksana Kolomitsvna
  • Triterpene quaternary salts as biologically active surfactants
    Patent number: 7199114
    Abstract: The invention provides novel compounds that are quaternary amine derivatives of betulin and other triterpenes. The compounds have antibacterial, antifungal, and surfactant properties.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: April 3, 2007
    Assignee: The Regents of the University of Minnesota
    Inventors: Pavel A. Krasutsky, Dmytro Avilov, Tatiana Sergeeva, Dmytro A. Krasutskyy, Oksana Kolomitsyna
  • Triterpene quaternary salts as biologically active surfactants
    Publication number: 20050059642
    Abstract: The invention provides novel compounds that are quaternary amine derivatives of betulin and other triterpenes. The compounds have antibacterial, antifungal, and surfactant properties.
    Type: Application
    Filed: July 16, 2004
    Publication date: March 17, 2005
    Inventors: Pavel Krasutsky, Dmytro Avilov, Tatiana Sergeeva, Dmytro Krasutskyy, Oksana Kolomitsyna