Patents by Inventor Valery G. Kulichikhin

Valery G. Kulichikhin 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).

  • Publication number: 20090258060
    Abstract: Hydrogel compositions are provided (a) that have a continuous hydrophobic phase and a discontinuous hydrophilic phase, (b) that have a discontinuous hydrophilic phase and a continuous hydrophilic phase, or (c) that are entirely composed of a continuous hydrophilic phase. The hydrophobic phase, if present, is composed of a hydrophobic polymer, particularly a hydrophobic pressure-sensitive adhesive (PSA), a plasticizing elastomer, a tackifying resin, and an optional antioxidant. The discontinuous hydrophilic phase, if present, is composed of a crosslinked hydrophilic polymer, particularly a crosslinked cellulosic polymer such as crosslinked sodium carboxymethylcellulose. For those hydrogel compositions containing a continuous hydrophilic phase, the components of the phase include a cellulose ester composition or an acrylate polymer or copolymer, and a blend of a hydrophilic polymer and a complementary oligomer capable of hydrogen bonding thereto.
    Type: Application
    Filed: June 24, 2009
    Publication date: October 15, 2009
    Inventors: Gary W. Cleary, Shoreh Parandoosh, Mikhail M. Feldstein, Anatoly E. Chalykh, Nicolai A. Plate, Valery G. Kulichikhin
  • Patent number: 7456331
    Abstract: A skin-contacting adhesive composition is described which has improved initial tack, long-term adhesion, water uptake and translucency characteristics and may be prepared by melt extrusion. Uses of these compositions are also described, for example, their use in wound dressings, adhesive cushions, and transdermal drug delivery devices.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: November 25, 2008
    Assignees: Corium International, Inc., A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
    Inventors: Valery G. Kulichikhin, Shoreh Parandoosh, Mikhail M. Feldstein, Sergey Antonov, Gary W. Cleary
  • Publication number: 20080161492
    Abstract: An adhesive composition is provided that contains both a hydrophobic phase and a hydrophilic phase, wherein the hydrophobic phase is composed of a hydrophobic polymer composition and the hydrophilic phase is a water-absorbent blend of a hydrophilic polymer and a complementary oligomer capable of crosslinking the hydrophilic polymer through hydrogen bonding, ionic bonding, and/or covalent bonding. The composition is useful as a bioadhesive, for affixing drug delivery systems, wound dressings, bandages, cushions, or the like to a body surface such as skin or mucosal tissue.
    Type: Application
    Filed: August 20, 2007
    Publication date: July 3, 2008
    Inventors: Gary W. Cleary, Mikhail M. Feldstein, Valery G. Kulichikhin, Danir F. Bairamov
  • Patent number: 7217853
    Abstract: A skin-contacting adhesive composition is described which has improved initial tack, long-term adhesion, water uptake and translucency characteristics and may be prepared by melt extrusion. Uses of these compositions are also described, for example, their use in wound dressings.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: May 15, 2007
    Assignee: Corium International, Inc.
    Inventors: Valery G. Kulichikhin, Shoreh Parandoosh, Mikhail M. Feldstein, Sergey Antonov, Gary W. Cleary
  • Patent number: 7138458
    Abstract: A method is provided for preparing an adhesive composition that contains both a hydrophobic phase and a hydrophilic phase, wherein the hydrophobic phase is composed of a crosslinked hydrophobic polymer composition and the hydrophilic phase is a water-absorbent blend of a hydrophilic polymer and a complementary oligomer capable of crosslinking the hydrophilic polymer through hydrogen bonding, ionic bonding, and/or covalent bonding. The composition is useful as a bioadhesive, for affixing drug delivery systems, wound dressings, bandages, cushions, or the like to a body surface such as skin or mucosal tissue.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: November 21, 2006
    Assignees: Corium International, Inc., A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
    Inventors: Gary W. Cleary, Mikhail M. Feldstein, Valery G. Kulichikhin, Danir F. Bairamov
  • Patent number: 6803420
    Abstract: An adhesive composition is provided that contains both a hydrophobic phase and a hydrophilic phase, wherein the hydrophobic phase is composed of a crosslinked hydrophobic polymer composition and the hydrophilic phase is a water-absorbent blend of a hydrophilic polymer and a complementary oligomer capable of crosslinking the hydrophilic polymer through hydrogen bonding, ionic bonding, and/or covalent bonding. The composition is useful as a bioadhesive, for affixing drug delivery systems, wound dressings, bandages, cushions, or the like to a body surface such as skin or mucosal tissue.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: October 12, 2004
    Assignees: Corium International, A.V. Topchiev Institute of Petrochemical Synthsis, Russian Academy of Sciences
    Inventors: Gary W. Cleary, Mikhail M. Feldstein, Valery G. Kulichikhin, Danir F. Bairamov
  • Publication number: 20030225356
    Abstract: A skin-contacting adhesive composition is described which has improved initial tack, long-term adhesion, water uptake and translucency characteristics and may be prepared by melt extrusion. Uses of these compositions are also described, for example, their use in wound dressings.
    Type: Application
    Filed: August 21, 2002
    Publication date: December 4, 2003
    Inventors: Valery G. Kulichikhin, Shoreh Parandoosh, Mikhail M. Feldstein, Sergey Antonov, Gary W. Cleary
  • Publication number: 20030130427
    Abstract: An adhesive composition is provided that contains both a hydrophobic phase and a hydrophilic phase, wherein the hydrophobic phase is composed of a crosslinked hydrophobic polymer composition and the hydrophilic phase is a water-absorbent blend of a hydrophilic polymer and a complementary oligomer capable of crosslinking the hydrophilic polymer through hydrogen bonding, ionic bonding, and/or covalent bonding. The composition is useful as a bioadhesive, for affixing drug delivery systems, wound dressings, bandages, cushions, or the like to a body surface such as skin or mucosal tissue.
    Type: Application
    Filed: May 1, 2002
    Publication date: July 10, 2003
    Inventors: Gary W. Cleary, Mikhail M. Feldstein, Valery G. Kulichikhin, Danir F. Bairamov