Patents by Inventor Vladimir A. Koulchin

Vladimir A. Koulchin 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: 9989529
    Abstract: The present invention involves extracting from Legionella bacteria, particularly L. pneumophila bacteria, an essentially protein-free O-polysaccharide or carbohydrate antigen, coupling this antigen to an activated chromatographic column through a protein space molecule which is first conjugated to the antigen, utilizing the column thus prepared for the affinity purification of raw polyvalent antibodies to the same Legionella bacterium from which the O-polysaccharide or carbohydrate antigen was separated—thereby obtaining antigen-specific antibodies which are useful for the rapid detection of the corresponding Legionella bacterium or its antibody in human bodily fluids such as urine, sputum, blood and the like or in environmental samples suspected of harboring theLegionella bacterium.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: June 5, 2018
    Assignee: Alere Scarborough, Inc.
    Inventors: Vladimir A. Koulchin, Norman J. Moore, Elena V. Molokova
  • Patent number: 9921220
    Abstract: Disclosed is a cell wall C-polysaccharide antigen of Streptococcus pneumoniae which contains not more than 10% by weight of protein, and preferably less which has been purified with 0.1N Na OH prior to deproteinizing. Also disclosed are polyvalent antibodies raised against Streptococcus pneumoniae which have been affinity purified by passing them over a chromatographic affinity matrix to which is coupled the purified and at least partially deproteinized antigen to render them antigen-specific.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: March 20, 2018
    Assignee: Alere Scarborough, Inc.
    Inventors: Norman J. Moore, Mary K. Konstantin, Vladimir A. Koulchin, Elena V. Molokova
  • Publication number: 20160377614
    Abstract: Disclosed is a cell wall C-polysaccharide antigen of Streptococcus pneumoniae which contains not more than 10% by weight of protein, and preferably less which has been purified with 0.1N NaOH prior to deproteinizing. Also disclosed are polyvalent antibodies raised against Streptococcus pneumoniae which have been affinity purified by passing them over a chromatographic affinity matrix to which is coupled the purified and at least partially deproteinized antigen to render them antigen-specific.
    Type: Application
    Filed: March 1, 2016
    Publication date: December 29, 2016
    Inventors: Norman J. Moore, Mary K. Konstantin, Vladimir A. Koulchin, Elena V. Molokova
  • Patent number: 9310369
    Abstract: Disclosed is a cell wall C-polysaccharide antigen of Streptococcus pneumoniae which contains not more than 10% by weight of protein, and preferably less which has been purified with 0.1N Na OH prior to deproteinizing. Also disclosed are polyvalent antibodies raised against Streptococcus pneumoniae which have been affinity purified by passing them over a chromatographic affinity matrix to which is coupled the purified and at least partially deproteinized antigen to render them antigen-specific.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: April 12, 2016
    Assignee: Alere Scarborough, Inc.
    Inventors: Norman J. Moore, Mary K. Konstantin, Vladimir A. Koulchin, Elena V. Molokova
  • Publication number: 20160047807
    Abstract: The present invention involves extracting from Legionella bacteria, particularly L. pneumophila bacteria, an essentially protein-free O-polysaccharide or carbohydrate antigen, coupling this antigen to an activated chromatographic column through a protein space molecule which is first conjugated to the antigen, utilizing the column thus prepared for the affinity purification of raw polyvalent antibodies to the same Legionella bacterium from which the O-polysaccharide or carbohydrate antigen was separated—thereby obtaining antigen-specific antibodies which are useful for the rapid detection of the corresponding Legionella bacterium or its antibody in human bodily fluids such as urine, sputum, blood and the like or in environmental samples suspected of harboring theLegionella bacterium.
    Type: Application
    Filed: August 18, 2015
    Publication date: February 18, 2016
    Inventors: Vladimir A. Koulchin, Norman J. Moore, Elena V. Molokova
  • Publication number: 20150219648
    Abstract: Disclosed is a cell wall C-polysaccharide antigen of Streptococcus pneumoniae which contains not more than 10% by weight of protein, and preferably less which has been purified with 0.1N Na OH prior to deproteinizing. Also disclosed are polyvalent antibodies raised against Streptococcus pneumoniae which have been affinity purified by passing them over a chromatographic affinity matrix to which is coupled the purified and at least partially deproteinized antigen to render them antigen-specific.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 6, 2015
    Inventors: Norman J. Moore, Mary K. Fent, Vladimir A. Koulchin, Elena V. Molokova
  • Patent number: 8057797
    Abstract: The disclosed technology provides an enriched antibody population, highly specific for an antigen of a surface polysaccharide, from a mycobacterium. In a related embodiment, the antibody is enriched by having been raised in an environment that maintains antigenically active antigen. These antibodies may be used in an immunoreactive environment for detecting the presence of a mycobacterial infection in a sample from a subject.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: November 15, 2011
    Assignee: Chemogen, Inc.
    Inventors: Vladimir A. Koulchin, Elena V. Molokova, Jill L. Kerrick
  • Publication number: 20100210823
    Abstract: The disclosed technology provides an enriched antibody population, highly specific for an antigen of a surface polysaccharide, from a mycobacterium. In a related embodiment, the antibody is enriched by having been raised in an environment that maintains antigenically active antigen. These antibodies may be used in an immunoreactive environment for detecting the presence of a mycobacterial infection in a sample from a subject.
    Type: Application
    Filed: October 19, 2009
    Publication date: August 19, 2010
    Applicant: CHEMOGEN, INC.
    Inventors: Vladimir A. Koulchin, Elena V. Molokova, Jill L. Kerrick
  • Patent number: 7615222
    Abstract: The disclosed technology provides an enriched antibody population, highly specific for an antigen of a surface polysaccharide, from a mycobacterium. In a related embodiment, the antibody is enriched by having been raised in an environment that maintains antigenically active antigen. These antibodies may be used in an immunoreactive environment for detecting the presence of a mycobacterial infection in a sample from a subject.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 10, 2009
    Assignee: Chemogen, Inc.
    Inventors: Vladimir A. Koulchin, Elena V. Molokova, Jill L. Kerrick
  • Publication number: 20080213806
    Abstract: The disclosed technology provides an enriched antibody population, highly specific for an antigen of a surface polysaccharide, from a mycobacterium. In a related embodiment, the antibody is enriched by having been raised in an environment that maintains antigenically active antigen. These antibodies may be used in an immunoreactive environment for detecting the presence of a mycobacterial infection in a sample from a subject.
    Type: Application
    Filed: October 31, 2007
    Publication date: September 4, 2008
    Applicant: CHEMOGEN, INC
    Inventors: Vladimir A. Koulchin, Elena V. Molokova, Jill L. Kerrick
  • Publication number: 20080096236
    Abstract: A process is disclosed for separating a carbohydrate antigen from a Gram-positive or Gram-negative bacteria in a purified form that contains no more than 10% protein. The separated antigen is coupled to an affinity column, over which polyclonal antibodies to the same bacteria are chromatographed and recovered in a purified form that exhibits high specificity and sensitivity in immunoassays for the raw carbohydrate antigen corresponding to the purified antigen on the column. A particularly preferred form of rapid immunochromatographic assay employing the purified antibodies, which assay is very useful as an aid to rapid diagnosis of diseases caused by bacteria, is disclosed.
    Type: Application
    Filed: June 11, 2007
    Publication date: April 24, 2008
    Applicant: Binax, Inc.
    Inventors: Vladimir Koulchin, Norman Moore, Elena Molokova, Mary Fent
  • Patent number: 7335480
    Abstract: The disclosed technology provides an enriched antibody population, highly specific for an antigen of a surface polysaccharide, from a mycobacterium. In a related embodiment, the antibody is enriched by having been raised in an environment that maintains antigenically active antigen. These antibodies may be used in an immunoreactive environment for detecting the presence of a mycobacterial infection in a sample from a subject.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: February 26, 2008
    Assignee: Chemogen, Inc.
    Inventors: Vladimir A. Koulchin, Elena V. Molokova, Jill L. Kerrick
  • Publication number: 20070265433
    Abstract: Disclosed is a cell wall C-polysaccharide antigen of Streptococcus pneumoniae which contains not more than 10% by weight of protein, and preferably less which has been purified with 0.1N Na OH prior to deproteinizing. Also disclosed are polyvalent antibodies raised against Streptococcus pneumoniae which have been affinity purified by passing them over a chromatographic affinity matrix to which is coupled the purified and at least partially deproteinized antigen to render them antigen-specific.
    Type: Application
    Filed: April 26, 2007
    Publication date: November 15, 2007
    Applicant: Binax, Inc.
    Inventors: Norman Moore, Mary Fent, Vladimir Koulchin, Elena Molokova
  • Publication number: 20060127406
    Abstract: Enriched antibody population, highly specific for an antigen of a surface polysaccharide from a mycobacterium. In a related embodiment, the antibody is enriched by having been raised in an environment that maintains antigenically active antigen. These antibodies may be used in an immunoreactive environment for detecting the presence of a mycobacterial infection in a sample from a subject.
    Type: Application
    Filed: July 20, 2005
    Publication date: June 15, 2006
    Inventors: Vladimir Koulchin, Elena Molokova, Jill Kerrick
  • Publication number: 20050148039
    Abstract: Disclosed is a cell wall C-polysaccharide antigen of Streptococcus pneumoniae which contains not more than 10% by weight of protein, and preferably less which has been purified with 0.1 N Na OH prior to deproteinizing. Also disclosed are polyvalent antibodies raised against Streptococcus pneumoniae which have been affinity purified by passing them over a chromatographic affinity matrix to which is coupled the purified and at least partially deproteinized antigen to render them antigen-specific.
    Type: Application
    Filed: November 16, 2004
    Publication date: July 7, 2005
    Inventors: Norman Moore, Mary Fent, Vladimir Koulchin, Elena Molokova