Patents by Inventor Ashoke Sinha

Ashoke Sinha 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: 4906563
    Abstract: A method for detecting boar taint in a pig sample is provided. Anti-skatole antibodies are combined in a reaction buffer with a pig sample to form a reaction mixture. After incubating, the amount of skatole-antibody complex formation is determined. In a particular embodiment, the method utilizes solid substrate-affixed antibodies in a competitive inhibition assay with an enzyme-labeled skatole analogue. Kits facilitating the method are also provided.
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: March 6, 1990
    Assignee: Idetek, Inc.
    Inventors: Prithipal Singh, Ashoke Sinha
  • Patent number: 4806468
    Abstract: A method for determining glycosylated hemoglobin in a diluted blood sample includes binding of glycosylated hemoglobin to a specific monoclonal antibody and binding of nonglycosylated hemoglobin to a polyclonal antibody. The polyclonal antibody binds to all hemoglobin fractions and blocks the peroxidase activity thereof, except glycosylated hemoglobin bound to the monoclonal antibody which retains peroxidase activity. A beam of light having a wavelength of about 416 nm is passed through the assay medium and is absorbed by all hemoglobin fractions, bound or unbound, and this absorbance thereby provides a measure of total hemoglobin. Hydrogen peroxide and a peroxidase substrate are added. The substrate is oxidized by the peroxide to a product having an absorbance at a wavelength different from 416 nm, the oxidation being catalyzed by the retained peroxidase activity of the bound glycosylated hemoglobin. This absorbance provides a measure of glycosylated hemoglobin.
    Type: Grant
    Filed: February 5, 1987
    Date of Patent: February 21, 1989
    Assignee: Becton, Dickinson and Company
    Inventors: Daniel B. Wagner, Ashoke Sinha