Patents by Inventor Bhartur Premachandra

Bhartur Premachandra 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).

  • Immunoassay for the measurement of total thyroxine in blood serum
    Patent number: 3970746
    Abstract: An immunoassay for the measurement of total thyroxine in blood serum which employs trichloracetic acid and base to precipitate or denature the protein to quantitatively extract thyroxine. This procedure along with the use of radioactively labeled T.sub.4 antiserum, and the resin sponge to separate free and bound hormone, minimizes the number of steps required in the assay, which can be performed in the same tube in less than ninety minutes.
    Type: Grant
    Filed: September 5, 1974
    Date of Patent: July 20, 1976
    Assignee: Bhartur Premachandra
    Inventor: Bhartur Premachandra