Patents by Inventor Sudhish Chandra

Sudhish Chandra 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).

  • Treatment of immobilized matrices for preparation of pharmaceutical and biological products with anti-microbial agents to remove pyrogen-producing organisms and pyrogens
    Patent number: 5202246
    Abstract: Disclosed are methods of inactivating pyrogen producing organisms and pyrogenic substances in immobilized solid matrices which are used in the production and/or purification of biomedical and pharmaceutical products and materials by contacting the solid matrices with pyrogen inactivating solutions.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: April 13, 1993
    Assignee: Armour Pharmaceutical Company
    Inventors: Robert Kruse, Sudhish Chandra, Fred Feldman
  • Stabilization of biological and pharmaceutical products during thermal inactivation of viral and bacterial contaminants
    Patent number: 4876241
    Abstract: A method of inactivating pathogens in proteinaceous biological and pharmaceutical products which comprises: mixing the product in an aqueous solution with one or more primary stabilizers selected from the group consisting of sugars and sugar alcohols and one or more secondary stabilizers selected from the group consisting of sodium acetate, potassium acetate, lithium acetate, magnesium acetate, ammonium acetate, barium acetate, sodium sulfate, ammonium sulfate, lithium sulfate, potassium sulfate and magnesium sulfate; and subjecting said aqueous solution to a pathogen inactivating process.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: October 24, 1989
    Assignee: Armour Pharmaceutical Company
    Inventors: Fred Feldman, Mark S. Klekamp, Michael E. Hrinda, Arthur B. Shaw, Sudhish Chandra
  • Treatment of biological and pharmaceutical products adsorbed on a solid phase with virus and pyrogen inactivating agents
    Patent number: 4673733
    Abstract: A method for treating a biological or pharmaceutical product to inactivate viruses and pyrogens therein comprising the steps of adsorbing said product onto a solid phase; treating the adsorbed product with a virus or pyrogen inactivating agent; separating the solid phase and quantitatively removing the residual inactivating agent therefrom; and recovering said product.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: June 16, 1987
    Inventors: Sudhish Chandra, Fred Feldman