Patents by Inventor Subir Chanda

Subir Chanda 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).

  • Liquid cleaner containing inactivated protease for protein soiled contact lenses
    Patent number: 4715899
    Abstract: Protein soiled contact lenses are conveniently cleaned by the concurrent use of an aqueous solution containing an inactivated sulfhydryl protease and an aqueous mild thio reducing agent. The protease is allosterically inactivated by reaction with sodium tetrathionate.
    Type: Grant
    Filed: April 11, 1984
    Date of Patent: December 29, 1987
    Inventors: Subir Chanda, Thomas M. Riedhammer, Andrew M. Tometsko