Patents by Inventor Jayashree Nath

Jayashree Nath 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).

  • Process for preparing pyridinium fluorochromate (VI)
    Patent number: 6852859
    Abstract: The present invention relates to an economic and environmentally clean process for the preparation of the pyridinium salt of fluorotrioxo-chromate (VI), PFC, having the chemical formula C5H5NH[CrO3F], by direct reaction of stoichiometric amounts of hydrofluoric acid, chromium trioxide and pyridine demonstrating approxomately 100% atom economy.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: February 8, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Mihir Kanti Choudhuri, Sanjay Kumar Dehury, Upasana Bora, Jayashree Nath, Boyapati Manoranjan Choudhary, Lakshmi Kantam Mannepalli
  • Process for preparing pyridinium fluorochromate (VI)
    Publication number: 20040133003
    Abstract: The present invention relates to a novel, economic and environmentally clean process for pyridinium salt of fluorotrioxo-chromate (VI), PFC, having the chemical formula C5H5NH[CrO3F], by direct reaction of stoichiometric amounts of hydrofluoric acid, chromium trioxide and pyridine demonstrating approximately 100% atom economy.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 8, 2004
    Applicant: Council of Scientific and Industrial Research
    Inventors: Mihir Kanti Choudhuri, Sanjay Kumar Dehury, Upasana Bora, Jayashree Nath, Boyapati Manoranjan Choudhary, Lakshmi Kantam Mannepalli