Patents by Inventor Pushhpito Ghosh

Pushhpito Ghosh 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 2,4,4,6-tetrabromo-2,5-cycloyhexadienone
    Patent number: 6838582
    Abstract: A highly pure 2,4,4,6-tetrabromo-2,5-cyclohexadienone has been prepared in a single pot, eco-friendly procedure in yields of 91-94% from phenol. In this method, a mixture of alkali/alkaline earth metal bromide and alkali/alkaline earth metal bromate was employed as brominating agent in place of corrosive liquid bromine. The reaction between phenol and the brominating reagent was initiated by the action of a mineral acid or moderately strong organic acid. The crude product was further characterized by standard analytical and spectroscopic methods.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: January 4, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Ashutosh Vasant Bedekar, Ramachandraiah Gadde, Pushhpito Ghosh