Patents by Inventor Madhav Gopal Kotasthane

Madhav Gopal Kotasthane 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 the preparation of .alpha. and .beta. napthol by hydroxylation of naphthalene using organotransition metal complex
    Patent number: 5932773
    Abstract: This invention relates to a process for the hydroxylation of napthalene to .varies. and .beta. naphthols which comprises reacting napthalene with hydrogen peroxide in the presence of a solid catalyst containing an organotransition metal complex wherein some or all of the hydrogen atoms of the said organotransition metal complex have been substituted by one or more electron withdrawing group in the presence of solvents, with or without promoter and isolating the naphthols formed by conventional methods.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: August 3, 1999
    Assignee: Council of Scientific & Industrial Research
    Inventors: Paul Ratnasamy, Robert Raja, Pramod Prabhakar Moghe, Madhav Gopal Kotasthane, Ashwini Vinayak Pol, Prakash Kondiba Bahirat
  • Process for the preparation of a mixture of guaiacol and p-methoxy phenol
    Patent number: 5786519
    Abstract: An improved process is provided for the preparation of a mixture of guaiacol and p-methoxy phenol which comprises reacting anisole with hydrogen peroxide in the presence of a solid catalyst containing an organotransition metal complex wherein some or all of the hydrogen atoms of the said organotransition metal complex have been substituted by one or more electron withdrawing groups, and isolating the mixture of guaiacol and p-methoxy phenol formed.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: July 28, 1998
    Assignee: Council of Scientific & Industrial Research
    Inventors: Pramod Prabhakar Moghe, Paul Ratnasamy, Robert Raja, Ashwini Vinayak Pol, Madhav Gopal Kotasthane, Prakash Kondiba Bahirat