Patents by Inventor Suhas Arunkumar Chavan

Suhas Arunkumar Chavan 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).

  • Encapsulated oxo-bridged organometallic cluster catalyst and a process for the preparation thereof
    Patent number: 7153806
    Abstract: The present invention relates to a novel encapsulated organometallic cluster complex catalyst and to a process for the preparation thereof. The oxo-bridged organometallic cluster complex of the invention has at least one atom of cobalt and manganese encapsulated in micro and mesoporous porous solids like aluminosilicate zeolites, aluminophosphates, carbon molecular sieves, silica and is particularly effective for oxidation of aromatic alkyl groups to the carboxyl groups in high yields.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: December 26, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Darbha Srinivas, Suhas Arunkumar Chavan, Paul Ratnasamy
  • Process for the preparation of an aromatic carboxylic acid
    Patent number: 6649791
    Abstract: The present invention relates to the preparation of an aromatic carboxylic acid by contacting an alkyl aromatic compound with an oxygen containing gas in the presence of a encapsulated oxo-bridged organometallic cluster catalyst.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: November 18, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Darbha Srinivas, Suhas Arunkumar Chavan, Paul Ratnasamy
  • Process for the preparation of an aromatic carboxylic acid
    Publication number: 20030050504
    Abstract: The present invention relates to the preparation of an aromatic carboxylic acid by contacting an alkyl aromatic compound with an oxygen containing gas in the presence of a encapsulated oxo-bridged organometallic cluster catalyst.
    Type: Application
    Filed: June 28, 2001
    Publication date: March 13, 2003
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Darbha Srinivas, Suhas Arunkumar Chavan, Paul Ratnasamy
  • Process for the preparation of adipic acid
    Patent number: 6521789
    Abstract: The present invention relates to an improved process for the preparation of adipic acid. More particularly, the present invention relates to an environmental-friendly, clean process for the preparation of adipic acid through oxidation of cyclohexanol, cyclohexanone or a mixture thereof with oxygen or oxygen-containing gas, in the presence of an oxidation initiator, a polar solvent and an organometallic &mgr;3-oxo-bridged Co/Mn cluster complex catalyst.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: February 18, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Darbha Srinivas, Suhas Arunkumar Chavan, Paul Ratnasamy
  • Encapsulated oxo-bridged organometallic cluster catalyst and a process for the preparation thereof
    Publication number: 20030008770
    Abstract: The present invention relates to a novel encapsulated organometallic cluster complex catalyst and to a process for the preparation thereof. The oxo-bridged organometallic cluster complex of the invention has at least one atom of cobalt and manganese encapsulated in micro and mesoporous porous solids like aluminosilicate zeolites, aluminophosphates, carbon molecular sieves, silica and is particularly effective for oxidation of aromatic alkyl groups to the carboxyl groups in high yields.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 9, 2003
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Darbha Srinivas, Suhas Arunkumar Chavan, Paul Ratnasamy