Patents by Inventor Mannepalli L. Kantam

Mannepalli L. Kantam 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 supported osmates
    Patent number: 6703531
    Abstract: The present invention discloses a process for the preparation of a novel heterogeneous osmate catalyst of the general formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules by reacting potassium osmate with supported quaternary ammonium species in an aqueous solvent.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: March 9, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Boyapati M. Choudary, Naidu S. Chowdari, Mannepalli L. Kantam, Kondapuram V. Raghavan
  • Process for the preparation of supported osmates
    Publication number: 20030153794
    Abstract: The present invention discloses a process for the preparation of a novel heterogeneous osmate catalyst of the general formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules by reacting potassium osmate with supported quaternary ammonium species in an aqueous solvent.
    Type: Application
    Filed: February 14, 2003
    Publication date: August 14, 2003
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH.
    Inventors: Boyapati M. Choudary, Naidu S. Chowdari, Mannepalli L. Kantam, Kondapuram V. Raghavan
  • Process for the preparation of supported osmates
    Patent number: 6552234
    Abstract: The present invention discloses a process for the preparation of a novel heterogeneous osmate catalyst of the general formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules by reacting potassium osmate with supported quaternary ammonium species in an aqueous solvent.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: April 22, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Boyapati M. Choudary, Naidu S. Chowdari, Mannepalli L. Kantam, Kondapuram V. Raghavan
  • Process for the preparation of amine oxides
    Patent number: 6455735
    Abstract: The present invention provides a process for the preparation of high quality amine oxide by reacting a tertiary or secondary amine with hydrogen peroxide as an oxidant in presence of a recyclable heterogeneous layered double hydroxide exchanged with one of the anions of transition metal oxides as a catalyst in a solvent selected from the group consisting of water, water containing dodecylbenzenesulfonic acid sodium salt as additive, and a water miscible organic solvent.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: September 24, 2002
    Assignee: Council of Scientific and Industrial Research
    Inventors: Boyapati M. Choudary, Balagam Bharathi, Mannepalli L. Kantam, Chinta R. V. Reddy, Kondapuram V. Raghavan
  • Process for the preparation of amine oxides
    Publication number: 20020095055
    Abstract: The present invention provides a process for the preparation of high quality amine oxide by reacting a tertiary or secondary amine with hydrogen peroxide as an oxidant in presence of a recyclable heterogeneous layered double hydroxide exchanged with one of the anions of transition metal oxides as a catalyst in a solvent selected from the group consisting of water, water containing dodecylbenzenesulfonic acid sodium salt as additive, and a water miscible organic solvent.
    Type: Application
    Filed: September 27, 2001
    Publication date: July 18, 2002
    Inventors: Boyapati M. Choudary, Balagam Bharathi, Mannepalli L. Kantam, Chinta R.V. Reddy, Kondapuram V. Raghavan