Patents by Inventor Kondapuram V. Raghavan

Kondapuram V. Raghavan 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).

  • Liquid phase process for the synthesis of annulated pyridines over molecular sieve catalysts
    Patent number: 7491828
    Abstract: The present invention relates to a process for producing annulated pyridines by reacting cyclic ketone, aldehyde and ammonia in presence of molecular sieve type catalysts in an environmentally friendly, economical and highly selective heterogeneous method.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: February 17, 2009
    Assignee: Council of Scientific and Industrial Research
    Inventors: Shivanand J. Kulkarni, Veera V. Krishna Kandepi, Narender Nama, Kondapuram V. Raghavan
  • 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 synthesis of highly active modified carbon supported palladium catalyst
    Patent number: 6624109
    Abstract: The present invention relates to a process for the synthesis of highly active modified carbon supported palladium catalyst by simultaneously impregnating activated carbon with a palladium precursor and an aluminium precursor. The carbon supported palladium catalyst is useful for the hydrodechlorination of dichlorodifluoromethane to produce difluoromethane.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: September 23, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Janmanchi K. Murthy, Sridara C. Shekar, Kamaraju S. Ramarao, Burri D. Raju, 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 synthesis of highly active modified carbon supported palladium catalyst
    Publication number: 20030078461
    Abstract: The present invention relates to a process for the synthesis of highly active modified carbon supported palladium catalyst by simultaneously impregnating activated carbon with a palladium precursor and an aluminium precursor. The carbon supported palladium catalyst is useful for the hydrodechlorination of dichlorodifluoromethane to produce difluoromethane.
    Type: Application
    Filed: October 23, 2001
    Publication date: April 24, 2003
    Inventors: Janmanchi K. Murthy, Sridara C. Shekar, Kamaraju S. Ramarao, Burri D. Raju, 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 in situ synthesis of supported heteropoly acids and salts thereof
    Patent number: 6534435
    Abstract: The present invention relates to a process for the in situ synthesis of acid or cationic form of heteropolyacid of molybdenum or tungsten due to the interaction of the cationic compound with the acidic or salt form of Mo or W and the phosphate ion of a solid support.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: March 18, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Potharaju S. S. Prasad, Kondapuram V. Raghavan, Iragavarapu Suryanarayana, Katabathini N. Rao, Srilakshmi Chilukoti, Matam S. Kumar, Kommasami B. Reddy
  • Use of two plant phenols in the treatment of arteriosclerosis
    Patent number: 6458831
    Abstract: This invention relates to the isolation of two compounds namely (−)- Matairesinol and (−)- Wikstromol. These together with or associated with therapeutically acceptable additives are useful as antioxidants and as free radical scavengers.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: October 1, 2002
    Assignee: Council of Scientific and Industrial Research
    Inventors: Janaswamy M. Rao, Ashok K. Tiwari, Pullela V. Srinivas, Jhillu S. Yadav, 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