Patents by Inventor Vijaya Raghavan Kondapuram

Vijaya Raghavan Kondapuram 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 self-assembling nanobinary and ternary oxy/hydroxides
    Patent number: 8227046
    Abstract: A process is disclosed for preparing and self-assembly of nanobinary and ternary metal oxy/hydroxides with high surface area and 1-10 nm size by aerogel procedure, involving homogenization of metal organic precursors in solvent mixture, controlled hydrolysis, gelation, hydrothermal treatment and finally supercritical drying of solvent.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: July 24, 2012
    Assignee: Council of Scientific and Industrial Research
    Inventors: Boyapati Manoranjan Choudary, Swama Jaya Vallabha, Bontha Ramachandra Reddy, Lakshmi Kantam Mannepalli, Mandapati Mohan Rao, Kottapalli Koteswara Rao, Vijaya Raghavan Kondapuram
  • Process for preparing 2,6-divinylpyridine and 2-methyl-6-vinylpyridine from 2,6-lutidine over modified zeolites
    Patent number: 6897320
    Abstract: The present invention relates to a process for the preparation of 2,6-divinylpyridine and 2-methyl-6-vinylpyridine over modified zeolite catalysts. In particular, it relates to the method for the synthesis of 2,6-divinylpyridine and 2-methyl-6-vinylpyridine from 2,6-lutidine and formaldehyde in vapour phase in an eco-friendly method with high yield and selectivity. This invention provides a non-corrosive, eco-friendly process, where the catalyst can be reused for many times. 2,6-Divinylpyridine is useful stating material in polymer industry.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: May 24, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Shivanand Janardan Kulkarni, Madhavi Gangapuram, Vijaya Raghavan Kondapuram
  • Process for the preparation of nanocrystalline zeolite beta
    Patent number: 6827924
    Abstract: The present invention relates to the preparation of nanocrystalline zeolite beta by a modified aerogel protocol comprising four steps, namely, hydrolysis, nucleation, crystallization and supercritcal drying.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: December 7, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Kottapalli Koteswara Rao, Bhavnari Puma Chandra Rao, Boyapati Manoranjan Choudary, Lakshmi Kantam Mannepalli, Vijaya Raghavan Kondapuram
  • Process for preparing 2,6-divinylpyridine and 2-methyl-6-vinylpyridine from 2,6-lutidine over modified zeolites
    Publication number: 20040192925
    Abstract: The present invention relates to a process for the preparation of 2,6-divinylpyridine and 2-methyl-6-vinylpyridine over modified zeolite catalysts. In particular, it relates to the method for the synthesis of 2,6-divinylpyridine and 2-methyl-6-vinylpyridine from 2,6-lutidine and formaldehyde in vapour phase in an eco-friendly method with high yield and selectivity. This invention provides a non-corrosive, eco-friendly process, where the catalyst can be reused for many times.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 30, 2004
    Inventors: Shivanand Janardan Kulkarni, Madhavi Gangapuram, Vijaya Raghavan Kondapuram
  • Process for the preparation of nanocrystalline zeolite beta
    Publication number: 20040105814
    Abstract: The present invention relates to the preparation of nanocrystalline zeolite beta by a modified aerogel protocol comprising four steps, namely, hydrolysis, nucleation, crystallization and supercritcal drying.
    Type: Application
    Filed: November 29, 2002
    Publication date: June 3, 2004
    Inventors: Kottapalli Koteswara Rao, Bhavnari Puma Chandra Rao, Boyapati Manoranjan Choudary, Lakshmi Kantam Mannepalli, Vijaya Raghavan Kondapuram