Patents by Inventor Narender Nama

Narender Nama 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
  • Liquid phase process for the synthesis of annulated pyridines over molecular sieve catalysts
    Publication number: 20060149068
    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: Application
    Filed: December 30, 2004
    Publication date: July 6, 2006
    Applicant: Council of Scientific and Industrial Research
    Inventors: Shivanand Kulkarni, Veera V. Kandepi, Narender Nama, Kondapuram Raghavan
  • Process for the preparation of ZSM-5 catalyst
    Patent number: 6800272
    Abstract: The present invention provides an improved process for the preparation of ZSM-5 catalyst of the formula 3.25 Na2O. Al2O3.30SiO2.zH2O where z=15-20 water molecules per unit cell by autoclaving a mixture of a pre-prepared seeding gel comprising a mixture of a alkali metal cation, an alkali hydroxide, and a silica source in water, and further amounts of silica source and an aluminium source in the presence of an organic solvent with water as a co-solvent.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: October 5, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Shivanand Janardan Kulkarni, Srinivasu Pavuuri, Narender Nama, Kondapuram Vijay Raghavan
  • Process for the preparation of ZSM-5 catalyst
    Publication number: 20030223932
    Abstract: The present invention provides an improved process for the preparation of ZSM-5 catalyst of the formula 3.25 Na2O. Al2O3.30SiO2.zH2O where z =15-20 water molecules per unit cell by autoclaving a mixture of a pre-prepared seeding gel comprising a mixture of a alkali metal cation, an alkali hydroxide, and a silica source in water, and further amounts of silica source and an aluminium source in the presence of an organic solvent with water as a co-solvent.
    Type: Application
    Filed: March 13, 2002
    Publication date: December 4, 2003
    Inventors: Shivanand Janardan Kulkarni, Srinivasu Pavuluri, Narender Nama, Kondapuram Vijay Raghavan