Patents by Inventor K. Das Chowdhury

K. Das Chowdhury 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).

  • Production of fullerenic soot in flames
    Patent number: 6162411
    Abstract: A method for the production of fullerenic nanostructures is described in which unsaturated hydrocarbon fuel and oxygen are combusted in a burner chamber at a sub-atmospheric pressure, thereby establishing a flame. The condensibles of the flame are collected at a post-flame location. The condensibles contain fullerenic nanostructures, such as single and nested nanotubes, single and nested nanoparticles and giant fullerenes. The method of producing fullerenic soot from flames is also described.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: December 19, 2000
    Assignee: Massachusetts Institute of Technology
    Inventors: Jack B. Howard, John B. Vander Sande, K. Das Chowdhury
  • Production of fullerenic nanostructures in flames
    Patent number: 5985232
    Abstract: A method for the production of fullerenic nanostructures is described in which unsaturated hydrocarbon fuel and oxygen are combusted in a burner chamber at a sub-atmospheric pressure, thereby establishing a flame. The condensibles of the flame are collected at a post-flame location. The condensibles contain fullerenic nanostructures, such as single and nested nanotubes, single and nested nanoparticles and giant fullerenes. The method of producing fullerenic soot from flames is also described.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: November 16, 1999
    Assignee: Massachusetts Institute of Technology
    Inventors: Jack B. Howard, John B. Vander Sande, K. Das Chowdhury