Patents by Inventor Vikram C. Sundar

Vikram C. Sundar 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).

  • Patent number: 8192646
    Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: June 5, 2012
    Assignees: Massachusetts Institute of Technology, The United States of America as represented by the Secretary of the Navy
    Inventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
  • Patent number: 8121162
    Abstract: A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals including a Group II-VI compound, the nanocrystals being distributed in a metal oxide matrix. The grating can have a periodicity from 200 nm to 500 nm.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: February 21, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Hans J. Eisler, Vikram C. Sundar, Michael E. Walsh, Victor I. Klimov, Moungi G. Bawendi, Henry I. Smith
  • Publication number: 20110319601
    Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.
    Type: Application
    Filed: September 9, 2011
    Publication date: December 29, 2011
    Applicants: The United States of America as represented by the Secretary of the Navy, Massachusetts Institute of Technology
    Inventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
  • Patent number: 8034259
    Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: October 11, 2011
    Assignee: Massachusetts Institute of Technology
    Inventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
  • Publication number: 20100308275
    Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.
    Type: Application
    Filed: December 19, 2008
    Publication date: December 9, 2010
    Inventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
  • Patent number: 7690842
    Abstract: Temperature-sensing compositions can include an inorganic material, such as a semiconductor nanocrystal. The nanocrystal can be a dependable and accurate indicator of temperature. The intensity of emission of the nanocrystal varies with temperature and can be highly sensitive to surface temperature. The nanocrystals can be processed with a binder to form a matrix, which can be varied by altering the chemical nature of the surface of the nanocrystal. A nanocrystal with a compatibilizing outer layer can be incorporated into a coating formulation and retain its temperature sensitive emissive properties.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: April 6, 2010
    Assignee: Massachusetts Institute of Technology
    Inventors: Moungi G. Bawendi, Vikram C. Sundar
  • Publication number: 20090253224
    Abstract: A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals including a Group II-VI compound, the nanocrystals being distributed in a metal oxide matrix. The grating can have a periodicity from 200 nm to 500 nm.
    Type: Application
    Filed: November 21, 2008
    Publication date: October 8, 2009
    Applicant: Massachusetts Institute of Technology
    Inventors: Hans J. Eisler, Vikram C. Sundar, Michael E. Walsh, Victor I. Klimov, Moungi G. Bawendi, Henry I. Smith
  • Patent number: 7470473
    Abstract: A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals including a Group II-VI compound, the nanocrystals being distributed in a metal oxide matrix. The grating can have a periodicity from 200 nm to 500 nm.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: December 30, 2008
    Assignee: Massachusetts Institute of Technology
    Inventors: Hans J. Eisler, Vikram C. Sundar, Michael E. Walsh, Victor I. Klimov, Moungi G. Bawendi, Henry I. Smith
  • Patent number: 7470379
    Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: December 30, 2008
    Assignees: Massachusetts Institute of Technology, The United States of America as represented by the Secretary of the Navy
    Inventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
  • Patent number: 7326365
    Abstract: Temperature-sensing compositions can include an inorganic material, such as a semiconductor nanocrystal. The nanocrystal can be a dependable and accurate indicator of temperature. The intensity of emission of the nanocrystal varies with temperature and can be highly sensitive to surface temperature. The nanocrystals can be processed with a binder to form a matrix, which can be varied by altering the chemical nature of the surface of the nanocrystal. A nanocrystal with a compatibilizing outer layer can be incorporated into a coating formulation and retain its temperature sensitive emissive properties.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: February 5, 2008
    Assignee: Massachusetts Institute of Technology
    Inventors: Moungi G. Bawendi, Vikram C. Sundar
  • Patent number: 7319709
    Abstract: A narrow linewidth fluorescent emitter can incorporate a chromophore into a microcavity that can support low-order optical modes.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: January 15, 2008
    Assignee: Massachusetts Institute of Technology
    Inventors: Vikram C. Sundar, Moungi G. Bawendi, John D. Joannopoulos, Mihai Ibanescu
  • Patent number: 7235361
    Abstract: The present invention provides a composition comprising fluorescent semiconductor nanocrystals associated to a compound, wherein the nanocrystals have a characteristic spectral emission, wherein said spectral emission is tunable to a desired wavelength by controlling the size of the nanocrystal, and wherein said emission provides information about a biological state or event.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: June 26, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Moungi G Bawendi, Vikram C Sundar, Frederic V Mikulec
  • Patent number: 7190870
    Abstract: A composite including a plurality of semiconductor nanocrystals distributed in a metal oxide matrix can be used as an optical amplifier, a waveguide or a laser.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: March 13, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Vikram C. Sundar, Hans J. Eisler, Moungi G. Bawendi
  • Patent number: 7150910
    Abstract: A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals including a Group II–VI compound, the nanocrystals being distributed in a metal oxide matrix. The grating can have a periodicity from 200 nm to 500 nm.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: December 19, 2006
    Assignee: Massachusetts Institute of Technology
    Inventors: Hans J. Eisler, Vikram C. Sundar, Michael E. Walsh, Victor I. Klimov, Moungi G. Bawendi, Henry I. Smith
  • Patent number: 6921496
    Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: July 26, 2005
    Assignees: Massachusetts Institute of Technology, The United States of Americas as represented by the Secretary of the Navy
    Inventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
  • Patent number: 6855551
    Abstract: The present invention provides a composition comprising fluorescent semiconductor nanocrystals associated to a compound, wherein the nanocrystals have a characteristic spectral emission, wherein said spectral emission is tunable to a desired wavelength by controlling the size of the nanocrystal, and wherein said emission provides information about a biological state or event.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: February 15, 2005
    Assignee: Massachusetts Institute of Technology
    Inventors: Moungi G. Bawendi, Vikram C. Sundar, Frederic V. Mikulec
  • Publication number: 20040017834
    Abstract: A narrow linewidth fluorescent emitter can incorporate a chromophore into a microcavity that can support low-order optical modes.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Inventors: Vikram C. Sundar, Moungi G. Bawendi, John D. Joannopoulos, Mihai Ibanescu
  • Publication number: 20040004982
    Abstract: A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals including a Group II-VI compound, the nanocrystals being distributed in a metal oxide matrix. The grating can have a periodicity from 200 nm to 500 nm.
    Type: Application
    Filed: November 15, 2002
    Publication date: January 8, 2004
    Inventors: Hans J. Eisler, Vikram C. Sundar, Michael E. Walsh, Victor I. Klimov, Moungi G. Bawendi, Henry I. Smith
  • Publication number: 20030142944
    Abstract: A composite including a plurality of semiconductor nanocrystals distributed in a metal oxide matrix can be used as an optical amplifier, a waveguide or a laser.
    Type: Application
    Filed: September 17, 2002
    Publication date: July 31, 2003
    Inventors: Vikram C. Sundar, Hans J. Eisler, Moungi G. Bawendi
  • Publication number: 20020182632
    Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.
    Type: Application
    Filed: March 20, 2001
    Publication date: December 5, 2002
    Inventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar