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).
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Patent number: 8192646Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.Type: GrantFiled: September 9, 2011Date of Patent: June 5, 2012Assignees: Massachusetts Institute of Technology, The United States of America as represented by the Secretary of the NavyInventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
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Patent number: 8121162Abstract: 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: GrantFiled: November 21, 2008Date of Patent: February 21, 2012Assignee: Massachusetts Institute of TechnologyInventors: Hans J. Eisler, Vikram C. Sundar, Michael E. Walsh, Victor I. Klimov, Moungi G. Bawendi, Henry I. Smith
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Publication number: 20110319601Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.Type: ApplicationFiled: September 9, 2011Publication date: December 29, 2011Applicants: The United States of America as represented by the Secretary of the Navy, Massachusetts Institute of TechnologyInventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
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Patent number: 8034259Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.Type: GrantFiled: December 19, 2008Date of Patent: October 11, 2011Assignee: Massachusetts Institute of TechnologyInventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
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Publication number: 20100308275Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.Type: ApplicationFiled: December 19, 2008Publication date: December 9, 2010Inventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
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Patent number: 7690842Abstract: 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: GrantFiled: December 12, 2007Date of Patent: April 6, 2010Assignee: Massachusetts Institute of TechnologyInventors: Moungi G. Bawendi, Vikram C. Sundar
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Publication number: 20090253224Abstract: 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: ApplicationFiled: November 21, 2008Publication date: October 8, 2009Applicant: Massachusetts Institute of TechnologyInventors: Hans J. Eisler, Vikram C. Sundar, Michael E. Walsh, Victor I. Klimov, Moungi G. Bawendi, Henry I. Smith
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Patent number: 7470473Abstract: 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: GrantFiled: November 9, 2006Date of Patent: December 30, 2008Assignee: Massachusetts Institute of TechnologyInventors: Hans J. Eisler, Vikram C. Sundar, Michael E. Walsh, Victor I. Klimov, Moungi G. Bawendi, Henry I. Smith
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Patent number: 7470379Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.Type: GrantFiled: March 16, 2005Date of Patent: December 30, 2008Assignees: Massachusetts Institute of Technology, The United States of America as represented by the Secretary of the NavyInventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
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Patent number: 7326365Abstract: 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: GrantFiled: May 16, 2005Date of Patent: February 5, 2008Assignee: Massachusetts Institute of TechnologyInventors: Moungi G. Bawendi, Vikram C. Sundar
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Patent number: 7319709Abstract: A narrow linewidth fluorescent emitter can incorporate a chromophore into a microcavity that can support low-order optical modes.Type: GrantFiled: July 23, 2002Date of Patent: January 15, 2008Assignee: Massachusetts Institute of TechnologyInventors: Vikram C. Sundar, Moungi G. Bawendi, John D. Joannopoulos, Mihai Ibanescu
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Patent number: 7235361Abstract: 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: GrantFiled: November 3, 2004Date of Patent: June 26, 2007Assignee: Massachusetts Institute of TechnologyInventors: Moungi G Bawendi, Vikram C Sundar, Frederic V Mikulec
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Patent number: 7190870Abstract: 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: GrantFiled: September 17, 2002Date of Patent: March 13, 2007Assignee: Massachusetts Institute of TechnologyInventors: Vikram C. Sundar, Hans J. Eisler, Moungi G. Bawendi
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Patent number: 7150910Abstract: 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: GrantFiled: November 15, 2002Date of Patent: December 19, 2006Assignee: Massachusetts Institute of TechnologyInventors: Hans J. Eisler, Vikram C. Sundar, Michael E. Walsh, Victor I. Klimov, Moungi G. Bawendi, Henry I. Smith
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Patent number: 6921496Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.Type: GrantFiled: March 20, 2001Date of Patent: July 26, 2005Assignees: Massachusetts Institute of Technology, The United States of Americas as represented by the Secretary of the NavyInventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar
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Patent number: 6855551Abstract: 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: GrantFiled: April 12, 2001Date of Patent: February 15, 2005Assignee: Massachusetts Institute of TechnologyInventors: Moungi G. Bawendi, Vikram C. Sundar, Frederic V. Mikulec
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Publication number: 20040017834Abstract: A narrow linewidth fluorescent emitter can incorporate a chromophore into a microcavity that can support low-order optical modes.Type: ApplicationFiled: July 23, 2002Publication date: January 29, 2004Inventors: Vikram C. Sundar, Moungi G. Bawendi, John D. Joannopoulos, Mihai Ibanescu
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Publication number: 20040004982Abstract: 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: ApplicationFiled: November 15, 2002Publication date: January 8, 2004Inventors: Hans J. Eisler, Vikram C. Sundar, Michael E. Walsh, Victor I. Klimov, Moungi G. Bawendi, Henry I. Smith
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Publication number: 20030142944Abstract: 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: ApplicationFiled: September 17, 2002Publication date: July 31, 2003Inventors: Vikram C. Sundar, Hans J. Eisler, Moungi G. Bawendi
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Publication number: 20020182632Abstract: The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.Type: ApplicationFiled: March 20, 2001Publication date: December 5, 2002Inventors: George P. Anderson, Hedi Mattoussi, J. Matthew Mauro, Moungi G. Bawendi, Vikram C. Sundar