Patents by Inventor John R. Linton

John R. Linton 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: 8718437
    Abstract: A composition useful for altering the wavelength of visible or invisible light is disclosed. The composition comprising a solid host material and quantum confined semiconductor nanoparticles, wherein the nanoparticles are included in the composition in amount in the range from about 0.001 to about 15 weight percent based on the weight of the host material. The composition can further include scatterers. An optical component including a waveguide component and quantum confined semiconductor nanoparticles is also disclosed. A device including an optical component is disclosed. A system including an optical component including a waveguide component and quantum confined semiconductor nanoparticles and a light source optically coupled to the waveguide component is also disclosed. A decal, kit, ink composition, and method are also disclosed. A TFEL including quantum confined semiconductor nanoparticles on a surface thereof is also disclosed.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: May 6, 2014
    Assignee: QD Vision, Inc.
    Inventors: Seth Coe-Sullivan, John R. Linton, Craig Breen, Jonathan S. Steckel, Mark Comerford, Rohit Modi
  • Publication number: 20140027673
    Abstract: A quantum dot formulation substantially free of oxygen and, optionally, substantially free of water and a method of making a quantum dot formulation substantially free of oxygen and, optionally, substantially free of water is described. Also described are products including the quantum dot formulation described herein and related methods.
    Type: Application
    Filed: February 7, 2013
    Publication date: January 30, 2014
    Applicant: QD VISION, INC.
    Inventors: Robert J. NICK, Craig Alan BREEN, Chad M. DENTON, Sridhar SADASIVAN, John R. LINTON
  • Publication number: 20120313075
    Abstract: An optical component is disclosed that comprises a first substrate, an optical material comprising quantum confined semiconductor nanoparticles disposed over a predetermined region of a first surface of the first substrate, a layer comprising an adhesive material disposed over the optical material and any portion of the first surface of the first substrate not covered by the optical material, and a second substrate disposed over the layer comprising an adhesive material, wherein the first and second substrates are sealed together. In certain embodiments, the optical component further includes a second optical material comprising quantum confined semiconductor nanoparticles disposed between the layer comprising the adhesive material and the second substrate. Method are also disclosed. Also disclosed are products including the optical component.
    Type: Application
    Filed: April 16, 2012
    Publication date: December 13, 2012
    Inventors: JOHN R. LINTON, Emily M. Squires, Rohit Modi, David Gildea
  • Publication number: 20120286238
    Abstract: A white-light emitting lighting device comprising one or more light emitting light sources (preferably solid state semiconductor light emitting diodes) that emit off-white light during operation, wherein the off-white light includes a spectral output including at least one spectral component in a first spectral region from about 360 nm to about 475 nm, at least one spectral component in a second spectral region from about 475 nm to about 575 nm, and at least one deficiency in at least one other spectral region, and an optical component comprising an optical material for converting at least a portion of the off-white light to one or more predetermined wavelengths, such that light emitted by the lighting device comprises white light, wherein the optical material comprises quantum confined semiconductor nanoparticles. Also disclosed is an optical component, lighting fixture, a cover plate for a lighting fixture, and methods.
    Type: Application
    Filed: February 13, 2012
    Publication date: November 15, 2012
    Inventors: John R. LINTON, Emily M. Squires, Rohit Modi
  • Publication number: 20120256141
    Abstract: A particle comprising nanoparticles encapsulated within a host material is disclosed, wherein the particle includes a coating disposed over at least a portion of the outer surface of the particle. In certain embodiments, nanoparticles have light-emissive properties. In certain embodiments, the coating covers all or substantially all of the outer surface of the particle. The coating can comprise a resin having low oxygen permeability. In certain embodiments, the coating comprises a polyvinyl alcohol compound. In certain embodiments, the coating comprises a polyvinylidene dichloride compound. Other embodiments relate to a powder comprising a particle of the invention, a composition including a particle of the invention, a formulation including a particle of the invention, a coating comprising a particle of the invention, a method for making a particle of the invention, and products and applications including a particle of the invention.
    Type: Application
    Filed: March 7, 2012
    Publication date: October 11, 2012
    Inventors: Robert J. NICK, John R. Linton
  • Publication number: 20120187367
    Abstract: An optical component including an optical material comprising quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles are in a charge neutral state. Further disclosed is an optical component including an optical material comprising quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles are in a charge neutral state, and wherein the optical material is at least partially encapsulated. Methods, optical materials, and devices are also disclosed.
    Type: Application
    Filed: October 27, 2011
    Publication date: July 26, 2012
    Inventors: ROHIT MODI, Patrick Landreman, John R. Linton
  • Publication number: 20120189791
    Abstract: An optical component including an optical material comprising quantum confined semiconductor nanoparticles, wherein the optical material has a solid state photoluminescent efficiency greater than or equal to 60%. Devices including optical materials and/or optical components and methods are also disclosed.
    Type: Application
    Filed: October 27, 2011
    Publication date: July 26, 2012
    Inventors: ROHIT MODI, Patrick Landreman, John R. Linton, Emily M. Squires
  • Publication number: 20120113671
    Abstract: Systems and methods are described that relate to quantum dot (QD) structures for lighting applications. In particular, quantum dots and quantum dot containing inks (comprising mixtures of different wavelength quantum dots) are synthesized for desired optical properties and integrated with an LED source to create a trichromatic white light source. The LED source may be integrated with the quantum dots in a variety of ways, including through the use of a small capillary filled with quantum dot containing ink or a quantum dot containing film placed appropriately within the optical system. These systems may result in improved displays characterized by higher color gamuts, lower power consumption, and reduced cost.
    Type: Application
    Filed: August 9, 2011
    Publication date: May 10, 2012
    Inventors: SRIDHAR SADASIVAN, John R. Linton, David R. Gildea, Seth Coe-Sullivan, Suchit Shah, Robert J. Nick
  • Publication number: 20110245533
    Abstract: A nanoparticle including an inorganic core comprising at least one metal and/or at least one semi-conductor compound comprising at least one metal includes a coating or shell disposed over at least a portion of a surface of the core. The coating can include one or more layers. Each layer of the coating can comprise a metal and/or at least one semiconductor compound. The nanoparticle further includes a ligand attached to a surface of the coating.
    Type: Application
    Filed: January 28, 2011
    Publication date: October 6, 2011
    Inventors: CRAIG BREEN, John R. Linton
  • Publication number: 20110233483
    Abstract: The present inventions relate to optical components which include quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles include a ligand attached to a surface thereof, the ligand being represented by the formula X-Sp-Z, wherein: X represents: a primary amine group, a secondary amine group, a urea, a thiourea, an imidizole group, an amide group, a carboxylic acid or carboxylate group; a phosphoric acid group, a phosphate group, a phosphite group, a phosphinic acid group, a phosphinate group, a phosphine oxide group, a phosphinite group, a phosphine group, an arsenic acid group, an arsenate group, an arsenous acid group, an arsenate group, an arsinic acid group, an arsine oxide group, or an arsine group; Sp represents a group capable of allowing a transfer of charge or an insulating group; and Z represents a multifunctional group including three or more functional groups capable of communicating a specific property or chemical reactivity to the nanoparticle, wherein at le
    Type: Application
    Filed: January 28, 2011
    Publication date: September 29, 2011
    Inventors: CRAIG BREEN, John R. Linton
  • Publication number: 20110199555
    Abstract: A lighting system is disclosed. The lighting system comprises at least one light source comprising a light emitting diode (LED) and one or more phosphors optically coupled to the LED to convert at least a portion of original light emitted by the LED to provide a modified LED light having a first predetermined spectral output, and an optical material that is optically coupled to at least a portion of a surface of a light guide plate and optically coupled to receive at least a portion of the modified LED light and to convert at least a portion of the modified LED light to at least one predetermined wavelength to provide modified light having a second predetermined spectral output, wherein the optical material comprises one or more types of quantum confined semiconductor nanoparticle. A device including a lighting system is also disclosed.
    Type: Application
    Filed: November 11, 2010
    Publication date: August 18, 2011
    Inventors: Seth Coe-Sullivan, John R. Linton, Daniel Cohen, John E. Ritter
  • Publication number: 20110186811
    Abstract: A lighting system including a light source capable of generating light, and an optical component optically coupled to receive at least a portion of the light generated by the light source and convert at least a portion of the light so received to a predetermined wavelength such that the light emitted by the lighting system includes light emission from the light source supplemented with light emission at the predetermined wavelength, wherein the optical component including an optical material comprises quantum confined semiconductor nanoparticles. Also disclosed is an optical component comprising a light guide plate and an optical material disposed over at least a portion of a surface of the light guide plate, the optical material comprising quantum confined semiconductor nanoparticles capable of emitting light in a predetermined spectral region. Devices are also disclosed.
    Type: Application
    Filed: November 5, 2010
    Publication date: August 4, 2011
    Inventors: SETH COE-SULLIVAN, Daniel Cohen, John E. Ritter, John r. Linton
  • Publication number: 20110103064
    Abstract: A solid state lighting device including a light source capable of emitting white light including a blue spectral component and having a deficiency in a spectral region, and an optical component that is positioned to receive at least a portion of the light generated by the light source, the optical component comprising an optical material for converting at least a portion of the blue spectral component of the light to one or more predetermined wavelengths such that light emitted by the solid state lighting device includes light emission from the light source supplemented with light emission at one or more predetermined wavelengths, wherein the optical material comprises quantum confined semiconductor nanoparticles. Also disclosed is lighting fixture, a cover plate for a lighting fixture and a method.
    Type: Application
    Filed: November 5, 2010
    Publication date: May 5, 2011
    Inventors: SETH COE-SULLIVAN, John R. Linton, Sridhar Sadasivan, Emily M. Squires
  • Publication number: 20110081538
    Abstract: The present invention relates to nanoparticles encapsulated within a host material. In one embodiment, a particle comprises a host material including nanoparticles with light-transmissive properties dispersed therein. Other embodiments relate to a powder comprising a particle of the invention, a composition including a particle of the invention, a formulation including a particle of the invention, a coating comprising a particle of the invention, a method for making a particle of the invention, and products and applications including a particle of the invention. In preferred embodiments, a nanoparticle comprises a semiconductor nanocrystal. In preferred embodiments, a host material comprises a wax.
    Type: Application
    Filed: September 2, 2010
    Publication date: April 7, 2011
    Inventor: John R. Linton
  • Publication number: 20100314646
    Abstract: The present inventions relate to optical components which include quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles include a ligand attached to a surface thereof, the ligand being represented by the formula: X-Sp-Z, wherein: X represents a primary amine group, a secondary amine group, a urea, a thiourea, an imidizole group, an amide group, an other nitrogen containing group, a carboxylic acid group, a phosphonic or arsonic acid group, a phosphinic or arsinic acid group, a phosphate or arsenate group, a phosphine or arsine oxide group; Sp represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; and Z represents: (i) a reactive group capable of communicating specific chemical properties to the nanocrystal as well as provide specific chemical reactivity to the surface of the nanocrystal, and/or (ii) a group that is cyclic, halogenated, or polar a-protic.
    Type: Application
    Filed: December 22, 2009
    Publication date: December 16, 2010
    Inventors: Craig Breen, John R. Linton, Jonathan S. Steckel, Marshall Cox, Seth Coe-Sullivan, Mark Comerford
  • Publication number: 20100283072
    Abstract: A quantum dot-based light sheet or film is disclosed. In certain embodiments, a quantum dot-based light sheet includes one or more films or layers comprising quantum dots (QD) disposed on at least a portion of a surface of a waveguide and one or more with LEDs optically coupled to the waveguide. The film or layer can be continuous or discontinuous. The film or layer can optionally further include a host material in which the quantum dots are dispersed. A solid state light-device including a quantum-dot based sheet or film or optical component disclosed herein is also provided.
    Type: Application
    Filed: January 15, 2010
    Publication date: November 11, 2010
    Inventors: Peter T. Kazlas, John R. Linton
  • Publication number: 20100265307
    Abstract: An ink composition comprising a nanomaterial and a liquid vehicle, wherein the liquid vehicle comprises a composition including one or more functional groups that are capable of being cross-linked is disclosed. An ink composition comprising a nanomaterial, a liquid vehicle, and scatterers is also disclosed. An ink composition comprising a nanomaterial and a liquid vehicle, wherein the liquid vehicle comprises a perfluorocompound is further disclosed. A method for inkjet printing an ink including nanomaterial and a liquid vehicle with a surface tension that is not greater than about 25 dyne/cm is disclosed. In certain preferred embodiments, the nanomaterial comprises semiconductor nanocrystals. Devices prepared from inks and methods of the invention are also described.
    Type: Application
    Filed: December 22, 2009
    Publication date: October 21, 2010
    Inventors: John R. Linton, Peter T. Kazlas, Craig Breen, Seth Coe-Sullivan, Vincent Difilippo
  • Publication number: 20100243053
    Abstract: A photovoltaic device includes a heat transfer material comprising a dispersion of down-conversion quantum dots in a host medium. In certain embodiments, the host medium comprises a liquid or fluid. In certain embodiments, a heat transfer material comprises a dispersion of down-conversion quantum dots in a host medium comprising one or more heat-transfer fluids. A heat transfer material including quantum dots is also disclosed. Such devices and heat transfer materials can be useful for light energy conversion, e.g., in solar cells. Solar cells are also disclosed.
    Type: Application
    Filed: December 22, 2009
    Publication date: September 30, 2010
    Inventors: Seth Coe-Sullivan, Peter T. Kazlas, Jonathan S. Steckel, John R. Linton, Maria J. Anc, John E. Ritter, Marshall Cox
  • Publication number: 20090162011
    Abstract: A composition useful for altering the wavelength of visible or invisible light is disclosed. The composition comprising a solid host material and quantum confined semiconductor nanoparticles, wherein the nanoparticles are included in the composition in amount in the range from about 0.001 to about 15 weight percent based on the weight of the host material. The composition can further include scatterers. An optical component including a waveguide component and quantum confined semiconductor nanoparticles is also disclosed. A device including an optical component is disclosed. A system including an optical component including a waveguide component and quantum confined semiconductor nanoparticles and a light source optically coupled to the waveguide component is also disclosed. A decal, kit, ink composition, and method are also disclosed. A TFEL including quantum confined semiconductor nanoparticles on a surface thereof is also disclosed.
    Type: Application
    Filed: September 12, 2008
    Publication date: June 25, 2009
    Inventors: Seth Coe-Sullivan, John R. Linton, Craig Breen, Jonathan S. Steckel, Mark Comerford, Rohit Modi
  • Patent number: 6682641
    Abstract: The invention provides an electrophoresis cassette to cast electrophoresis gels and to separate and analyze molecular components by electrophoresis. The electrophoresis cassette comprises a top plate assembly, a spacer and a bottom plate. The top plate assembly is seated to the bottom plate with the spacer there between to define a thickness of the electrophoresis cassette and to seal an outer perimeter of the assembly. The top plate assembly includes a cathode reservoir connected to a first terminal end of a central plate, and an anode reservoir connected to a second terminal end of the central plate. When the electrophoresis cassette is assembled, the cathode and anode reservoirs are in alignment with the first and second terminal ends of the central plate to facilitate formation of leak-proof seals between the reservoirs and the assembly components.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: January 27, 2004
    Assignee: MJ Research, Inc.
    Inventors: Michael J. Finney, Daniel E. Sullivan, Bruce R. Turner, Alexis Vira, Peter B. Vander Horn, Charles P. Andre, Sean Rubin, Corey Nislow, John R. Linton, William D. Bowers