Patents by Inventor Christopher R. Clough

Christopher R. Clough 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).

  • Nanocrystals including a group IIIA element and a group VA element, method, composition, device and other products
    Patent number: 9534173
    Abstract: A nanocrystal comprising a semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation. Also disclosed is a nanocrystal including a core comprising a first semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, and a shell disposed over at least a portion of the core, the shell comprising a second semiconductor material, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: January 3, 2017
    Assignee: QD VISION, INC.
    Inventors: Christopher R. Clough, Craig Breen, Jonathan S. Steckel, Ebenezer Selwyn Arun Thamban
  • NANOCRYSTALS INCLUDING A GROUP IIIA ELEMENT AND A GROUP VA ELEMENT, METHOD, COMPOSITION, DEVICE AND OTHER PRODUCTS
    Publication number: 20160068750
    Abstract: A nanocrystal comprising a semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation. Also disclosed is a nanocrystal including a core comprising a first semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, and a shell disposed over at least a portion of the core, the shell comprising a second semiconductor material, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation.
    Type: Application
    Filed: September 14, 2015
    Publication date: March 10, 2016
    Inventors: CHRISTOPHER R. CLOUGH, CRAIG BREEN, JONATHAN S. STECKEL, EBENEZER SELWYN ARUN THAMBAN
  • Nanocrystals including a group IIIA element and a group VA element, method, composition, device and other products
    Patent number: 9136428
    Abstract: A population of nanocrystals including a core comprising a first semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, and a shell disposed over at least a portion of the core, the shell comprising a second semiconductor material, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation. Also disclosed is a nanocrystal comprising a nanocrystal core and a shell comprising a semiconductor material comprising at least three chemical elements and obtainable by a process comprising adding a precursor for at least one of the chemical elements of the semiconductor material from a separate source to a nanocrystal core while simultaneously adding amounts of precursors for the other chemical elements of the semiconductor material. Devices including nanocrystals are disclosed.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: September 15, 2015
    Assignee: QD VISION, INC.
    Inventors: Christopher R. Clough, Craig Breen, Jonathan S. Steckel, Ebenezer Selwyn Arun Thamban
  • Nanocrystals including a group IIIA element and a group VA element, method, composition, device and other products
    Patent number: 8354785
    Abstract: A nanocrystal comprising a semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation. Also disclosed is a nanocrystal including a core comprising a first semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, and a shell disposed over at least a portion of the core, the shell comprising a second semiconductor material, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: January 15, 2013
    Assignee: QD Vision, Inc.
    Inventors: Christopher R. Clough, Craig Breen, Jonathan S. Steckel, Ebenezer Selwyn Arun Thambaw
  • Nanocrytals including a Group IIIA element and a Group VA element, method, composition, device and other products
    Publication number: 20100052512
    Abstract: A nanocrystal comprising a semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation. Also disclosed is a nanocrystal including a core comprising a first semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, and a shell disposed over at least a portion of the core, the shell comprising a second semiconductor material, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation.
    Type: Application
    Filed: May 21, 2009
    Publication date: March 4, 2010
    Inventors: Christopher R. Clough, Craig Breen, Jonathan S. Steckel, Ebenezer Selwyn Arun Thambaw