Patents by Inventor John R. Ell

John R. Ell 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).

  • Curable liquid composite light emitting diode encapsulant
    Patent number: 8455607
    Abstract: A curable liquid polysiloxane/TiO2 composite for use as a light emitting diode encapsulant is provided, comprising: a polysiloxane with TiO2 domains having an average domain size of less than 5 nm, wherein the curable liquid polysiloxane/TiO2 composite contains 20 to 60 mol % TiO2 (based on total solids); wherein the curable liquid polysiloxane/TiO2 composite exhibits a refractive index of >1.61 to 1.7 and wherein the curable liquid polysiloxane/TiO2 composite is a liquid at room temperature and atmospheric pressure. Also provided is a light emitting diode manufacturing assembly.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: June 4, 2013
    Assignees: Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLC
    Inventors: Weijun Zhou, Binghe Gu, John W. Lyons, Allen S. Bulick, Garo Khanarian, Paul J. Popa, John R. Ell
  • Light emitting diode manufacturing method
    Patent number: 8450445
    Abstract: A method of making a light emitting diode (LED) having an optical element is provided, comprising: providing a curable liquid polysiloxane/TiO2 composite, which exhibits a refractive index of >1.61 to 1.7 and which is a liquid at room temperature and atmospheric pressure; providing a semiconductor light emitting diode die having a face, wherein the semiconductor light emitting diode die emits light through the face; contacting the semiconductor light emitting diode die with the curable liquid polysiloxane/TiO2 composite; and, curing the curable liquid polysiloxane/TiO2 composite to form an optical element; wherein at least a portion of the optical element is adjacent to the face.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: May 28, 2013
    Assignees: Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLC
    Inventors: John W. Lyons, Binghe Gu, Allen S. Bulick, Weijun Zhou, Paul J. Popa, Garo Khanarian, John R. Ell
  • Curable liquid composite light emitting diode encapsulant
    Publication number: 20130045292
    Abstract: A curable liquid polysiloxane/TiO2 composite for use as a light emitting diode encapsulant is provided, comprising: a polysiloxane with TiO2 domains having an average domain size of less than 5 nm, wherein the curable liquid polysiloxane/TiO2 composite contains 20 to 60 mol % TiO2 (based on total solids); wherein the curable liquid polysiloxane/TiO2 composite exhibits a refractive index of >1.61 to 1.7 and wherein the curable liquid polysiloxane/TiO2 composite is a liquid at room temperature and atmospheric pressure. Also provided is a light emitting diode manufacturing assembly.
    Type: Application
    Filed: August 17, 2011
    Publication date: February 21, 2013
    Applicant: ROHM AND HAAS ELECTRONIC MATERIALS LLC
    Inventors: Weijun Zhou, Binghe Gu, John W. Lyons, Allen S. Bulick, Garo Khanarian, Paul J. Popa, John R. Ell
  • Light emitting diode manufacturing method
    Publication number: 20130045552
    Abstract: A method of making a light emitting diode (LED) having an optical element is provided, comprising: providing a curable liquid polysiloxane/TiO2 composite, which exhibits a refractive index of >1.61 to 1.7 and which is a liquid at room temperature and atmospheric pressure; providing a semiconductor light emitting diode die having a face, wherein the semiconductor light emitting diode die emits light through the face; contacting the semiconductor light emitting diode die with the curable liquid polysiloxane/TiO2 composite; and, curing the curable liquid polysiloxane/TiO2 composite to form an optical element; wherein at least a portion of the optical element is adjacent to the face.
    Type: Application
    Filed: August 17, 2011
    Publication date: February 21, 2013
    Applicant: ROHM AND HAAS ELECTRONIC MATERIALS LLC
    Inventors: John W. Lyons, Binghe Gu, Allen S. Bulick, Weijun Zhou, Paul J. Popa, Garo Khanarian, John R. Ell
  • Method of making light emitting diodes
    Patent number: 8257988
    Abstract: A method of making a light emitting diode (LED) having an optical element is provided, comprising: providing a curable liquid polysiloxane/TiO2 composite, which exhibits a refractive index of >1.61 to 1.7 and which is a liquid at room temperature and atmospheric pressure; providing a semiconductor light emitting diode die having a face, wherein the semiconductor light emitting diode die emits light through the face; contacting the semiconductor light emitting diode die with the curable liquid polysiloxane/TiO2 composite; and, curing the curable liquid polysiloxane/TiO2 composite to form an optical element; wherein at least a portion of the optical element is adjacent to the face.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: September 4, 2012
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Paul Joseph Popa, Garo Khanarian, Weijun Zhou, John R. Ell