Patents by Inventor Steven R Cordero

Steven R Cordero 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).

  • Particulate Compositions Having Plural Responses to Excitation Radiation
    Publication number: 20140326899
    Abstract: A particulate composition comprises a plurality of particles wherein at least one of the particles comprises at least two different crystalline and/or glass phases, each phase comprising a host lattice and a dopant sensitive to electromagnetic radiation. The different phases simultaneously produce different responses on exposure to photons of the same energy, whereby the output from the particulate composition when exposed to said photons is the sum of the responses from the different phases.
    Type: Application
    Filed: June 16, 2014
    Publication date: November 6, 2014
    Applicant: CABOT SECURITY MATERIALS, INC.
    Inventors: Scott T. Haubrich, Jainisha Shah, Steven R. Cordero
  • Particulate compositions having plural responses to excitation radiation
    Patent number: 8791439
    Abstract: A particulate composition comprises a plurality of particles wherein at least one of the particles comprises at least two different crystalline and/or glass phases, each phase comprising a host lattice and a dopant sensitive to electromagnetic radiation. The different phases simultaneously produce different responses on exposure to photons of the same energy, whereby the output from the particulate composition when exposed to said photons is the sum of the responses from the different phases.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: July 29, 2014
    Assignee: Cabot Security Materials, Inc.
    Inventors: Scott Haubrich, Jainisha Shah, Steven R. Cordero
  • PARTICULATE COMPOSITIONS HAVING PLURAL RESPONSES TO EXCITATION RADIATION
    Publication number: 20120175528
    Abstract: A particulate composition comprises a plurality of particles wherein at least one of the particles comprises at least two different crystalline and/or glass phases, each phase comprising a host lattice and a dopant sensitive to electromagnetic radiation. The different phases simultaneously produce different responses on exposure to photons of the same energy, whereby the output from the particulate composition when exposed to said photons is the sum of the responses from the different phases.
    Type: Application
    Filed: October 1, 2010
    Publication date: July 12, 2012
    Applicant: Cabot Corporation
    Inventors: Scott Haubrich, Jainisha Shah, Steven R. Cordero
  • Organic light emitting devices having carrier blocking layers comprising metal complexes
    Patent number: 7261954
    Abstract: Light emitting devices having blocking layers comprising one or more metal complexes are provided. The blocking layers may serve to block electrons, holes, and/or excitons. Preferably, the devices further comprise a separate emissive layer in which charge and/or excitons are confined. Metal complexes suitable for blocking layers can be selected by comparison of HOMO and LUMO energy levels of materials comprising adjacent layers in devices of the present invention.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: August 28, 2007
    Assignees: The Trustees of Princeton University, The University of Southern California
    Inventors: Mark E. Thompson, Xiaofan Ren, Vadim Adamovich, Steven R Cordero, Brian Wendell D'Andrade, Bert Alleyne, Stephen R. Forrest
  • Organic light emitting devices having carrier blocking layers comprising metal complexes
    Publication number: 20030068528
    Abstract: Light emitting devices having blocking layers comprising one or more metal complexes are provided. The blocking layers may serve to block electrons, holes, and/or excitons. Preferably, the devices further comprise a separate emissive layer in which charge and/or excitons are confined. Metal complexes suitable for blocking layers can be selected by comparison of HOMO and LUMO energy levels of materials comprising adjacent layers in devices of the present invention.
    Type: Application
    Filed: August 23, 2002
    Publication date: April 10, 2003
    Inventors: Mark E. Thompson, Xiaofan Ren, Vadim Adamovich, Steven R. Cordero, Brian Wendell D'Andrade, Bert Alleyne, Stephen R. Forrest