Patents by Inventor Elizabeth Furar

Elizabeth Furar 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).

  • Coating composition having mechanochromic crystals
    Patent number: 9133362
    Abstract: A mechanochromic coating composition is disclosed comprising a binder composition and a crystalline mechanophore. The mechanophore changes color upon application of a mechanical load to the coating composition.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: September 15, 2015
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Charles R. Hickenboth, Gregory J. McCollum, Elizabeth Furar
  • COATING COMPOSITION HAVING MECHANOCHROMIC CRYSTALS
    Publication number: 20140013864
    Abstract: A mechanochromic coating composition is disclosed comprising a binder composition and a crystalline mechanophore. The mechanophore changes color upon application of a mechanical load to the coating composition.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 16, 2014
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Charles R. Hickenboth, Gregory J. McCollum, Elizabeth Furar
  • Clear to circular polarizing photochromic devices and methods of making the same
    Patent number: 8089678
    Abstract: The present invention provides optical elements comprising a photochromic linear polarizing element and a birefringent layer that circularly or elliptically polarizes transmitted radiation. The photochromic linear polarizing element comprises a substrate and either: (1) a coating comprising an aligned, thermally reversible photochromic-dichroic compound having an average absorption ratio of at least 1.5 in an activated state, and being operable for switching from a first absorption state to a second absorption state in response to actinic radiation, to revert back to the first absorption state in response to thermal energy, and to linearly polarize transmitted radiation in at least one of the two states; or (2) an at least partially ordered polymeric sheet connected to the substrate; and a thermally reversible photochromic-dichroic compound that is at least partially aligned with the polymeric sheet and has an average absorption ratio greater than 2.3 in the activated state.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: January 3, 2012
    Assignee: Transitions Optical, Inc
    Inventors: Anil Kumar, Peter C. Foller, Elizabeth Furar, Forrest R. Blackburn
  • Clear to circular polarizing photochromic devices
    Patent number: 8077373
    Abstract: The present invention provides composite optical elements including a photochromic linear polarizing element and a birefringent layer such that composite optical element circularly or elliptically polarizes transmitted radiation. The photochromic linear polarizing element is formed from (i) an at least partially ordered polymeric sheet; and (ii) a reversible photochromic-dichroic material that is at least partially aligned with the polymeric sheet and has an average absorption ratio of at least 1.5 in the activated state. The birefringent layer includes a polymeric coating or a polymeric sheet connected to the photochromic linear polarizing element.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: December 13, 2011
    Assignee: Transitions Optical, Inc.
    Inventors: Anil Kumar, Peter C. Foller, Elizabeth Furar, Forrest R. Blackburn
  • CLEAR TO CIRCULAR POLARIZING PHOTOCHROMIC DEVICES
    Publication number: 20110080628
    Abstract: The present invention provides composite optical elements including a photochromic linear polarizing element and a birefringent layer such that composite optical element circularly or elliptically polarizes transmitted radiation. The photochromic linear polarizing element is formed from (i) an at least partially ordered polymeric sheet; and (ii) a reversible photochromic-dichroic material that is at least partially aligned with the polymeric sheet and has an average absorption ratio of at least 1.5 in the activated state. The birefringent layer includes a polymeric coating or a polymeric sheet connected to the photochromic linear polarizing element.
    Type: Application
    Filed: September 1, 2010
    Publication date: April 7, 2011
    Applicant: TRANSITIONS OPTICAL, INC.
    Inventors: Anil Kumar, Peter C. Foller, Elizabeth Furar, Forrest R. Blackburn
  • CLEAR TO CIRCULAR POLARIZING PHOTOCHROMIC DEVICES AND METHODS OF MAKING THE SAME
    Publication number: 20090135462
    Abstract: The present invention provides optical elements comprising a photochromic linear polarizing element and a birefringent layer that circularly or elliptically polarizes transmitted radiation. The photochromic linear polarizing element comprises a substrate and either: (1) a coating comprising an aligned, thermally reversible photochromic-dichroic compound having an average absorption ratio of at least 1.5 in an activated state, and being operable for switching from a first absorption state to a second absorption state in response to actinic radiation, to revert back to the first absorption state in response to thermal energy, and to linearly polarize transmitted radiation in at least one of the two states; or (2) an at least partially ordered polymeric sheet connected to the substrate; and a thermally reversible photochromic-dichroic compound that is at least partially aligned with the polymeric sheet and has an average absorption ratio greater than 2.3 in the activated state.
    Type: Application
    Filed: December 18, 2008
    Publication date: May 28, 2009
    Applicant: TRANSITIONS OPTICAL, INC.
    Inventors: Anil Kumar, Peter C. Foller, Elizabeth Furar, Forrest R. Blackburn