Patents by Inventor Gregory S. Kottas

Gregory S. Kottas 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).

  • Organic electroluminescent materials and devices
    Patent number: 10008678
    Abstract: Imidazo[1,2-f]phenanthridine compounds are provided. The compounds have a twisted aryl moiety further substituted by alkyl having four or more atoms. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: June 26, 2018
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi Tsai, Walter Yeager, Jason Brooks, Scott Beers, Gregory S. Kottas, Edward Barron, Raymond Kwong
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20140319504
    Abstract: Imidazo[1,2-f]phenanthridine compounds are provided. The compounds have a twisted aryl moiety further substituted by alkyl having four or more atoms. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.
    Type: Application
    Filed: July 14, 2014
    Publication date: October 30, 2014
    Inventors: Jui-Yi Tsai, Walter Yeager, Jason Brooks, Scott Beers, Gregory S. Kottas, Edward Barron, Raymond Kwong
  • Blue emitter with high efficiency based on imidazo[1,2-f] phenanthridine iridium complexes
    Patent number: 8815415
    Abstract: Imidazo[1,2-f]phenanthridine compounds are provided. The compounds have a twisted aryl moiety further substituted by alkyl having four or more atoms. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: August 26, 2014
    Assignee: Universal Display Corporation
    Inventors: Jui-Yi Tsai, Walter Yeager, Jason Brooks, Scott Beers, Gregory S. Kottas, Edward Barron, Raymond Kwong
  • Blue Emitter with High Efficiency Based on Imidazo[1,2-f] Phenanthridine Iridium Complexes
    Publication number: 20100148663
    Abstract: Imidazo[1,2-f]phenanthridine compounds are provided. The compounds have a twisted aryl moiety further substituted by alkyl having four or more atoms. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 17, 2010
    Applicant: Universal Display Corporation
    Inventors: Jui-Yi TSAI, Walter Yeager, Jason Brooks, Scott Beers, Gregory S. Kottas, Edward Barron, Raymond Kwong