Patents by Inventor Hok-Lai Wong

Hok-Lai Wong 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).

  • Patent number: 11765971
    Abstract: A highly rigid tetradentate ligand is combined with a gold(III) ion as a thermally stable tetradentate gold(III) complex. The tetradentate gold(III) complex is a tetradentate gold(III) compound that can be used as a light-emitting material which can be used for fabricated of light-emitting devices such as an organic light-emitting diode (OLED). The tetradentate gold(III) compound can be deposited as a layer or a component of a layer using a solution-process or a vacuum deposition process. The luminescent tetradentate gold(III) compounds are robust and can provide electroluminescence (EL) with a high efficiency and brightness.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: September 19, 2023
    Assignee: The University of Hong Kong
    Inventors: Vivian Wing-Wah Yam, Hok-Lai Wong, Yiu-Wing Wong, Mei-Yee Chan
  • Publication number: 20210249612
    Abstract: A highly rigid tetradentate ligand is combined with a gold(III) ion as a thermally stable tetradentate gold(III) complex. The tetradentate gold(III) complex is a tetradentate gold(III) compound that can be used as a light-emitting material which can be used for fabricated of light-emitting devices such as an organic light-emitting diode (OLED). The tetradentate gold(III) compound can be deposited as a layer or a component of a layer using a solution-process or a vacuum deposition process. The luminescent tetradentate gold(III) compounds are robust and can provide electroluminescence (EL) with a high efficiency and brightness.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 12, 2021
    Inventors: Vivian Wing-Wah YAM, Hok-Lai WONG, Yiu-Wing WONG, Mei-Yee CHAN
  • Patent number: 11018310
    Abstract: A highly rigid tetradentate ligand is combined with a gold(III) ion as a thermally stable tetradentate gold(III) complex. The tetradentate gold(III) complex is a tetradentate gold(III) compound that can be used as a light-emitting material which can be used for fabricated of light-emitting devices such as an organic light-emitting diode (OLED). The tetradentate gold(III) compound can be deposited as a layer or a component of a layer using a solution-process or a vacuum deposition process. The luminescent tetradentate gold(III) compounds are robust and can provide electroluminescence (EL) with a high efficiency and brightness.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: May 25, 2021
    Assignee: The University of Hong Kong
    Inventors: Vivian Wing-Wah Yam, Hok-Lai Wong, Yiu-Wing Wong, Mei-Yee Chan
  • Publication number: 20170222164
    Abstract: A highly rigid tetradentate ligand is combined with a gold(III) ion as a thermally stable tetradentate gold(III) complex. The tetradentate gold(III) complex is a tetradentate gold(III) compound that can be used as a light-emitting material which can be used for fabricated of light-emitting devices such as an organic light-emitting diode (OLED). The tetradentate gold(III) compound can be deposited as a layer or a component of a layer using a solution-process or a vacuum deposition process. The luminescent tetradentate gold(III) compounds are robust and can provide electroluminescence (EL) with a high efficiency and brightness.
    Type: Application
    Filed: January 30, 2017
    Publication date: August 3, 2017
    Inventors: Vivian Wing-Wah Yam, Hok-Lai Wong, Yiu-Wing Wong, Mei-Yee Chan
  • Patent number: 9708528
    Abstract: In one embodiment, provided are a new class of diarylethene-containing photochromic compounds with the incorporation of silicon- or phosphorus-containing heterocycles into the “ethene” part of the diarylethene backbone that has been shown to be capable of displaying tunable, robust and thermally stable photochromic properties. Also provided are methods for synthesizing these compounds, as well as uses of these compounds as these compounds may be used as the photochromic layer in an optical recording material and other optical functioning devices.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: July 18, 2017
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Jacky Chi-Hung Chan, Hok-Lai Wong, Nathan Man-Wai Wu
  • Publication number: 20150361332
    Abstract: In one embodiment, provided are a new class of diarylethene-containing photochromic compounds with the incorporation of silicon- or phosphorus-containing heterocycles into the “ethene” part of the diarylethene backbone that has been shown to be capable of displaying tunable, robust and thermally stable photochromic properties. Also provided are methods for synthesizing these compounds, as well as uses of these compounds as these compounds may be used as the photochromic layer in an optical recording material and other optical functioning devices.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 17, 2015
    Inventors: Vivian Wing-Wah Yam, Jacky Chi-Hung Chan, Hok-Lai Wong, Nathan Man-Wai Wu