Patents by Inventor Wu Yonggang

Wu Yonggang 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: 9067947
    Abstract: A new class of compounds containing aza-dibenzothiophene or aza-dibenzofuran are provided. The compounds may be used in organic light emitting devices giving improved stability, improved efficiency, long lifetime and low operational voltage. In particular, the compounds may be used as the host material of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: June 30, 2015
    Assignee: Universal Display Corporation
    Inventors: Chun Lin, Bin Ma, Raymond Kwong, Alexey Borisovich Dyatkin, Wu Yonggang, Zeinab M. Elshenawy
  • MATERIALS WITH AZA-DIBENZOTHIOPHENE OR AZA-DIBENZOFURAN CORE FOR PHOLED
    Publication number: 20130060037
    Abstract: A new class of compounds containing aza-dibenzothiophene or aza-dibenzofuran are provided. The compounds may be used in organic light emitting devices giving improved stability, improved efficiency, long lifetime and low operational voltage. In particular, the compounds may be used as the host material of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 7, 2013
    Applicant: Universal Display Corporation
    Inventors: Chun Lin, Bin Ma, Raymond Kwong, Alexey Borisovich Dyatkin, Wu Yonggang, Zeinab M. Elshenawy
  • MATERIALS WITH AZA-DIBENZOTHIOPHENE OR AZA-DIBENZOFURAN CORE FOR PHOLED
    Publication number: 20100187984
    Abstract: A new class of compounds containing aza-dibenzothiophene or aza-dibenzofuran are provided. The compounds may be used in organic light emitting devices giving improved stability, improved efficiency, long lifetime and low operational voltage. In particular, the compounds may be used as the host material of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer.
    Type: Application
    Filed: December 28, 2009
    Publication date: July 29, 2010
    Applicant: Universal Display Corporation
    Inventors: Chun Lin, Bin Ma, Raymond Kwong, Alexey Borisovich Dyatkin, Wu Yonggang, Zeinab M. Elshenawy