Patents by Inventor Hyun Song Park

Hyun Song Park 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).

  • PLURALITY OF HOST MATERIALS, ORGANIC ELECTROLUMINESCENT COMPOUND, AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    Publication number: 20240138260
    Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of host compounds and/or an organic electroluminescent compound according to the present disclosure as an organic electroluminescent material, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan characteristics can be provided.
    Type: Application
    Filed: September 8, 2023
    Publication date: April 25, 2024
    Inventors: Ji-Song JUN, Hong-Se OH, Dong-Hyung LEE, Sang-Hee CHO, Du-Yong PARK, Hyun-Woo KANG, Jin-Man KIM
  • Front face of a confectionery package
    Patent number: D380146
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: June 24, 1997
    Assignee: Lotte Confectionery Co., Ltd.
    Inventor: Hyun Song Park
  • Portion of wrapping paper of confectionery product
    Patent number: D381896
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: August 5, 1997
    Assignee: Lotte Confectionery Co., Ltd.
    Inventor: Hyun Song Park
  • Package for chocolate- and almond-covered pretzel sticks
    Patent number: D382477
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: August 19, 1997
    Assignee: Lotte Confectionery Co., Ltd.
    Inventor: Hyun Song Park
  • Package for biscuit sticks
    Patent number: D382478
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: August 19, 1997
    Assignee: Lotte Confectionery Co., Ltd.
    Inventor: Hyun Song Park
  • Flexible wrapper
    Patent number: D386671
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: November 25, 1997
    Assignee: Lotte Confectionery Co., Ltd.
    Inventor: Hyun Song Park
  • Package for confectionary sticks
    Patent number: D392885
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: March 31, 1998
    Assignee: Lotte Confectionery Co., Ltd.
    Inventor: Hyun Song Park
  • Portion of wrapping paper for confectionery product
    Patent number: D402195
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: December 8, 1998
    Assignee: Lotte Confectionery Co., Ltd.
    Inventor: Hyun Song Park