Patents by Inventor Doo S. Yang

Doo S. Yang 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).

  • Video cassette recorder
    Patent number: D296208
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: June 14, 1988
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang
  • Video cassette recorder
    Patent number: D299452
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: January 17, 1989
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang
  • Video cassette recorder
    Patent number: D301881
    Type: Grant
    Filed: July 10, 1986
    Date of Patent: June 27, 1989
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang
  • Video cassette recorder
    Patent number: D307900
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: May 15, 1990
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang
  • Video cassette recorder
    Patent number: D307901
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: May 15, 1990
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang
  • Combined television receiver and video cassette recorder
    Patent number: D310522
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: September 11, 1990
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang
  • Video cassette recorder
    Patent number: D311731
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: October 30, 1990
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang
  • Video cassette recorder
    Patent number: D314960
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: February 26, 1991
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang
  • Video cassette recorder
    Patent number: D323502
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: January 28, 1992
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang
  • Video cassette recorder
    Patent number: D324679
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: March 17, 1992
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang
  • Video cassette recorder
    Patent number: D327676
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: July 7, 1992
    Assignee: Gold Star Co., Ltd.
    Inventor: Doo S. Yang