Patents by Inventor Ji Youn Cha

Ji Youn Cha 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).

  • Cellular phone
    Patent number: D633463
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: March 1, 2011
    Assignee: LG Electronics Inc.
    Inventors: Seong Jae Lim, Hyon I Kim, Ji Youn Cha, Hyun Chul Kim
  • Mobile phone
    Patent number: D634293
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: March 15, 2011
    Assignee: LG Electronics Inc.
    Inventors: Seong Jae Lim, Hyon I Kim, Ji Youn Cha, Hyun Chul Kim
  • Mobile phone
    Patent number: D697893
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 21, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hyon I Kim, Ji Youn Cha
  • Mobile phone
    Patent number: D713370
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: September 16, 2014
    Assignee: LG Electronics Inc.
    Inventors: Ji Youn Cha, Hyon I Kim, Young Ho Kim