Patents by Inventor Jungwhan Chei

Jungwhan Chei 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).

  • Charging device for an oral irrigator
    Patent number: D766423
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: September 13, 2016
    Assignee: WATER PIK, INC.
    Inventors: Hyunchul Kim, Jungwhan Chei
  • Handheld oral irrigator
    Patent number: D772396
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: November 22, 2016
    Assignee: Water Pik, Inc.
    Inventors: Hyunchul Kim, Jungwhan Chei
  • Oral irrigator with a charging device
    Patent number: D772397
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: November 22, 2016
    Assignee: Water Pik, Inc.
    Inventors: Hyunchul Kim, Jungwhan Chei
  • Handheld oral irrigator
    Patent number: D819196
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: May 29, 2018
    Assignee: Water Pik, Inc.
    Inventors: Hyunchul Kim, Jungwhan Chei