Patents Assigned to CHARJENPRO
  • Ear tip with three layer sleeves
    Patent number: D922987
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: June 22, 2021
    Assignee: CHARJENPRO
    Inventor: Chol Ho Yoo
  • Charging cable
    Patent number: D970506
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: November 22, 2022
    Assignee: CHARJENPRO
    Inventor: Chol Ho Yoo