Patents by Inventor Jung Jae Jeon

Jung Jae Jeon 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).

  • ECO-FRIENDLY PHOTORESIST STRIPPER COMPOSITION
    Publication number: 20250053093
    Abstract: The present invention relates to an eco-friendly photoresist stripper composition and, more specifically, to an eco-friendly photoresist stripper composition including 20-50 wt % of a glycol ether, 1-10 wt % of a cyclic alcohol, 1-10 wt % of an inhibitor for preventing the corrosion of aluminum and copper, 0.5-10 wt % of an alkanolamine, 0.01-10 wt % of a reducing sulfur compound and the balance of water, thereby generating no toxic formaldehyde.
    Type: Application
    Filed: November 4, 2022
    Publication date: February 13, 2025
    Inventors: Sang Moon YUN, Chi Sung IHN, Jung Ig JEON, Hyuck Jae LEE
  • Mirror with base
    Patent number: D854838
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: July 30, 2019
    Assignee: Coway Co., Ltd.
    Inventors: Jung Jae Jeon, Nari Lee
  • Water purifier
    Patent number: D868522
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: December 3, 2019
    Assignee: Coway Co., Ltd.
    Inventor: Jung Jae Jeon
  • Air purifier
    Patent number: D909557
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 2, 2021
    Assignee: WOONGJIN COWAY CO., LTD.
    Inventors: Jung Jae Jeon, Su Min Shin
  • Air purifier
    Patent number: D927667
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: August 10, 2021
    Assignee: Woongjin Coway Co., Ltd.
    Inventors: Jung Jae Jeon, Su Min Shin
  • Water purifier
    Patent number: D933410
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: October 19, 2021
    Assignee: Coway Co., Ltd.
    Inventor: Jung Jae Jeon