Patents by Inventor Ja Hyeon CHANG

Ja Hyeon CHANG 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).

  • Window-type smart air purifying ventilator
    Patent number: 10859279
    Abstract: The present invention relates to a smart air purifying ventilator installed on a window frame. More specifically, the smart air purifying ventilator of the present invention includes a frame part installed on a window frame and having two or more openings formed therein, a blowing part installed in the frame part and responsible for introducing or discharging air through the openings, filters for purifying air introduced or discharged by the blowing part, an outdoor side cover part coupled to one side of the frame part, a front panel part coupled to another side of the frame part, and a control unit for comparing the inside and outside air conditions of the window frame and controlling the blowing part to determine inflow or outflow of air.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: December 8, 2020
    Assignee: Gongzone S&T Co., Ltd.
    Inventors: Woo Hyun Kim, Yeon Mee Kim, Keum Young Seo, Ja Hyeon Chang
  • WINDOW-TYPE SMART AIR PURIFYING VENTILATOR
    Publication number: 20190383505
    Abstract: The present invention relates to a smart air purifying ventilator installed on a window frame. More specifically, the smart air purifying ventilator of the present invention includes a frame part installed on a window frame and having two or more openings formed therein, a blowing part installed in the frame part and responsible for introducing or discharging air through the openings, filters for purifying air introduced or discharged by the blowing part, an outdoor side cover part coupled to one side of the frame part, a front panel part coupled to another side of the frame part, and a control unit for comparing the inside and outside air conditions of the window frame and controlling the blowing part to determine inflow or outflow of air.
    Type: Application
    Filed: August 22, 2018
    Publication date: December 19, 2019
    Applicant: Gongzone S&T Co., Ltd.
    Inventors: Woo Hyun KIM, Yeon Mee KIM, Keum Young SEO, Ja Hyeon CHANG