Patents by Inventor Won Jun YOO

Won Jun YOO 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).

  • Multi-step height adjuster
    Patent number: 12049394
    Abstract: According to an aspect of the present disclosure, a multi-step height adjuster includes a base tube portion including a first base tube and a second base tube vertically reciprocating inside the first base tube; a spindle portion including a first spindle installed inside the first base tube to vertically reciprocate and a second spindle installed inside the second base tube to vertically reciprocate; and an adjustment portion installed in the spindle portion to transmit power to the spindle portion, wherein the first spindle and the second base tube are integrally moved.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 30, 2024
    Assignee: Samhongsa Co., Ltd.
    Inventors: Won Jun Yoo, Wan Soo Kim
  • MULTI-STEP HEIGHT ADJUSTER
    Publication number: 20210339990
    Abstract: According to an aspect of the present disclosure, a multi-step height adjuster includes a base tube portion including a first base tube and a second base tube vertically reciprocating inside the first base tube; a spindle portion including a first spindle installed inside the first base tube to vertically reciprocate and a second spindle installed inside the second base tube to vertically reciprocate; and an adjustment portion installed in the spindle portion to transmit power to the spindle portion, wherein the first spindle and the second base tube are integrally moved.
    Type: Application
    Filed: August 30, 2019
    Publication date: November 4, 2021
    Inventors: Won Jun YOO, Wan Soo KIM