Patents by Inventor Yun Keun Kwak

Yun Keun Kwak 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).

  • ROBOT CLEANER
    Publication number: 20110239382
    Abstract: A robot cleaner includes wheels mounted at a lower side of a main body of the robot cleaner to allow for traveling of the main body, and wire winding prevention members mounted at the lower side of the main body, each wire winding prevention member having one end extending to be contactable with a rim of the corresponding wheel. The wire winding prevention member is preferably a torsion spring.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 6, 2011
    Inventors: Jeihun LEE, Jeongsuk Yoon, Jongwon Park, Yun Keun Kwak, Jichul Kim, Donghoon Yi, Seungmin Baek