Patents by Inventor Eun Chong Hahn

Eun Chong Hahn 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).

  • Publication number: 20020088147
    Abstract: A rotatable shoe having a rotating device which is attached to an outsole of the shoe and includes a rotating body and an outer housing. The rotating body is secured to the outsole of the shoe and is defined, at a rotating center thereof, with an inserting groove which extends in an axial direction. The rotating body has a first inward flange portion which is formed adjacent to an upper end of the inserting groove and a stepped portion which is formed on a circumferential outer surface of and at a predetermined distance from an upper end of the rotating body. The outer housing possesses a recessed configuration in a manner such that it is coupled to the rotating body.
    Type: Application
    Filed: April 11, 2001
    Publication date: July 11, 2002
    Inventors: Young Han Joo, Eun Chong Hahn