Patents by Inventor Heon Pyeong Jl

Heon Pyeong Jl 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).

  • Buffer structured castor wheel for vacuum cleaner
    Patent number: 7100236
    Abstract: Buffer structured castor wheel for a vacuum cleaner, which is modified and disposed appropriately for preventing the vacuum cleaner from bitting a wall and the like directly, including two or more than two castor wheel assemblies fitted to a front bottom of a vacuum cleaner body each capable of two axes rotation and having a portion protruded beyond an outline of the vacuum cleaner body.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: September 5, 2006
    Assignee: LG Electronics Inc.
    Inventor: Heon Pyeong Jl