Patents by Inventor Yoo Hyeong-Keor

Yoo Hyeong-Keor 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).

  • Floor covering based on perforated PVC sheet
    Publication number: 20030161994
    Abstract: Disclosed is a floor covering, in which a surface material such as wood, Korean paper, textile fabric, and thermosetting resin sheet is attached to a surface of a high density perforated PVC sheet. Shrinkage or expansion differences between the surface material and the PVC sheet are removed because multiple holes of the high density perforated PVC sheet offset shrinkage or expansion of the PVC sheet, thereby cracks or curling of the floor covering are prevented and the floor covering can have a smooth appearance.
    Type: Application
    Filed: February 22, 2002
    Publication date: August 28, 2003
    Inventors: Woo Je-Suk, Yoo Hyeong-Keor