Patents by Inventor Yae Kyun Sung

Yae Kyun Sung 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).

  • Writing tool
    Publication number: 20040136772
    Abstract: A writing tool provided with enhanced and having a plurality of buttons arranged on lateral sides of the writing tool, whereby choice of raw materials for the tool are not limited and the writing tool has an improved endurance and productivity as they can be made of materials with excellent properties required in injection molding.
    Type: Application
    Filed: December 19, 2003
    Publication date: July 15, 2004
    Inventor: Yae Kyun Sung