Patents by Inventor Guihwan O

Guihwan O 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).

  • Method for Manufacturing Bristles on Toothbrush and Toothbrush Using Same
    Publication number: 20150257525
    Abstract: A method for manufacturing bristles on a toothbrush and a toothbrush using the same are provided, in which the bristles on a toothbrush have a core-sheath double structure and various cross-sectional shapes, have uneven portions formed on a surface thereof by a tapering process while containing inorganic particles, and include inorganic or organic antimicrobial materials.
    Type: Application
    Filed: October 4, 2013
    Publication date: September 17, 2015
    Inventors: Ki-Tae Kang, Guihwan O, Yeon-Bok Kang