Patents by Inventor Byeong-Rok Na

Byeong-Rok Na 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).

  • HYDROGEN TRANSFER TUBE
    Publication number: 20150083264
    Abstract: Disclosed is a hydrogen transfer tube, including: a first layer having elusion resistance to hydrogen; and a second layer surrounding an outer surface of the first layer, formed of polyurethane in order to prevent the permeation of hydrogen. In one form the hydrogen transfer tube includes at least one protective layer surrounding the first layer and second layer.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 26, 2015
    Inventors: Seong-Hwa Choo, Byeong-Rok Na