Patents by Inventor Oe-Hyeon Han

Oe-Hyeon Han 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).

  • OXYGEN RESPIRATOR HAVING EMERGENCY ILLUMINATION LAMP FOR USE IN CASE OF FIRE
    Publication number: 20120118289
    Abstract: The present invention relates to an oxygen respirator having an emergency illumination lamp for use in case of fire, and more specially to an oxygen respirator having an emergency illumination lamp for use in case of a fire to help people escape safely from a low visibility, oxygen-depleted area when a fire, disaster or emergency occurs.
    Type: Application
    Filed: July 19, 2010
    Publication date: May 17, 2012
    Inventor: Oe-Hyeon Han