Patents by Inventor William Hafner

William Hafner 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).

  • FIRE ESCAPE SYSTEM
    Publication number: 20160008638
    Abstract: A fire escape system wherein anchors for rappelling are strategically placed on the different faces of a multi-story building. This system employs rappelling ropes and harnesses to be used by building occupants in the event of a fire emergency to allow efficient and safe evacuation of all occupants.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 14, 2016
    Inventor: William Hafner