Patents by Inventor Julius Ventz

Julius Ventz 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).

  • Flexible, narrow rung rope ladder for emergency escape
    Patent number: 4846306
    Abstract: A flexible narrow rung rope escape ladder including a pair of parallel support ropes and a series of narrow rungs disposed between the support ropes, the support ropes being spaced from each other such that a user's foot placed on the rung cannot slip sideways during use and no more than one hand or one foot can be placed on a rung at a time.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: July 11, 1989
    Inventor: Julius Ventz