Patents by Inventor Hellmut Berger

Hellmut Berger 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).

  • Fastening element for securing packing sheets
    Patent number: 4756653
    Abstract: A fastening element for packing sheets comprises a body having a lateral surface; a thread provided on the lateral surface; a head plate situated at an end of the body and having a diameter larger than a largest diameter of the thread; and a recess extending in the head plate and terminating in the body. The recess is situated centrally with respect to the head plate and has a part configured for receiving a tool for turning the fastening element.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: July 12, 1988
    Assignee: Rehau AG & Co.
    Inventor: Hellmut Berger