Patents by Inventor Franz-Josef Schweins

Franz-Josef Schweins 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).

  • Locking element for a wall facade structure
    Patent number: 5042216
    Abstract: A locking element for a wall facade structure which facilitates accuracy and strength of construction.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: August 27, 1991
    Assignee: Mannesmann AG
    Inventors: Hans Stratmann, Franz-Josef Schweins