Patents by Inventor Leonhard Hopf

Leonhard Hopf 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).

  • Device for connecting the arms of an angle
    Patent number: 5771597
    Abstract: A device for connecting the arms 4 of an angle, in particular a construction angle, comprises a corner piece 1 with two rails 5 which are at right angle to each other and to which the arms 4 which are formed by straight battens are connected by clamping bands 6.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: June 30, 1998
    Assignee: Klaus Bau-Technik
    Inventor: Leonhard Hopf