Patents by Inventor Josef Kotschner

Josef Kotschner 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).

  • Carpenter hammer
    Patent number: 6339974
    Abstract: A hammerhead made of tool steel and having in combination a pair of asymmetric claws and a magnetic nail holder, the holder being in the form of a T-shaped notch and a permanent magnet having a very high field intensity as compared to the conventional permannet magnet.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: January 22, 2002
    Inventors: Josef Kotschner, Ralph-Paul Kotschner