Patents by Inventor Lothar Pietryga

Lothar Pietryga 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).

  • Collapsible, portable barbecue grill
    Patent number: 4334516
    Abstract: A portable barbecue grill which can be folded together to form a very flat package and the grill portion of which can be adjusted in different distances from the fuel tray. The device comprises a frame, two U-shaped double legs and two guide rails which can be folded parallel to the frame. It further comprises a rotisserie bar being capable of being inserted in the guide rails when in the unfolded position and by which the grill portion can be moved upwardly and downwardly with the aid of two chains.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: June 15, 1982
    Inventors: Ellen Dittmer, Lothar Pietryga