Patents by Inventor John S. Pionkowski

John S. Pionkowski 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).

  • SCREEN JOINT
    Publication number: 20110240548
    Abstract: A screen joint assembly includes a joint comprising a ring portion and a lip portion protruding from the ring. A first particle screen is connected to a first side of the joint and a second particle screen connected to a second side of the joint. The lip portion may be welded to form a weld seam that interconnects the first and second particle screens.
    Type: Application
    Filed: March 9, 2011
    Publication date: October 6, 2011
    Inventor: John S. Pionkowski