Patents by Inventor John G. Steidtman

John G. Steidtman 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).

  • Publication number: 20120124989
    Abstract: A hydraulic power unit is disclosed that is selectively connectable to a hydraulic tool. The hydraulic power unit automatically detects the attached or detached state of the tool and/or operates an unloading valve during activation of the tool.
    Type: Application
    Filed: November 24, 2010
    Publication date: May 24, 2012
    Inventors: Robert A. Doll, John G. Steidtman, William R. Reuter, III