Patents by Inventor John R. Plugge

John R. Plugge 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).

  • Anode pod system for offshore structures and method of installation
    Patent number: 4609307
    Abstract: An anode pod system for cathodically protecting offshore structures and method of installing the system in which a set of anode pod units are individually placed on the ocean floor adjacent an offshore structure. Each anode pod unit comprises a plurality of anodes attached to a top tubular ring and a base tubular ring larger than the top tubular ring to form a conically-shaped unit. An electrical conductor cable connects each anode pod unit to the offshore structure.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: September 2, 1986
    Assignee: Exxon Production Research Co.
    Inventors: Arthur L. Guy, John R. Plugge