Patents by Inventor George A. Hogg

George A. Hogg 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).

  • Apparatus for cleaning pipes
    Patent number: 4688290
    Abstract: Apparatus for cleaning an underwater structure such as a pipe, riser or the like, having a collar which fits around the structure and scrapers extending inwardly of the collar to engage the structure. The apparatus can be pulled along the structure by a winch and the scrapers dislodge detritus and marine growth as they move.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: August 25, 1987
    Assignee: Sonat Subsea Services (UK) Limited
    Inventor: George A. Hogg