Patents by Inventor Stephen M. Croghan

Stephen M. Croghan 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 restricting pipe motion
    Patent number: 4244663
    Abstract: An apparatus for restricting the lateral motion of a pipe column extending upward from the bottom of a body of water to a point above the surface of the water. The apparatus finds its preferred use as a drive pipe stabilizer for a cantilever-type offshore drilling barge or the like.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: January 13, 1981
    Assignee: Marathon Manufacturing Company
    Inventor: Stephen M. Croghan