Patents by Inventor David R. Hale

David R. Hale 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).

  • Mobile offshore structure for arctic exploratory drilling
    Patent number: 4512684
    Abstract: An offshore exploratory drilling floatable structure ballastable to rest on a sea floor but to extend above water level when so supported and adapted to withstand arctic ice loads, comprising a substantially vertical wall capable of withstanding arctic ice loads; a structural load bearing bottom rigidly connected to a lower portion of the wall; and a floatable vertically displaceable load bearing structural deck inside the wall.
    Type: Grant
    Filed: June 13, 1983
    Date of Patent: April 23, 1985
    Assignee: CBI Offshore, Inc.
    Inventors: David R. Hale, William A. Owen, James A. Orndorff, Jr.