Patents by Inventor Matthew J. Primrose

Matthew J. Primrose 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).

  • Sandjet rotating nozzle
    Patent number: 4601612
    Abstract: A method of filling voids underneath the lower surface of a structure placed upon the ocean floor, using a sandjet stinger conduit inserted through the structure to carry a water and sand suspension to the base of the structure.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: July 22, 1986
    Assignee: Shell Oil Company
    Inventor: Matthew J. Primrose