Patents by Inventor Phillip Strong

Phillip Strong 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).

  • Patent number: 6412574
    Abstract: Apparatus and a method are described for drilling with casing in a borehole in a typically unconsolidated formation, wherein the method involves isolating the annulus between the casing and the borehole section from fluid circulation and creating a hydrostatic pressure in the annulus which is adapted to balance any over-pressurized water in the formation.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: July 2, 2002
    Inventors: Mike Wardley, Phillip Strong