Patents by Inventor Willam E. Brennan, III

Willam E. Brennan, III 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).

  • ACTIVE MUD VALVE SYSTEM
    Publication number: 20090260798
    Abstract: A downhole tool pumping apparatus comprising a body and an active valve block. The body comprises a cavity housing a reciprocating piston defining first and second chambers within the cavity. The active valve block comprises a plurality of active valves, wherein the plurality of active valves includes a first active valve fluidly connected to the first chamber of the body, the plurality of active valves includes a second active valve fluidly connected to the second chamber of the body, and each of the plurality of active valves is configured to be actively actuated between open and closed positions.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 22, 2009
    Inventors: Willam E. Brennan, III, Bill Grant, Mark Milkovisch