Patents by Inventor Rodney Leeb

Rodney Leeb 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).

  • Reverse circulating control valve
    Patent number: 6296059
    Abstract: A circulation control valve includes a top sub having a bore, a body connected to the top sub and having a first fluid passageway and a second fluid passageway parallel to the first fluid passageway, the bore communicating with both the first fluid passageway and second fluid passageway, a one-way valve in the second fluid passageway, and a first activatable block for the first fluid passageway. Upon upon activation of the block, fluid in the first fluid passageway is blocked and only flows through the second fluid passageway.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: October 2, 2001
    Inventors: Rodney Leeb, Gerald Leeb