Patents by Inventor Daniel P. Brietzke

Daniel P. Brietzke 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).

  • SELECTIVE DEPLOYMENT OF UNDERREAMERS AND STABILIZERS
    Publication number: 20140102797
    Abstract: A downhole tool for increasing a cross-sectional area of a wellbore is provided. The downhole tool may include a first drilling assembly including a first reaming tool for selectively increasing the cross-sectional area of the wellbore. A first ball seat may receive a first ball. At least one of the first ball seat and the first ball may deform to allow the first ball to pass through the first ball seat when a predetermined pressure is applied thereto. A first piston may be coupled to the first ball seat. The first ball seat and the first piston may stroke when the first ball is received within the first ball seat, thereby actuating the first reaming tool between an active state and an inactive state.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Applicant: Smith International, Inc.
    Inventors: Manoj D. Mahajan, Charles H. Dewey, Sameer P. Bhoite, Daniel P. Brietzke