Patents by Inventor Daniel Brietzke

Daniel 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).

  • Drill Bit and Cutting Inserts For Hard/Abrasive Formations
    Publication number: 20060260846
    Abstract: A rolling cone drill bit comprises a plurality of bottomhole cutter elements positioned in a first circumferential row, wherein at least one of the cutter elements comprises a cutting portion extending from a base portion to a point furthermost from the base portion, defining an extension height. The ratio of the cross-sectional area of the cutter element at a point equal to ninety-four percent of the extension height to the cross-sectional area of the cutter element base is greater than 0.2. Moreover, the ratio of the extension height to the base diameter is not greater than 0.75.
    Type: Application
    Filed: May 16, 2006
    Publication date: November 23, 2006
    Applicant: Smith International, Inc.
    Inventors: Gary Portwood, Peter Wilson, Luca Tedeschi, Bryce Baker, Daniel Brietzke