Patents by Inventor David Joseph Brunnert

David Joseph Brunnert 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).

  • Mills for wellbore operations
    Patent number: 6170576
    Abstract: A wellbore mill has been invented that, in certain aspects, has a body having a top and a bottom and, optionally, a fluid flow channel extending therethrough from top to bottom with, optionally, one or more fluid jetting ports in fluid communication with the fluid flow channel, milling apparatus on the body including a plurality of milling inserts, each insert mechanically secured in a corresponding recess in the body, said mechanical securement sufficient for effective milling in a wellbore. A wellbore milling method for milling an opening in a selected tubular of a tubular string in a wellbore has been invented that includes installing and using such a mill.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: January 9, 2001
    Assignee: Weatherford/Lamb, Inc.
    Inventors: David Joseph Brunnert, Shane Paul Hart, Thomas F Bailey, Michael W. Henson, David M Haugen, Thurman B Carter, Guy LaMonte McClung, III