Patents by Inventor Martin Stulberg

Martin Stulberg 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).

  • Apparatus and methods of milling a restricted casing shoe
    Patent number: 8146682
    Abstract: A method of removing a restriction in a tubular located in a well includes providing a drilling assembly with a drill bit and a reamer, the reamer having a cutting structure for removing the restriction; drilling through a lower portion of the tubular; expanding the reamer at a location below the restriction; and urging the reamer back toward the restriction to remove the restriction.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: April 3, 2012
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Bill Rhinehart, Thomas M. Redlinger, Thurman B. Carter, Wei Xu, Hubert E. Halford, Martin Stulberg
  • APPARATUS AND METHODS OF MILLING A RESTRICTED CASING SHOE
    Publication number: 20080245532
    Abstract: A method of removing a restriction in a tubular located in a well includes providing a drilling assembly with a drill bit and a reamer, the reamer having a cutting structure for removing the restriction; drilling through a lower portion of the tubular; expanding the reamer at a location below the restriction; and urging the reamer back toward the restriction to remove the restriction.
    Type: Application
    Filed: April 4, 2008
    Publication date: October 9, 2008
    Inventors: Bill Rhinehart, Thomas M. Redlinger, Thurman B. Carter, Wei Xu, Hubert E. Halford, Martin Stulberg
  • Abrasive slurry jetting tool and method
    Patent number: 5765756
    Abstract: A fluid jetting arrangement for fluid jetting a surface including a body (B) to receive jetting nozzle extenders (NE) which in one embodiment comprise a plurality of jetting nozzle extenders having voids there between providing surfaces for controlling the relative extension of the jetting nozzle extenders for moving a jetting nozzle extender having a jetting nozzle (16) with orifice (O) therein to position the jetting nozzle with the orifice (O) to fluid jet a surface and another embodiment wherein the jetting nozzle extender (NE) is integrally formed and positioned in the body (B) to fluid jet a surface.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: June 16, 1998
    Assignee: TIW Corporation
    Inventors: Gary D. Jordan, Martin A. Stulberg, Britt O. Braddick