Patents by Inventor Peter John Baker

Peter John Baker 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).

  • Casing shoe
    Patent number: 7066253
    Abstract: A shoe for guiding a string within a well-bore comprises an annular body of relatively hard material and a nose portion of relatively soft material which are interlocked so that when the nose portion is drilled through, any remaining parts are held against the annular body. Interlocking is achieved by a dovetail thread. Embodiments are described for the shoe as a reamer shoe and as a drill bit to run in casing.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: June 27, 2006
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Peter John Baker
  • Downhole tool
    Publication number: 20040040704
    Abstract: A shoe (10) for guiding a string within a well-bore is described. The shoe comprises an annular body (12) of relatively hard material and a nose portion (16) of relatively soft material which are interlocked so that when the nose portion is drilled through, any remaining parts are held against the annular body. Interlocking is achieved by a dovetail thread (30). Embodiments are described for the shoe as a reamer shoe and as a drill bit to run in casing.
    Type: Application
    Filed: May 30, 2003
    Publication date: March 4, 2004
    Inventor: Peter John Baker