Patents by Inventor James M. Youngblood

James M. Youngblood 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).

  • Publication number: 20040238185
    Abstract: A running tool that delivers an object selectively to one of a plurality of landing nipples and then releases from the object is disclosed. The tool is actuated by raising it after it has passed the desired landing nipple to release a locating dog. The locating dog places locking dogs on the object even with a groove on the landing nipple. Movement of the tool downhole secures the locking relationship and releases the running tool from the object. A sheer pin allows testing at the surface that the object is locked in place, prior to removal of the running tool. The object comprises a fishing neck to allow it to be subsequently retrieved.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Inventors: David E. Rothers, John M. Cobb, Alfredo Gomez, Samir M. Nazir, Elias Pena, James M. Youngblood, Brian A. Roth