Patents by Inventor Songfeng Yang

Songfeng Yang 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).

  • Combination whipstock and seal bore diverter system
    Patent number: 7905279
    Abstract: A combination whipstock and seal bore diverter system includes a whipstock; and a diverter configured to receive and support the whipstock in a selected orientation, the system being installable in a single run in a borehole.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: March 15, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Daniel R. Hart, Roy E. Swanson, Kjell Nygardsvoll, Songfeng Yang, Christopher W. Guidry, Charles W. Pleasants
  • COMBINATION WHIPSTOCK AND SEAL BORE DIVERTER SYSTEM
    Publication number: 20090255664
    Abstract: A combination whipstock and seal bore diverter system includes a whipstock; and a diverter configured to receive and support the whipstock in a selected orientation, the system being installable in a single run in a borehole.
    Type: Application
    Filed: April 15, 2008
    Publication date: October 15, 2009
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Daniel R. Hart, Roy E. Swanson, Kjell Nygardsvoll, Songfeng Yang, Christopher W. Guidry, Charles W. Pleasants