Patents by Inventor Thad Andrews

Thad Andrews 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).

  • Electric wireline insert safety valve
    Patent number: 7967074
    Abstract: Methods and devices for utilizing an electrically-actuated wireline insert safety valve (WLSV) within a wellbore. Power is delivered to an electrically actuated WLSV to actuate the WLSV via inductive charging and without the use of wired contact.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: June 28, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Gary B. Lake, Richard Patterson, Thad Andrews
  • Electric Wireline Insert Safety Valve
    Publication number: 20100025045
    Abstract: Methods and devices for utilizing an electrically-actuated wireline insert safety valve (WLSV) and for delivering power to an electrically actuated WLSV via inductive charging and without the use of wired contact.
    Type: Application
    Filed: July 29, 2008
    Publication date: February 4, 2010
    Applicant: Baker Hughes Incorporated
    Inventors: Gary B. Lake, Richard Patterson, Thad Andrews