Patents by Inventor Alan Randall Lucas

Alan Randall Lucas 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).

  • Drill ship
    Patent number: 8256520
    Abstract: Floating systems for well operations are disclosed with a height-adjustable crown assembly movably connected to a derrick; in one aspect, movable within the derrick by movement apparatus; and, in one aspect, movable with a motion compensator. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: September 4, 2012
    Assignee: National Oilwell Varco L.P.
    Inventors: Alan Randall Lucas, Marcus Sherwin McCoo
  • Drill ship
    Publication number: 20100176079
    Abstract: Floating systems for well operations are disclosed with a height-adjustable crown assembly movably connected to a derrick; in one aspect, movable within the derrick by movement apparatus; and, in one aspect, movable with a motion compensator. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Application
    Filed: January 14, 2009
    Publication date: July 15, 2010
    Inventors: Alan Randall Lucas, Marcus Sherwin McCoo
  • Guard for well operations apparatus
    Patent number: D551682
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: September 25, 2007
    Assignee: Varco I/P, Inc.
    Inventor: Alan Randall Lucas
  • Guard for well operations apparatus
    Patent number: D552628
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: October 9, 2007
    Assignee: Varco I/P, Inc.
    Inventor: Alan Randall Lucas