Inventors:
Adams, Thomas Cole (27306 Teepee Trail, Hockley, Texas 77447, US)
Smith, Haynes Bell (1710 Brookside Pine Lane, Kingwood, Texas 77345, US)
Adams, James Newton (12163 Oak Leaf Road, Conroe, Texas 77303, US)
Grichar, Charles Newton (303 Graceland, Houston, Texas 77009, US)
Ward, Kerry Thomas (13527 Post Oak Glen Lane, Cypress, Texas 77429, US)
Burnett, George Alexander (Heath Cottage,Ruthriestone Road, Aberdeen, Aberdeenshire AB10 7JR, GB)
Seyffert, Kenneth Wayne (1019 LaMonte Lane, Houston, Texas 77018, US)
Schulte Jr., David Lee (14426 Brook Oaks Court, Willis, Texas 77378, US)
Mcclung III, Guy Lamont (8002 Hertfordshire Circle, Spring, Texas 77379, US)
Walker, Jeffrey Earl (201 Grandville, Lafayette, LA 70508, US)
Assignee:
Varco I/P, Inc. (10000 Richmond Avenue, Houston TX 77042-4200, US)
Attorney, Agent or Firm:
Lucas, Phillip Brian (Lucas & Co. 135 Westhall Road, Warlingham, Surrey CR6 9HJ, GB)