Patent Assignment
Reel/Frame 020193/0366
Assignment of Assignor's Interest
Recorded: 2007-11-21
Pages: 2
Assignor
LUO, YUEJIN
Executed: 2006-06-01
Assignee
BP EXPLORATION OPERATING COPMANY LIMITED
CHERTSEY ROAD, SUN-ON-THAMES, MIDDLESEX, TW16 7BP, GREAT BRITAIN
Covered Property
(1)
Apparatus and Method for Driving Casing or Conductor Pipe