Patent Assignment
Reel/Frame 011824/0005
Assignment of Assignor's Interest
Recorded: 2001-05-17
Received: 2001-05-25
Pages: 2
Assignors
HOYER, CAREL W.J.
Executed: 2001-04-27
STEINER, ADRIAN
Executed: 2001-04-27
GRAHAM, ROBERT A.
Executed: 2001-05-01
Assignee
NORTHLAND ENERGY CORPORATION
4600 PETRO-CANADA CENTRE, 150-6TH AVENUE S.W., CALGARY ALBERTA, CAX, T2P 3, CANADA
Covered Property
(1)
Method of Dynamically Controlling Bottom Hole Circulation Pressure in a Wellbore
Application:
09/858,954 →