Assignment of Assignor's Interest

Recorded: 1998-09-09 Pages: 5

Assignors

MASSINON, ROLAND

Executed: 1998-08-24

HILL, DAVID A.

Executed: 1998-06-26

ALDRIDGE, COLIN A.

Executed: 1998-06-26

Assignee

IPEC LTD.

7TH FLOOR, 300 - 5TH AVENUE S.W., CALGARY, ALBERTA, T2P 3, CANADA

Covered Property (1)

Downhole Fluid Disposl Tool and Method

Patent: 6,085,837 →

Application: 09/056,697 →

Related Assignments (2)

Other recorded transfers of the patent in this record — the chain of ownership.