Assignment of Assignor's Interest

Recorded: 2009-03-23 Received: 2009-03-23 Pages: 6

Assignors

WILLIAMSON, PETER

Executed: 2009-03-11

GUSTAFSON, ERIC J.

Executed: 2009-03-13

BUTTERFIELD, WILLIAM S.

Executed: 2009-03-16

Assignee

STOWE WOODWARD, L.L.C.

8207 VALLEY PIKE, MIDDLETOWN, VA, 22645, UNITED STATES

Covered Property (1)

Downwell System with Differentially Swellable Packer

Application: 12/366,756 →