Assignment of Assignor's Interest

Recorded: 2009-03-17 Pages: 5

Assignors

HALL, DAVID R.

Executed: 2009-03-13

TURNER, PAULA

Executed: 2009-03-13

LUNDGREEN, DAVID

Executed: 2009-02-17

Assignee

NOVADRILL, INC.

2185 SOUTH LARSEN PARKWAY, PROVO, UTAH, 84606

Covered Property (1)

Displaceable Plug in a Tool String Filter

Patent: 8,028,768 →

Application: 12/405,480 →

Publication: US 2010/0236833

Related Assignments (1)

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