Assignment of Assignor's Interest

Recorded: 2011-09-21 Pages: 4

Assignor

LEE, PAUL BERNARD

Executed: 2011-05-15

Assignee

HAUPTSTR. 2, 2630 TERNITZ, AUSTRIA

Covered Properties (6)

Downhole Valve for Oil/Gas Well

Patent: 5,499,687 →

Application: 07/839,015 →

Tubular Actuator Component for Use in a Drill String

Patent: 6,041,874 →

Application: 08/945,863 →

Activating Ball Assembly for Use with a by-Pass Tool in a Drill String

Patent: 6,923,255 →

Application: 10/344,732 →

Publication: US 2004/0011566

Ball Operated by-Pass Tool for Use in Drillstring

Patent: 7,347,288 →

Application: 10/526,892 →

Publication: US 2006/0113115

Dart-Operated Big Bore by-Pass Valve

Patent: 7,347,289 →

Application: 10/527,969 →

Publication: US 2006/0108152

Activating Mechanism for Controlling the Operation of a Downhole Tool

Patent: 7,866,397 →

Application: 11/917,621 →

Publication: US 2009/0084555

Related Assignments (1)

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