Assignment of Assignor's Interest

Recorded: 2005-06-02 Pages: 5

Assignor

WEATHERFORD/LAMB, INC.

Executed: 2005-06-02

Assignee

PETROLINE WELLSYSTEMS LIMITED

OFFSHORE TECHNOLOGY PARK, CLAYMORE DRIVE, BRIDGE OF DON, ABERDEEN, AB23 8DG, UNITED KINGDOM

Covered Properties (3)

Expandable Downhole Tubing

Patent: 6,920,935 →

Application: 10/216,521 →

Publication: US 2002/0189818

Apparatus and Methods for Drilling

Patent: 6,968,911 →

Application: 10/822,530 →

Publication: US 2004/0188145

Expandable slotted tubing string and method for connecting such a tubing string

Application: 10/940,485 →

Publication: US 2005/0029812

Related Assignments (1)

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