IP Library › Assignment 016107/0496
Patent Assignment
Reel/Frame 016107/0496

Assignment of Assignor's Interest

Recorded: 2004-12-28 Pages: 3
Assignor
SIVLEY, IV, ROBERT S.
Executed: 2004-12-09
Assignee
HYDRIL COMPANY
3300 NORTH SAM HOUSTON PARKWAY EAST, HOUSTON, TEXAS, 77032
Covered Property (1)
Expansion Pig
Patent: 7,191,841 →
Application: 10/958,979 →
Publication: US 2006/0070742
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Corrective Assignment to Correct the Receiving Party Name, Previously Recorded at Reel 016107, Frame 0496. Jul 1, 2005
From: SIVLEY, IV, ROBERT S.
To: HYDRIL COMPANY L.P.
Reel/Frame 016754/0773 →
Merger Jan 7, 2011
From: HYDRIL COMPANY LP
To: HYDRIL COMPANY
Reel/Frame 025600/0059 →