Patent Assignment
Reel/Frame 020655/0390
Change of Name
Recorded: 2008-03-14
Pages: 3
Assignor
HYDRIL GENERAL LLC
Executed: 2007-07-20
Assignee
HYDRIL LLC
3300 NORTH SAM HOUSTON PARKWAY EAST, HOUSTON, TEXAS, 77032-3411
Covered Property
(1)
Revised Cure Cycle for Annular Packing Units
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 14, 2008
From: BUTUC, STEFAN; KHANDOKER, SHAFIQ
To: HYDRIL COMPANY LP
Reel/Frame 020650/0168 →
Merger
Mar 14, 2008
From: HYDRIL COMPANY LP
To: HYDRIL GENERAL LLC
Reel/Frame 020655/0297 →
Merger
Mar 28, 2008
From: HYDRIL COMPANY LP
To: HYDRIL GENERAL LLC
Reel/Frame 020718/0733 →
Change of Name
Mar 28, 2008
From: HYDRIL GENERAL LLC
To: HYDRIL LLC
Reel/Frame 020718/0758 →
Assignment of Assignor's Interest
Jun 5, 2008
From: HYDRIL LLC
To: HYDRIL USA MANUFACTURING LLC
Reel/Frame 021050/0491 →
Assignment of Assignor's Interest
May 4, 2009
From: HYDRIL COMPANY LP
To: HYDRIL USA MANUFACTURING LLC
Reel/Frame 022635/0159 →