Patent Assignment
Reel/Frame 019495/0155
Assignment of Assignor's Interest
Recorded: 2007-06-28
Pages: 3
Assignor
HUFF, PHILIP A
Executed: 2005-09-20
Assignee
HYDRIL COMPANY LP
3300 N. SAM HOUSTON PARKWAY EAST, HOUSTON, TEXAS, 77032
Covered Property
(1)
Method for heat treating thick-walled forgings
Application:
11/239,035 →
Publication:
US 2007/0068607
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Mar 28, 2008
From: HYDRIL COMPANY LP
To: HYDRIL GENERAL LLC
Reel/Frame 020710/0717 →
Change of Name
Mar 28, 2008
From: HDRYIL GENERAL LLC
To: HYDRIL LLC
Reel/Frame 020710/0950 →
Assignment of Assignor's Interest
Jun 5, 2008
From: HYDRIL LLC
To: HYDRIL USA MANUFACTURING LLC
Reel/Frame 021050/0491 →