Patent Assignment
Reel/Frame 022242/0853
Corrective Assignment to Correct the Second Assignor's Execution Date. Document Previously Recorded at Reel 022133 Frame 0909.
Recorded: 2009-01-21
Pages: 5
Assignors
HUFF, PHILIP A.
Executed: 2007-11-19
KHANDOKER, SHAFIQ
Executed: 2007-11-19
BUTUC, STEFAN
Executed: 2007-11-19
Assignee
HYDRIL COMPANY LP
3300 NORTH SAM HOUSTON, PARKWAY EAST, HOUSTON, TEXAS, 77032
Covered Property
(1)
Annular Bop Packing Unit
Related Assignments
(6)
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 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
Jan 21, 2009
From: HUFF, PHILIP A.; KHANDOKER, SHAFIQ; BUTUC, STEFAN
To: HYDRIL COMPANY LP
Reel/Frame 022133/0909 →
Assignment of Assignor's Interest
May 4, 2009
From: HYDRIL COMPANY LP
To: HYDRIL USA MANUFACTURING LLC
Reel/Frame 022635/0159 →
Change of Name
Sep 27, 2021
From: HYDRIL USA MANUFACTURING LLC
To: HYDRIL USA DISTRIBUTION LLC
Reel/Frame 057608/0915 →