IP Library Assignment 022242/0853
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
Patent: 8,176,933 →
Application: 11/829,707 →
Publication: US 2008/0066906
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 →