Patent Assignment
Reel/Frame 006848/0674
Assignment of Assignor's Interest
Recorded: 1994-01-13
Pages: 3
Assignor
WILSON, GERALD E.
Executed: 1994-01-13
Assignee
PRIDECO, INC.
6545 N. ELDRIDGE PKWY., HOUSTON, TEXAS, 77041
Covered Property
(1)
Stress Relief Groove for Drill Pipe
Patent:
5,358,285 →
Application:
08/182,211 →
Related Assignments
(8)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 21, 1995
From: PRIDECO, INC.
To: GRANT TFW, INC.
Reel/Frame 007558/0312 →
Change of Name
Jan 8, 2001
From: GRANT TFW, INC.
To: GRANT PRIDECO, INC.
Reel/Frame 011436/0249 →
Assignment of Assignor's Interest
Jan 17, 2001
From: GRANT PRIDECO, INC.
To: GRANT PRIDECO, L.P.
Reel/Frame 011449/0400 →
Grant of Patent
Jan 3, 2003
From: GRANT PRIDECO, L.P.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS
Reel/Frame 013333/0021 →
Release of Grant of Patent Security Agreement
Jun 1, 2005
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: GRANT PRIDECO, L.P.
Reel/Frame 016079/0694 →
Security Agreement
Jun 3, 2005
From: GRANT PRIDECO, L.P.
To: WELLS FARGO BANK
Reel/Frame 016087/0629 →
Release of Patent Security Agreement
Sep 18, 2006
From: WELLS FARGO BANK
To: GRANT PRIDECO, L.P.
Reel/Frame 018268/0796 →
Release of Patent Security Agreement
Sep 18, 2006
From: WELLS FARGO BANK
To: GRANT PRIDECO, L.P.
Reel/Frame 018279/0119 →