Patent Assignment
Reel/Frame 021308/0166
Assignment of Assignor's Interest
Recorded: 2008-07-29
Pages: 4
Assignor
KYLLINGSTAD, AGE
Executed: 2007-01-02
Assignee
NATIONAL OILWELL NORWAY AS
P.O. BOX 8181, STAVANGER, N-4069, NORWAY
Covered Property
(1)
Method of Filtering Pump Noise
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jan 9, 2015
From: NATIONAL OILWELL NORWAY AS
To: NATIONAL OILWELL VARCO NORWAY AS
Reel/Frame 034746/0374 →
Assignment of Assignor's Interest
Jun 2, 2023
From: NATIONAL OILWELL VARCO NORWAY AS
To: NOV INTERNATIONAL HOLDINGS C.V.
Reel/Frame 064367/0415 →
Assignment of Assignor's Interest
Jun 7, 2023
From: NOV INTERNATIONAL HOLDINGS C.V.
To: GRANT PRIDECO, INC.
Reel/Frame 063888/0818 →