IP Library Assignment 028200/0357
Patent Assignment
Reel/Frame 028200/0357

Assignment of Assignor's Interest

Recorded: 2012-05-14 Pages: 2
Assignors
VON DER OHE, CHRISTIAN B.
Executed: 2009-09-30
ANKARGREN, DAVID BENGT JOHAN
Executed: 2009-09-30
Assignee
NATIONAL OILWELL NORWAY AS
SERVICEBOKS 401, KRISTIANSAND S, N-4604, NORWAY
Covered Property (1)
Riser Tensioner
Patent: 9,051,784 →
Application: 13/496,195 →
Publication: US 2012/0217016
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 →