Patent Assignment
Reel/Frame 031447/0693
Change of Name
Recorded: 2013-10-21
Pages: 4
Assignor
NORSK HYDRO A.S.
Executed: 1996-01-01
Assignee
NORSK HYDRO ASA
DRAMMENSVEIEN 264, OSLO, 0283, NORWAY
Covered Properties
(4)
Procedure and Production Pipe for Production of Oil or Gas from an Oil or Gas Reservoir
Patent:
5,435,393 →
Application:
08/120,788 →
Apparatus for Offshore Swivel Replacement
Patent:
5,482,484 →
Application:
08/137,204 →
Drive System for Turning a Swivel
Patent:
5,419,398 →
Application:
08/204,290 →
Method and Apparatus for Performing Measurements While Drilling for Oil and Gas
Patent:
5,585,556 →
Application:
08/567,426 →
Related Assignments
(2)
Other recorded transfers of the patents in this record — the chain of ownership.