Patent Assignment
Reel/Frame 015215/0017
Assignment of Assignor's Interest
Recorded: 2004-04-13
Pages: 2
Assignor
NQL DRILLING TOOLS, INC.
Executed: 2004-03-24
Assignee
NQL ENERGY SERVICES CANADA LTD.
1507-4TH STREET, NISKU, ALBERTA, T9E 7M9, CANADA
Covered Property
(1)
Hydraulic drilling jar
Patent:
6,263,986 →
Application:
09/538,138 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 11, 2000
From: MASSNER, PERRY; STANG, DARREN L.
To: CANADIAN DOWNHOLE DRILL SYSTEMS, INC.
Reel/Frame 010914/0296 →
Security Agreement
Sep 12, 2003
From: CANADIAN DOWNHOLE DRILL SYSTEMS INC.
To: CANADIAN IMPERIAL BANK OF COMMERCE
Reel/Frame 014506/0446 →
Assignment of Assignor's Interest
Apr 13, 2004
From: CANADIAN DOWNHOLE DRILL SYSTEMS, INC.
To: NQL DRILLING TOOLS, INC.
Reel/Frame 015215/0001 →
Assignment of Assignor's Interest
Jul 23, 2004
From: CANADIAN DOWNHOLE DRILL SYSTEMS INC.
To: NQL ENERGY SERVICES CANADA LTD.
Reel/Frame 014892/0194 →
Assignment of Assignor's Interest
Apr 30, 2008
From: NQL ENERGY SERVICES CANADA LTD.
To: NATIONAL OILWELL VARCO, L.P.
Reel/Frame 020876/0333 →