Patent Assignment
Reel/Frame 022048/0698
Assignment of Assignor's Interest
Recorded: 2009-01-02
Pages: 6
Assignor
MUD KING DRILLING FLUIDS (2008) LTD.
Executed: 2008-12-05
Assignee
CCS CORPORATION
2400, 530 - 8TH AVENUE S.W., CALGARY, ALBERTA, T2P 3S8, CANADA
Covered Property
(1)
Water-Based Polymer Drilling Fluid and Method of Use
Application:
12/090,016 →
Publication:
US 2008/0214413
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 11, 2008
From: EWANEK, JOHN
To: MUD KING DRILLING FLUIDS (2001) LTD.
Reel/Frame 020791/0127 →
Notice of Grant of Security Interest in Patents
May 7, 2009
From: CCS CORPORATION
To: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
Reel/Frame 022645/0715 →
Change of Name
Apr 2, 2012
From: CCS CORPORATION
To: TERVITA CORPORATION
Reel/Frame 027975/0618 →
Grant of Security Interest in Patents
Feb 14, 2013
From: TERVITA CORPORATION
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
Reel/Frame 029817/0826 →
Assignment of Assignor's Interest
Jan 16, 2014
From: TERVITA CORPORATION
To: CANADIAN ENERGY SERVICES L.P.
Reel/Frame 031987/0835 →