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Reel/Frame:034857/0635   Pages: 14
Recorded: 01/30/2015
Attorney Dkt #:074378.000028
Conveyance: SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 27
1
Patent #:
5396958
Issue Dt:
03/14/1995
Application #:
08224901
Filing Dt:
04/08/1994
Title:
WELL TREATING COMPOSITION AND METHOD OF USE
2
Patent #:
5936059
Issue Dt:
08/10/1999
Application #:
08919943
Filing Dt:
08/29/1997
Title:
EPOXY CORROSION INHIBITION SYSTEMS INCLUDING ETHOXYLATED CURING AGENTS
3
Patent #:
5945164
Issue Dt:
08/31/1999
Application #:
09020532
Filing Dt:
02/09/1998
Title:
EPOXY CORROSION INHIBITION SYSTEMS INCLUDING ETHOXYLATED CURING AGENTS
4
Patent #:
6135207
Issue Dt:
10/24/2000
Application #:
09140494
Filing Dt:
08/27/1998
Title:
WELL TREATMENT PELLETS
5
Patent #:
6213214
Issue Dt:
04/10/2001
Application #:
09253111
Filing Dt:
02/19/1999
Title:
PIPELINE TREATMENT COMPOSITES
6
Patent #:
6206103
Issue Dt:
03/27/2001
Application #:
09363615
Filing Dt:
07/29/1999
Title:
PIPLEINE TREATMENT COMPOSITES
7
Patent #:
6582624
Issue Dt:
06/24/2003
Application #:
09776595
Filing Dt:
02/01/2001
Publication #:
US20020139717
Pub Dt:
10/03/2002
Title:
METHOD AND COMPOSITION FOR REMOVING SULFIDES FROM HYDROCARBON STREAMS
8
Patent #:
6720291
Issue Dt:
04/13/2004
Application #:
09935808
Filing Dt:
08/23/2001
Publication #:
US20030041778
Pub Dt:
03/06/2003
Title:
WELL TREATMENT COMPOSITION FOR USE IN IRON-RICH ENVIRONMENTS
9
Patent #:
7115215
Issue Dt:
10/03/2006
Application #:
10411654
Filing Dt:
04/09/2003
Publication #:
US20030234383
Pub Dt:
12/25/2003
Title:
METHOD AND COMPOSITION FOR REMOVING SULFIDES FROM HYDROCARBON STREAMS
10
Patent #:
7407687
Issue Dt:
08/05/2008
Application #:
11330510
Filing Dt:
01/12/2006
Publication #:
US20070160755
Pub Dt:
07/12/2007
Title:
METHOD OF SEQUENTIALLY FORMING ANTI-CORROSIVE COATINGS
11
Patent #:
7705099
Issue Dt:
04/27/2010
Application #:
11729775
Filing Dt:
03/30/2007
Publication #:
US20070244013
Pub Dt:
10/18/2007
Title:
DRILLING FLUID AND METHOD FOR REDUCING LOST CIRCULATION
12
Patent #:
7989399
Issue Dt:
08/02/2011
Application #:
12025164
Filing Dt:
02/04/2008
Publication #:
US20080217064
Pub Dt:
09/11/2008
Title:
DRILLING FLUID AND METHODS
13
Patent #:
8387723
Issue Dt:
03/05/2013
Application #:
12529583
Filing Dt:
12/22/2009
Publication #:
US20100089650
Pub Dt:
04/15/2010
Title:
DRILLING FLUID AND METHOD FOR DRILLING IN COAL-CONTAINING FORMATIONS
14
Patent #:
7723273
Issue Dt:
05/25/2010
Application #:
12646749
Filing Dt:
12/23/2009
Title:
MODIFIED EPOXY-AMINE COMPOSITIONS FOR OIL FIELD USES
15
Patent #:
8607895
Issue Dt:
12/17/2013
Application #:
12667952
Filing Dt:
01/06/2010
Publication #:
US20100193244
Pub Dt:
08/05/2010
Title:
DRILLING FLUID ADDITIVE FOR REDUCING LOST CIRCULATION IN A DRILLING OPERATION
16
Patent #:
8235119
Issue Dt:
08/07/2012
Application #:
12767401
Filing Dt:
04/26/2010
Publication #:
US20110000673
Pub Dt:
01/06/2011
Title:
DRILLING FLUID AND METHOD FOR REDUCING LOST CIRCULATION
17
Patent #:
7811974
Issue Dt:
10/12/2010
Application #:
12774290
Filing Dt:
05/05/2010
Title:
MODIFIED EPOXY-AMINE COMPOSITIONS FOR OIL FIELD USES
18
Patent #:
NONE
Issue Dt:
Application #:
13113645
Filing Dt:
05/23/2011
Publication #:
US20110224108
Pub Dt:
09/15/2011
Title:
WATER-BASED POLYMER DRILLING FLUID AND METHOD OF USE
19
Patent #:
8703658
Issue Dt:
04/22/2014
Application #:
13171273
Filing Dt:
06/28/2011
Publication #:
US20110306524
Pub Dt:
12/15/2011
Title:
DRILLING FLUID AND METHODS
20
Patent #:
8338340
Issue Dt:
12/25/2012
Application #:
13193170
Filing Dt:
07/28/2011
Publication #:
US20110281777
Pub Dt:
11/17/2011
Title:
DRILLING FLUID AND METHODS
21
Patent #:
8241491
Issue Dt:
08/14/2012
Application #:
13251224
Filing Dt:
10/01/2011
Title:
METHOD OF REMOVING ARSENIC FROM HYDROCARBONS
22
Patent #:
8211294
Issue Dt:
07/03/2012
Application #:
13425581
Filing Dt:
03/21/2012
Title:
METHOD OF REMOVING ARSENIC FROM HYDROCARBONS
23
Patent #:
9670394
Issue Dt:
06/06/2017
Application #:
13739980
Filing Dt:
01/11/2013
Publication #:
US20130126243
Pub Dt:
05/23/2013
Title:
DRILLING FLUID AND METHOD FOR DRILLING A WELLBORE
24
Patent #:
10738229
Issue Dt:
08/11/2020
Application #:
13776914
Filing Dt:
02/26/2013
Publication #:
US20130225457
Pub Dt:
08/29/2013
Title:
DRILLING FLUID AND METHOD FOR DRILLING IN COAL-CONTAINING FORMATIONS
25
Patent #:
9850416
Issue Dt:
12/26/2017
Application #:
13817635
Filing Dt:
05/02/2013
Publication #:
US20130206479
Pub Dt:
08/15/2013
Title:
DRILLING FLUID AND METHOD FOR DRILLING IN COAL-CONTAINING FORMATIONS
26
Patent #:
NONE
Issue Dt:
Application #:
14057981
Filing Dt:
10/18/2013
Publication #:
US20140041944
Pub Dt:
02/13/2014
Title:
WATER-BASED POLYMER DRILLING FLUID AND METHOD OF USE
27
Patent #:
NONE
Issue Dt:
Application #:
14244365
Filing Dt:
04/03/2014
Publication #:
US20140213489
Pub Dt:
07/31/2014
Title:
DRILLING FLUID AND METHODS
Assignor
1
CANADIAN ENERGY SERVICES L.P.
Exec Dt:
12/02/2014
Assignee
1
THE BANK OF NOVA SCOTIA
720 KING STREET WEST
TORONTO, CANADA M5B2T3
Correspondence name and address
CONSTANCE GALL RHEBERGEN
P.O. BOX 61389
HOUSTON, TX 77208-1389

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