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Patent Assignment Assignee Details
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Assignee Name : PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Total Assignments: 28
Assignment: 1
Reel/Frame:013315/0076   Pages: 12
Recorded: 09/08/2002
Conveyance: CERTIFICATE AMENDMENT
Assignor
1
COMPUTALOG LTD.
Exec Dt:
12/31/2001
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150-6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6412614
NONE
09399093
Correspondence name and address
BENNETT JONES LLP
ROSEANN B. CALDWELL
855-2ND STREET SW
4500, BANKERS HALL EAST
CALGARY, AB T2P 4K7
Assignment: 2
Reel/Frame:019628/0765   Pages: 3
Recorded: 08/02/2007
Attorney Dkt #:EDI4550
Conveyance: CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor
1
COMPUTALOG LTD.
Exec Dt:
12/31/2001
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVE. SW
CALGARY, CANADA T2P3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4813497
NONE
07181648
Correspondence name and address
CRYSTAL N. TAYLOR
515 POST OAK BLVD.
SUITE 600
HOUSTON, TX 77027
Assignment: 3
Reel/Frame:013854/0178   Pages: 5
Recorded: 03/13/2003
Conveyance: AMALGAMATION
Assignor
1
COMPUTALOG LTD.
Exec Dt:
01/01/2002
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
#4200, 1500-6TH AVENUE SW
CALGARY, AB, CANADA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6571888
US20020166701
09853686
Correspondence name and address
GOODWIN MCKAY
SEAN W. GOODWIN
SUITE 360, 237-8TH AVENUE SW
CALGARY, AB, CANADA T2G 5C3
Assignment: 4
Reel/Frame:013862/0731   Pages: 12
Recorded: 10/29/2002
Conveyance: CERTIFICATE OF AMALGAMATION
Assignor
1
3983943 CANADA INC.
Exec Dt:
01/01/2002
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVENUE SW
CALGARY, CANADA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6412614
NONE
09399093
Correspondence name and address
BENNETT JONES LLP
ROSEANN B. CALDWELL
4500, BANKERS HALL EAST
855 - 2ND STREET SW
CALGARY, AB T2P 4K7
Assignment: 5
Reel/Frame:012842/0121   Pages: 3
Recorded: 01/19/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
THOMPSON, LARRY W.
Exec Dt:
01/10/2002
2
WISLER, MACMILLAN M.
Exec Dt:
01/10/2002
3
WU, JIAN-QUN
Exec Dt:
01/10/2002
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150-6TH AVENUE SW
CALGARY, ALBERTA T2P 3
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6646441
US20030137301
10053043
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TEXAS 77060
Assignment: 6
Reel/Frame:012731/0405   Pages: 2
Recorded: 03/19/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
COMPUTALOG LTD.
Exec Dt:
02/07/2002
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150-6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7, ALBERTA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6566649
NONE
09579971
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY E.
STE. 1700
HOUSTON, TX 77060
Assignment: 7
Reel/Frame:012732/0814   Pages: 2
Recorded: 03/19/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
COMPUTALOG LTD
Exec Dt:
02/07/2002
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200 150 -6TH AVENUE SW
CALGARY T2P 3Y7, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6590202
US20020008197
09851635
Correspondence name and address
PATRICK H.MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TEXAS 77060
Assignment: 8
Reel/Frame:012759/0393   Pages: 3
Recorded: 03/28/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
MICKAEL, MEDHAT W.
Exec Dt:
03/28/2002
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVENUE SW
CALGARY, ALBERTA T2P 3
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6700115
US20020190198
10112308
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TX 77060
Assignment: 9
Reel/Frame:013308/0366   Pages: 3
Recorded: 09/16/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GONSOULIN, BRYAN
Exec Dt:
09/10/2002
2
LEASE, TERRY
Exec Dt:
09/10/2002
3
POPE, ALANNA
Exec Dt:
09/10/2002
4
THOMPSON, LARRY
Exec Dt:
09/10/2002
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20040051650
10244571
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TX 77060
Assignment: 10
Reel/Frame:013383/0664   Pages: 3
Recorded: 10/08/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
MICKAEL, MEDHAT
Exec Dt:
09/12/2002
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6927390
US20040065823
10267944
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TX 77060
Assignment: 11
Reel/Frame:014108/0759   Pages: 4
Recorded: 06/02/2003
Conveyance: CERTIFICATE OF AMALGAMATION
Assignor
1
NORTHLAND ENERGY CORPORATION
Exec Dt:
12/13/2002
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
400C, 9705 HORTON ROAD S.W.
CALGARY, ALBERTA, CALIFORNIA T2V 2X5
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5415776
NONE
08236443
Correspondence name and address
SHERIDAN ROSS P.C.
JOSEPH E. KOVARIK
1560 BROADWAY
STE. 1200
DENVER, CO 80202-5141
Assignment: 12
Reel/Frame:014556/0675   Pages: 3
Recorded: 04/30/2004
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
NORTHLAND ENERGY CORPORATION
Exec Dt:
12/13/2002
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
150-6TH AVE. SW
SUITE 4200
CALGARY, CANADA T2P 3Y7
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
6554016
US20020070014
09735385
 
6749172
US20030193035
10423105
Correspondence name and address
MARK A OATHOUT
3701 KIRBY DRIVE, SUITE 960
HOUSTON, TX 77098
Assignment: 13
Reel/Frame:014083/0261   Pages: 3
Recorded: 05/21/2003
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
NORTHLAND ENERGY CORPORATION
Exec Dt:
01/01/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
150 6TH AVENUE S.W. 4200
CALGARY, ALBERTA, CANADA T2P3Y7
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
5663121
NONE
08362761
 
6029367
NONE
09052534
 
6032747
NONE
09095118
Correspondence name and address
YOUNG & BASILE, P.C.
ANDREW R. BASILE
3001 WEST BIG BEAVER ROAD, SUITE 624
TROY, MI 48084-3107
Assignment: 14
Reel/Frame:014475/0181   Pages: 4
Recorded: 06/23/2003
Conveyance: (AMALGAMATION)
Assignor
1
NORTHLAND ENERGY CORPORATION
Exec Dt:
01/01/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200 PETRO-CANADA CENTRE, 150-6TH AVENUE S.W.
CALGARY, ALBERTA, CANADA TP3Y7
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
5900137
NONE
08671422
 
5775442
NONE
08741201
 
5928519
NONE
08963471
 
6315813
NONE
09442450
 
6413297
NONE
09626857
 
6607042
US20020170749
09858954
 
6477721
US20020042949
09983641
 
6722436
US20030141113
10054849
 
6790367
US20040020860
10284173
Correspondence name and address
MEREK, BLACKMON & VOORHEES
JAMES J. MEREK
673 SOUTH WASHINGTON STREET
ALEXANDRIA, VA 22314
Assignment: 15
Reel/Frame:014588/0769   Pages: 3
Recorded: 05/04/2004
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
POLAR COMPLETIONS ENGINEERING INC.
Exec Dt:
01/01/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150-6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6220348
NONE
09175595
Correspondence name and address
GOODWIN MCKAY
SEAN W. GOODWIN
SUITE 360, 237-8TH AVENUE S.E.
CALGARY, ALBERTA, CANADA
T2G 5C3
Assignment: 16
Reel/Frame:014588/0772   Pages: 3
Recorded: 05/04/2004
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
POLAR COMPLETIONS ENGINEERING INC.
Exec Dt:
01/01/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150-6TH AVENUE SW
CALGARY, AB, T2P 3Y7, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6244642
NONE
09618934
Correspondence name and address
GOODWIN MCKAY
SEAN W. GOODWIN
SUITE 360, 237 -8TH AVENUE S.E.
CALGARY, AB, T2G 5C3 CANADA
Assignment: 17
Reel/Frame:013744/0531   Pages: 2
Recorded: 02/04/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
COMPUTALOG U.S.A, INC.
Exec Dt:
01/10/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6666285
US20030155121
10078199
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TX 77060
Assignment: 18
Reel/Frame:014231/0427   Pages: 4
Recorded: 02/04/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
WU, JIAN-QUN
Exec Dt:
01/23/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150-6TH AVENUE S.W.
CALGARY ALBERTA, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6966211
US20040149004
10359372
Correspondence name and address
PATRICK H. MCCOLLUM
363 NORTH SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TX 77060
Assignment: 19
Reel/Frame:014197/0588   Pages: 3
Recorded: 06/20/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CRAM, BRUCE A.
Exec Dt:
05/01/2003
2
SERAFIN, VITOLD P.
Exec Dt:
05/01/2003
3
TATE, BARRY J.
Exec Dt:
05/01/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
#4200, 1500-6TH AVENUE SW
CALGARY, AB, CANADA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20040194954
10404450
Correspondence name and address
GOODWIN MCKAY
SEAN W. GOODWIN
SUITE 360, 237-8TH AVENUE SW CANADA
CALGARY, AB CANADA T2G 5C3
Assignment: 20
Reel/Frame:014157/0819   Pages: 2
Recorded: 06/11/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CRAM, BRUCE A.
Exec Dt:
05/02/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
#4200, 1500-6TH AVENUE SW
CALGARY, AB, CANADA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20040221984
10429837
Correspondence name and address
GOODWIN MCKAY
SEAN W. GOODWIN
SUITE 360
237-8TH AVENUE SW
CALGARY, AB, CANADA T2G 5C3
Assignment: 21
Reel/Frame:014292/0151   Pages: 3
Recorded: 07/09/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SORRELLS, MARTIN
Exec Dt:
06/23/2003
2
MINTO, JAMES
Exec Dt:
06/23/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7046584
US20050007887
10618282
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TX 77060
Assignment: 22
Reel/Frame:014292/0635   Pages: 5
Recorded: 07/09/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MINTO, JAMES
Exec Dt:
06/23/2003
2
SORRELLS, MARTIN
Exec Dt:
06/23/2003
3
HARVEY, PETER
Exec Dt:
06/10/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7230543
US20050007259
10618269
Correspondence name and address
PATRICK H. MCCOLLOM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TX 77060
Assignment: 23
Reel/Frame:014447/0685   Pages: 3
Recorded: 08/27/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WISLER, MACMILLAN
Exec Dt:
07/28/2003
2
WU, JIAN-QUN
Exec Dt:
07/28/2003
3
WEISBECK, DENIS
Exec Dt:
07/28/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7170423
US20050046588
10649432
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TEXAS 77060
Assignment: 24
Reel/Frame:014942/0032   Pages: 3
Recorded: 01/24/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
WEISBECK, DENIS
Exec Dt:
08/22/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150-6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7145473
US20050046587
10649431
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TX 77060
Assignment: 25
Reel/Frame:015199/0503   Pages: 3
Recorded: 09/29/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VAN NGUY, VI (JIM)
Exec Dt:
11/28/2003
2
CRAM, BRUCE A.
Exec Dt:
11/28/2003
3
O'DWYER, KEVIN
Exec Dt:
11/28/2003
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVENUE SW
CALGARY, CANADA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20050126775
10711659
Correspondence name and address
BENNETT JONES
C/O MS ROSEANN CALDWELL
4500 BANKERS HALL EAST
855 - 2ND STREET, SW
CALGARY, AB CANADA T2P 4K7
Assignment: 26
Reel/Frame:015005/0839   Pages: 3
Recorded: 02/11/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WISLER, MACMILLAN
Exec Dt:
01/07/2004
2
HALL JR., HUGH
Exec Dt:
01/07/2004
3
WEISBECK, DENIS
Exec Dt:
01/07/2004
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150-6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7126492
US20050046589
10781585
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TX 77060
Assignment: 27
Reel/Frame:015150/0285   Pages: 3
Recorded: 03/17/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
MICKAEL, MEDHAT
Exec Dt:
03/08/2004
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200, 150 - 6TH AVENUE SW
CALGARY, ALBERTA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7253401
US20050199794
10809066
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TEXAS 77060
Assignment: 28
Reel/Frame:016411/0595   Pages: 3
Recorded: 03/31/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
STEINER, ADRIAN
Exec Dt:
03/21/2005
2
MCALARY, RICHARD ALLAN
Exec Dt:
03/21/2005
3
KRILL, ROSS MICHAEL
Exec Dt:
03/21/2005
Assignee
1
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
4200. 150-6TH AVENUE
S.W. CALGARY, ALBERTA, CANADA T2P 3Y7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7281593
US20060124300
11081605
Correspondence name and address
MEREK, BLAKMON & VOORHEES, LLC
673 SOUTH WASHINGTON STREET
ALEXANDRIA, VA 22314

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