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Reel/Frame:016686/0591   Pages: 3
Recorded: 10/27/2005
Attorney Dkt #:BULK TO RH UK LTD
Conveyance: CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Total properties: 29
1
Patent #:
5732783
Issue Dt:
03/31/1998
Application #:
08584852
Filing Dt:
01/11/1996
Title:
IN OR RELATING TO ROTARY DRILL BITS
2
Patent #:
6089336
Issue Dt:
07/18/2000
Application #:
08834439
Filing Dt:
04/16/1997
Title:
ROTARY DRILL BITS
3
Patent #:
5904213
Issue Dt:
05/18/1999
Application #:
08835812
Filing Dt:
04/16/1997
Title:
IMPROVEMENTS IN OR RELATING TO ROTARY DRILL BITS
4
Patent #:
6009962
Issue Dt:
01/04/2000
Application #:
08900910
Filing Dt:
07/28/1997
Title:
IMPREGNATED TYPE ROTARY DRILL BITS
5
Patent #:
6123161
Issue Dt:
09/26/2000
Application #:
08982837
Filing Dt:
12/02/1997
Title:
ROTARY DRILL BITS
6
Patent #:
6011232
Issue Dt:
01/04/2000
Application #:
09008051
Filing Dt:
01/16/1998
Title:
MANUFACTURE OF ELEMENTS FACED WITH SUPERHARD MATERIAL
7
Patent #:
5944128
Issue Dt:
08/31/1999
Application #:
09019877
Filing Dt:
02/06/1998
Title:
MATRIX HARD FACING BY LOST WAX PROCESS
8
Patent #:
6164395
Issue Dt:
12/26/2000
Application #:
09046148
Filing Dt:
03/23/1998
Title:
CUTTING STRUCTURE FOR ROTARY DRILL BITS
9
Patent #:
6065553
Issue Dt:
05/23/2000
Application #:
09047916
Filing Dt:
03/25/1998
Title:
SPLIT BLADE ROTARY DRAG TYPE DRILL BITS AND METHODS OF DESIGNING
10
Patent #:
6131678
Issue Dt:
10/17/2000
Application #:
09061615
Filing Dt:
04/16/1998
Title:
IMPROVEMENTS IN PREFORM ELEMENTS AND MOUNTINGS THEREFOR
11
Patent #:
6062325
Issue Dt:
05/16/2000
Application #:
09061679
Filing Dt:
04/16/1998
Title:
ROTARY DRILL BITS
12
Patent #:
6142250
Issue Dt:
11/07/2000
Application #:
09066160
Filing Dt:
04/24/1998
Title:
ROTARY DRILL BIT HAVING MOVEABLE FORMATION-ENGAGING MEMBERS
13
Patent #:
6077591
Issue Dt:
06/20/2000
Application #:
09094994
Filing Dt:
06/15/1998
Title:
ELEMENTS FACED WITH SUPERHARD MATERIAL
14
Patent #:
6116360
Issue Dt:
09/12/2000
Application #:
09108748
Filing Dt:
07/01/1998
Title:
"METHODS OF MANUFACTURING ROTARY DRILL BITS"
15
Patent #:
6056911
Issue Dt:
05/02/2000
Application #:
09114640
Filing Dt:
07/13/1998
Title:
METHODS OF TREATING PREFORM INCLUDING POLYCRYSTALLINE DIAMOND BONDED TO A SUBSTRATE
16
Patent #:
6098729
Issue Dt:
08/08/2000
Application #:
09144955
Filing Dt:
09/01/1998
Title:
PREFORM CUTTING ELEMENTS FOR ROTARY DRILL BITS
17
Patent #:
6098726
Issue Dt:
08/08/2000
Application #:
09158201
Filing Dt:
09/22/1998
Title:
TORQUE TRANSMITTING DEVICE FOR ROTARY DRILL BITS
18
Patent #:
6129161
Issue Dt:
10/10/2000
Application #:
09159715
Filing Dt:
09/24/1998
Title:
IN OR RELATING TO ROTARY DRILL BITS
19
Patent #:
6246974
Issue Dt:
06/12/2001
Application #:
09160282
Filing Dt:
09/24/1998
Title:
METHOD OF DETERMINING CHARACTERISTICS OF A ROTARY DRAG-TYPE DRILL BIT
20
Patent #:
6145607
Issue Dt:
11/14/2000
Application #:
09184607
Filing Dt:
11/02/1998
Title:
PREFORM CUTTING ELEMENTS FOR ROTARY DRAG-TYPE DRILL BITS
21
Patent #:
6148936
Issue Dt:
11/21/2000
Application #:
09244471
Filing Dt:
02/04/1999
Title:
METHODS OF MANUFACTURING ROTARY DRILL BITS
22
Patent #:
6164390
Issue Dt:
12/26/2000
Application #:
09245605
Filing Dt:
02/05/1999
Title:
METHOD OF DETERMINING CHARACTERISTICS OF A ROTARY DRAG-TYPE DRILL BIT
23
Patent #:
6234261
Issue Dt:
05/22/2001
Application #:
09340984
Filing Dt:
06/28/1999
Title:
METHOD OF APPLYING A WEAR-RESISTANT LAYER TO A SURFACE OF A DOWNHOLE COMPONENT
24
Patent #:
6269894
Issue Dt:
08/07/2001
Application #:
09379865
Filing Dt:
08/24/1999
Title:
CUTTING ELEMENTS FOR ROTARY DRILL BITS
25
Patent #:
6248447
Issue Dt:
06/19/2001
Application #:
09390074
Filing Dt:
09/03/1999
Title:
CUTTING ELEMENTS AND METHODS OF MANUFACTURE THEREOF
26
Patent #:
6227044
Issue Dt:
05/08/2001
Application #:
09405830
Filing Dt:
09/24/1999
Title:
METHODS AND APPARATUS FOR DETECTING TORSIONAL VIBRATION IN A BOTTOMHOLE ASSEMBLY
27
Patent #:
6348110
Issue Dt:
02/19/2002
Application #:
09543306
Filing Dt:
04/05/2000
Title:
Methods of manufacturing rotary drill bits
28
Patent #:
6575350
Issue Dt:
06/10/2003
Application #:
09800242
Filing Dt:
03/06/2001
Publication #:
US20010030067
Pub Dt:
10/18/2001
Title:
METHOD OF APPLYING A WEAR-RESISTANT LAYER TO A SURFACE OF A DOWNHOLE COMPONENT
29
Patent #:
6517902
Issue Dt:
02/11/2003
Application #:
09827672
Filing Dt:
04/06/2001
Publication #:
US20010049019
Pub Dt:
12/06/2001
Title:
METHODS OF TREATING PREFORM ELEMENTS
Assignor
1
CAMCO INTERNATIONAL (UK) LIMITED
Exec Dt:
02/18/2003
Assignee
1
REEDHYCALOG UK LTD
STONEDALE ROAD, OLDENDS LANE INDUSTRIAL ESTATE
STONEHOUSE, UNITED KINGDOM GL10 3RQ
Correspondence name and address
JAYNE SIPPL
400 N. SAM HOUSTON PKWY E. #900
HOUSTON, TX 77060

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