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Patent Assignment Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:015370/0384   Pages: 4
Recorded: 11/08/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 43
1
Patent #:
4889017
Issue Dt:
12/26/1989
Application #:
07187811
Filing Dt:
04/29/1988
Title:
ROTARY DRILL BIT FOR USE IN DRILLING HOLES IN SUBSURFACE EARTH FORMATIONS
2
Patent #:
4956238
Issue Dt:
09/11/1990
Application #:
07204688
Filing Dt:
06/09/1988
Title:
MANUFACTURE OF CUTTING STRUCTURES FOR ROTARY DRILL BITS
3
Patent #:
4942933
Issue Dt:
07/24/1990
Application #:
07250930
Filing Dt:
09/29/1988
Title:
RELATING TO ROTARY DRILL BITS
4
Patent #:
4873895
Issue Dt:
10/17/1989
Application #:
07265237
Filing Dt:
10/31/1988
Title:
MANUFACTURE OF ROTARY DRILL BITS
5
Patent #:
4949598
Issue Dt:
08/21/1990
Application #:
07265238
Filing Dt:
10/31/1988
Title:
MANUFACTURE OF ROTARY DRILL BITS
6
Patent #:
4898252
Issue Dt:
02/06/1990
Application #:
07269780
Filing Dt:
11/10/1988
Title:
CUTTING STRUCTURES FOR ROTARY DRILL BITS
7
Patent #:
4947945
Issue Dt:
08/14/1990
Application #:
07321772
Filing Dt:
03/10/1989
Title:
RELATING TO CUTTER ASSEMBLIES FOR ROTARY DRILL BITS
8
Patent #:
5025874
Issue Dt:
06/25/1991
Application #:
07333120
Filing Dt:
04/04/1989
Title:
CUTTING ELEMENTS FOR ROTARY DRILL BITS
9
Patent #:
4995887
Issue Dt:
02/26/1991
Application #:
07333297
Filing Dt:
04/04/1989
Title:
CUTTING ELEMENTS FOR ROTARY DRILL BITS
10
Patent #:
5111895
Issue Dt:
05/12/1992
Application #:
07510160
Filing Dt:
04/16/1990
Title:
CUTTING ELEMENTS FOR ROTARY DRILL BITS
11
Patent #:
5135061
Issue Dt:
08/04/1992
Application #:
07562115
Filing Dt:
08/03/1990
Title:
CUTTING ELEMENTS FOR ROTARY DRILL BITS
12
Patent #:
5186268
Issue Dt:
02/16/1993
Application #:
07785460
Filing Dt:
10/31/1991
Title:
ROTARY DRILL BITS
13
Patent #:
5163524
Issue Dt:
11/17/1992
Application #:
07785543
Filing Dt:
10/31/1991
Title:
ROTARY DRILL BITS
14
Patent #:
5222566
Issue Dt:
06/29/1993
Application #:
07828425
Filing Dt:
01/31/1992
Title:
ROTARY DRILL BITS AND METHODS OF DESIGNING SUCH DRILL BITS
15
Patent #:
5417296
Issue Dt:
05/23/1995
Application #:
08236475
Filing Dt:
05/02/1994
Title:
ROTARY DRILL BITS
16
Patent #:
5425288
Issue Dt:
06/20/1995
Application #:
08249260
Filing Dt:
05/25/1994
Title:
MANUFACTURE OF ROTARY DRILL BITS
17
Patent #:
5421425
Issue Dt:
06/06/1995
Application #:
08270031
Filing Dt:
07/01/1994
Title:
CUTTING ELEMENTS FOR ROTARY DRILL BITS
18
Patent #:
5531281
Issue Dt:
07/02/1996
Application #:
08275145
Filing Dt:
07/14/1994
Title:
ROTARY DRILLING TOOLS
19
Patent #:
5598750
Issue Dt:
02/04/1997
Application #:
08337241
Filing Dt:
11/09/1994
Title:
ELEMENTS FACED WITH SUPERHARD MATERIAL
20
Patent #:
5590728
Issue Dt:
01/07/1997
Application #:
08337663
Filing Dt:
11/09/1994
Title:
IMPROVEMENTS IN OR RELATING TO ELEMENTS FACED WITH SUPERHARD MATERIAL
21
Patent #:
5622233
Issue Dt:
04/22/1997
Application #:
08491061
Filing Dt:
06/16/1995
Title:
ELEMENTS FACED WITH SUPERHARD MATERIALS
22
Patent #:
5617928
Issue Dt:
04/08/1997
Application #:
08491063
Filing Dt:
06/16/1995
Title:
ELEMENTS FACED WITH SUPERHARD MATERIAL
23
Patent #:
5611649
Issue Dt:
03/18/1997
Application #:
08491537
Filing Dt:
06/16/1995
Title:
ELEMENTS FACED WITH SUPERHARD MATERIAL
24
Patent #:
5605199
Issue Dt:
02/25/1997
Application #:
08493191
Filing Dt:
06/20/1995
Title:
ELEMENTS FACED WITH SUPER HARD MATERIAL
25
Patent #:
5649604
Issue Dt:
07/22/1997
Application #:
08538759
Filing Dt:
10/03/1995
Title:
ROTARY DRILL BITS
26
Patent #:
5651421
Issue Dt:
07/29/1997
Application #:
08541771
Filing Dt:
10/10/1995
Title:
ROTARY DRILL BITS
27
Patent #:
5671818
Issue Dt:
09/30/1997
Application #:
08541774
Filing Dt:
10/10/1995
Title:
ROTARY DRILL BITS
28
Patent #:
5697461
Issue Dt:
12/16/1997
Application #:
08541995
Filing Dt:
10/10/1995
Title:
ROTARY DRILL BIT HAVING A NON-ROTATING GUAGE SECTION
29
Patent #:
5669271
Issue Dt:
09/23/1997
Application #:
08569333
Filing Dt:
12/08/1995
Title:
ELEMENTS FACED WITH SUPERHARD MATERIAL
30
Patent #:
5720357
Issue Dt:
02/24/1998
Application #:
08611393
Filing Dt:
03/06/1996
Title:
CUTTER ASSEMBLIES FOR ROTARY DRILL BITS
31
Patent #:
5862873
Issue Dt:
01/26/1999
Application #:
08616361
Filing Dt:
03/15/1996
Title:
ELEMENTS FACED WITH SUPERHARD MATERIAL
32
Patent #:
5769175
Issue Dt:
06/23/1998
Application #:
08618433
Filing Dt:
03/15/1996
Title:
CUTTER ASSEMBLIES FOR ROTARY DRILL BITS
33
Patent #:
5819862
Issue Dt:
10/13/1998
Application #:
08618657
Filing Dt:
03/19/1996
Title:
DOWNHOLE COMPONENTS FOR USE IN SUBSURFACE DRILLING
34
Patent #:
5740874
Issue Dt:
04/21/1998
Application #:
08635110
Filing Dt:
04/19/1996
Title:
CUTTING ELEMENTS FOR ROTARY DRILL BITS
35
Patent #:
5699868
Issue Dt:
12/23/1997
Application #:
08637985
Filing Dt:
04/24/1996
Title:
ROTARY DRILL BITS HAVING NOZZLES TO ENHANCE RECIRCULATION
36
Patent #:
5788001
Issue Dt:
08/04/1998
Application #:
08639233
Filing Dt:
04/18/1996
Title:
ELEMENTS FACED WITH SUPERHARD MATERIAL
37
Patent #:
5888619
Issue Dt:
03/30/1999
Application #:
08716586
Filing Dt:
09/18/1996
Title:
ELEMENTS FACED WITH SUPERHARD MATERIAL
38
Patent #:
5829539
Issue Dt:
11/03/1998
Application #:
08800156
Filing Dt:
02/13/1997
Title:
ROTARY DRILL BIT WITH HARDFACED FLUID PASSAGES AND METHOD OF MANUFACTURING
39
Patent #:
5819860
Issue Dt:
10/13/1998
Application #:
08834440
Filing Dt:
04/16/1997
Title:
ROTARY DRILL BITS
40
Patent #:
5992549
Issue Dt:
11/30/1999
Application #:
08949178
Filing Dt:
10/10/1997
Title:
CUTTING STRUCTURES FOR ROTARY DRILL BITS
41
Patent #:
6065554
Issue Dt:
05/23/2000
Application #:
08949224
Filing Dt:
10/10/1997
Title:
PREFORM CUTTING ELEMENTS FOR ROTARY DRILL BITS
42
Patent #:
6082474
Issue Dt:
07/04/2000
Application #:
09097626
Filing Dt:
06/16/1998
Title:
ELEMENTS FACED WITH SUPERHARD MATERIAL
43
Patent #:
6151960
Issue Dt:
11/28/2000
Application #:
09160002
Filing Dt:
09/24/1998
Title:
METHOD OF DETERMINING CHARACTERISTICS OF A ROTARY DRAG-TYPE DRILL BIT
Assignor
1
CAMCO DRILLING GROUP LIMITED
Exec Dt:
10/11/2004
Assignee
1
REEDHYCALOG UK LIMITED
OLDENDS LANE INDUSTRIAL ESTATE
STONEHOUSE GLOS, UNITED KINGDOM GL10 3RQ
Correspondence name and address
GRANT PRIDECO, L.P.
JEFFREY E. DALY
400 NO. SAM HOUSTON PKWY E.
SUITE 900
HOUSTON, TX 77060

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