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Patent Assignment Assignor Details
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Assignor Name : GRIFFIN, NIGEL D.
Total Assignments: 13
Assignment: 1
Reel/Frame:004535/0475   Pages: 1
Recorded: 04/01/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
GRIFFIN, NIGEL D.
Exec Dt:
03/26/1986
Assignee
1
NL PETROLEUM PRODUCTS LIMITED
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4669522
NONE
06846784
Correspondence name and address
WILIAM E. JOHNSON, JR.
NL INDUSTRIES, INC.
OFC. OF GENERAL COUNSEL
P. O. BOX 60087
HOUSTON, TX 77205
Assignment: 2
Reel/Frame:004917/0061   Pages: 1
Recorded: 08/08/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
GRIFFIN, NIGEL D.
Exec Dt:
07/20/1988
Assignee
1
REED TOOL COMPANY LIMITED, MONKSTOWN, NEWTOWNABBEY, ANTRIM, NORTHERN IRELAND
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4956238
NONE
07204688
Correspondence name and address
MARGARET E. ANDERSON
BROWNING, BUSHMAN, ZAMECKI & ANDERSON
5718 WESTHEIMER, STE. 1800
HOUSTON, TX 77057
Assignment: 3
Reel/Frame:004986/0436   Pages: 1
Recorded: 12/12/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
GRIFFIN, NIGEL D.
Exec Dt:
11/08/1988
Assignee
1
REED TOOL COMPANY LIMITED OF MONKSTOWN
NEWTOWNABBEY, NORTHERN, IRELAND
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4949598
NONE
07265238
Correspondence name and address
MARGARET E. ANDERSON
BROWNING, BUSHMAN, ZAMECKI & ANDERSON
5718 WESTHEIMER
STE. 1800
HOUSTON, TX 77057
Assignment: 4
Reel/Frame:005066/0624   Pages: 1
Recorded: 04/24/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
GRIFFIN, NIGEL D.
Exec Dt:
04/10/1989
Assignee
1
REED TOOL COMPANY LIMITED, HYCALOG, OLDENDS LANE INDUSTRIAL ESTATE, STONEHOUSE, GLOUCESTERSHIRE, ENGLAND
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4947945
NONE
07321772
Correspondence name and address
MARGARET E. ANDERSON
BROWNING, BUSHMAN, ZAMECKI & ANDERSON
5718 WESTHEIMER, STE. 1800
HOUSTON, TX 77057
Assignment: 5
Reel/Frame:005242/0585   Pages: 1
Recorded: 02/23/1990
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
GRIFFIN, NIGEL D.
Exec Dt:
01/29/1990
Assignee
1
REED TOOL COMPANY LIMITED OF HYCALOG
OLDENDS LANE INDUSTRIAL ESTATE, STONEHOUSE
GLOUCESTERSHIRE GL10 3RQ, ENGLAND
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5060739
NONE
07470916
Correspondence name and address
MARGARET E. ANDERSON
BROWNING, BUSHMAN, ANDERSON &
BROOKHART
5718 WESTHEIMER, STE. 1800
HOUSTON, TX 77057
Assignment: 6
Reel/Frame:005823/0008   Pages: 2
Recorded: 04/16/1990
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
GRIFFIN, NIGEL D.
Exec Dt:
03/22/1990
Assignee
1
REED TOOL COMPANY LIMITED, A NORTHERN IRELAND CORP.
MONKSTOWN, NEWTOWNABBEY, NORTHERN IRELAND
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5111895
NONE
07510160
Correspondence name and address
MARGARET E. ANDERSON
BROWNING, BUSHMAN, ANDERSON & BOOKHART
5718 WESTHEIMER
SUITE 1800
HOUSTON, TX 77057
Assignment: 7
Reel/Frame:006886/0510   Pages: 2
Recorded: 03/07/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
GRIFFIN, NIGEL D.
Exec Dt:
12/02/1993
Assignee
1
CAMCO INTERNATIONAL INC.
7030 ARDMORE
P.O. BOX 14484
HOUSTON, TEXAS 77054
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5469927
NONE
08163344
Correspondence name and address
CAMCO INTERNATIONAL INC.
SCOTT H. BROWN
P.O. BOX 14484
7030 ARDMORE
HOUSTON, TX 77054
Assignment: 8
Reel/Frame:007306/0754   Pages: 2
Recorded: 02/03/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRIFFIN, NIGEL D.
Exec Dt:
11/09/1994
2
NEWTON, ALEX
Exec Dt:
11/09/1994
Assignee
1
CAMCO DRILLING GROUP LIMITED
OF HYCALOG
OLDENDS LANE INDUSTRIAL ESTATE
STONEHOUSE, GLOUCESTERSHIRE, ENGLAND
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5598750
NONE
08337241
Correspondence name and address
CAMCO INTERNATIONAL INC.
SCOTT H. BROWN
P.O. BOX 14484
7030 ARDMORE
HOUSTON, TX 77221
Assignment: 9
Reel/Frame:007384/0414   Pages: 2
Recorded: 03/01/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MATTHIAS, TERRY R.
Exec Dt:
01/30/1995
2
GRIFFIN, NIGEL D.
Exec Dt:
01/03/1995
3
FULLER, JOHN M.
Exec Dt:
01/03/1995
Assignee
1
CAMCO DRILLING GROUP LIMITED
OLDENDS LANE INDUSTRIAL ESTATE STONHEHOUSE, GLOUCESTERSHIRE, ENGLAND
GLOUCESTERSHIRE,, ENGLAND
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5590728
NONE
08337663
Correspondence name and address
CAMCO INTERNATIONAL INC.
SCOTT H. BROWN
P.O. BOX 14484
HOUSTON, TX 77221
Assignment: 10
Reel/Frame:007615/0552   Pages: 2
Recorded: 09/05/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
GRIFFIN, NIGEL D.
Exec Dt:
08/22/1995
Assignee
1
CAMCO DRILLING GROUP LTD. OF HYCALOG
LANE INDUSTRIAL ESTATE
STONEHOUSE, GLOUCESTERSHIRE, ENGLAND
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5622233
NONE
08491061
Correspondence name and address
CAMCO INTERNATIONAL INC.
SCOTT H. BROWN
P.O. BOX 14484
7030 ARDMORE
HOUSTON, TX 77221
Assignment: 11
Reel/Frame:007615/0559   Pages: 2
Recorded: 09/05/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MATTHIAS, TERRY R.
Exec Dt:
08/22/1995
2
FULLER, JOHN M.
Exec Dt:
08/22/1995
3
GRIFFIN, NIGEL D.
Exec Dt:
08/22/1995
Assignee
1
CAMCO DRILLING GROUP LTD. OF HYCALOG
STONEHOUSE
LANE INDUSTRIAL ESTATE
GLOUCESTERSHIRE, ENGLAND
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5617928
NONE
08491063
Correspondence name and address
SCOTT H. BROWN
CAMCO INTERNATIONAL INC.
P.O. BOX 1448
7030 ARDMORE
HOUSTON, TX 77221
Assignment: 12
Reel/Frame:007920/0330   Pages: 2
Recorded: 05/02/1996
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRIFFIN, NIGEL D.
Exec Dt:
12/04/1995
2
FULLER, JOHN M.
Exec Dt:
12/04/1995
Assignee
1
CAMCO DRILLING GROUP LTD. OF HYCALOG
LANE INDUSTRIAL ESTATE
STONEHOUSE, GLOUCESTERSHIRE, ENGLAND
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5669271
NONE
08569333
Correspondence name and address
CAMCO INTERNATIONAL INC.
SCOTT H. BROWN
7030 ARDMORE
P.O. BOX 14484
HOUSTON, TX 77221
Assignment: 13
Reel/Frame:024064/0290   Pages: 3
Recorded: 03/11/2010
Attorney Dkt #:2160.018000/JED
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRIFFIN, NIGEL D.
Exec Dt:
03/10/2010
2
HUGHES, PETER R.
Exec Dt:
03/02/2010
Assignee
1
NATIONAL OILWELL VARCO, L.P.
7909 PARKWOOD CIRCLE DRIVE
HOUSTON, TEXAS 77036
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8910730
US20100200305
12704017
Correspondence name and address
JEFFERY E. DALY
10333 RICHMOND, SUITE 1100
HOUSTON, TX 77042

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