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Assignor Name : SHEFFIELD, RANDOLPH J.
Total Assignments: 18
Assignment: 1
Reel/Frame:011498/0443   Pages: 6
Recorded: 01/08/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
THOMEER, HUBERTUS V.
Exec Dt:
09/26/2000
2
COSTLEY, JAMES MICHAEL
Exec Dt:
09/26/2000
3
SHEFFIELD, RANDOLPH J.
Exec Dt:
09/26/2000
4
ESLINGER, DAVID M.
Exec Dt:
09/26/2000
5
ALLCORN, MARC
Exec Dt:
09/26/2000
6
OETTLI, MARK C.
Exec Dt:
09/26/2000
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE, MD-1
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6439313
NONE
09666724
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
THOMAS MITCHELL
110 SCHLUMBERGER DRIVE, MD1
SUGAR LAND, TX 77478
Assignment: 2
Reel/Frame:011337/0011   Pages: 7
Recorded: 11/20/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HILL, STEPHEN D.
Exec Dt:
11/09/2000
2
COSTLEY, JAMES M.
Exec Dt:
11/08/2000
3
ESLINGER, DAVID M.
Exec Dt:
11/08/2000
4
OETTLI, MARK C.
Exec Dt:
11/15/2000
5
SHEFFIELD, RANDOLPH J.
Exec Dt:
11/17/2000
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6425443
NONE
09716986
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
TIM W. CURINGTON
ATTN: PATENT COUNSEL
P.O. BOX 1590
ROSHARON, TX 77583-1590
Assignment: 3
Reel/Frame:011340/0287   Pages: 7
Recorded: 11/20/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HILL, STEPHEN D.
Exec Dt:
11/09/2000
2
COSTLEY, JAMES M.
Exec Dt:
11/08/2000
3
ESLINGER, DAVID M.
Exec Dt:
11/08/2000
4
OETTLI, MARK C.
Exec Dt:
11/15/2000
5
SHEFFIELD, RANDOLPH J.
Exec Dt:
11/17/2000
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6425443
NONE
09716986
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
TIM W. CURINGTON
ATTN: PATENT COUNSEL
P.O. BOX 1590
ROSHARON, TX 77583-1590
Assignment: 4
Reel/Frame:011328/0701   Pages: 7
Recorded: 11/29/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ESLINGER, DAVID M.
Exec Dt:
11/22/2000
2
MCGILL, HOWARD L.
Exec Dt:
11/22/2000
3
COSTLEY, JAMES M.
Exec Dt:
11/22/2000
4
SHEFFIELD, RANDOLPH J.
Exec Dt:
11/22/2000
5
ZEMLAK, WARREN M.
Exec Dt:
11/22/2000
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
1100 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6533037
US20020062963
09725779
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
JEFFREY E. GRIFFIN
14910 AIRLINE ROAD
P.O. BOX 1590
ROSHARON, TX 77583-1590
Assignment: 5
Reel/Frame:012411/0475   Pages: 5
Recorded: 12/19/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KENISON, MICHAEL H.
Exec Dt:
12/19/2001
2
VENERUSO, ANTHONY F.
Exec Dt:
12/19/2001
3
SHEFFIELD, RANDOLPH J.
Exec Dt:
12/18/2001
4
ROUSE, MATTHEW D.
Exec Dt:
12/18/2001
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20020133942
10025286
Correspondence name and address
SCHLUMBERGER CONVEYANCE AND DELIVERY
WAYNE KANAK
555 INDUSTRIAL BLVD.
SUGAR LAND, TX 77478
Assignment: 6
Reel/Frame:012626/0756   Pages: 6
Recorded: 02/19/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ESLINGER, DAVID M.
Exec Dt:
02/15/2002
2
HILL, STEPHEN D.
Exec Dt:
02/15/2002
3
SHEFFIELD, RANDOLPH J.
Exec Dt:
02/15/2002
4
MCGILL, HOWARD L.
Exec Dt:
02/15/2002
5
COSTLEY, JAMES M.
Exec Dt:
02/15/2002
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6776239
US20020125005
10078963
Correspondence name and address
SCHLUMBERGER CONVEYANCE AND DELIVERY
MR. WAYNE KANAK
555 INDUSTRIAL BOULEVARD
SUGAR LAND, TEXAS 77478
Assignment: 7
Reel/Frame:012711/0179   Pages: 5
Recorded: 03/13/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHEFFIELD, RANDOLPH J.
Exec Dt:
03/13/2002
2
ESLINGER, DAVID M.
Exec Dt:
03/13/2002
3
OETTLI, MARK C.
Exec Dt:
03/13/2002
4
HURTADO, JOSE F.
Exec Dt:
03/12/2002
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6668938
US20020139541
10098121
Correspondence name and address
SCHLUMBERGER CONVEYANCE AND DELIVERY
MR. WAYNE KANAK
555 INDUSTRIAL BOULEVARD
SUGAR LAND, TEXAS 77478
Assignment: 8
Reel/Frame:012773/0088   Pages: 4
Recorded: 04/01/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ESLINGER, DAVID M.
Exec Dt:
03/29/2002
2
SHEFFIELD, RANDOLPH J.
Exec Dt:
04/01/2002
3
OETTLI, MARK C.
Exec Dt:
04/01/2002
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6655461
US20020153142
10113500
Correspondence name and address
SCLUMBERGER CONVEYANCE AND DELIVERY
MR. WAYNE KANAK
555 INDUSTRIAL BOULEVARD
SUGAR LAND, TEXAS 77478
Assignment: 9
Reel/Frame:014348/0797   Pages: 6
Recorded: 07/29/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
COSTLY, JAMES D.
Exec Dt:
07/29/2003
2
ESLINGER, DAVID M
Exec Dt:
07/11/2003
3
SHEFFIELD, RANDOLPH J.
Exec Dt:
07/15/2003
4
MCKEE, L. MICHAEL
Exec Dt:
07/18/2003
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7011157
US20040084187
10629163
Correspondence name and address
SCHLUMBERGER CONVEYANCE AND DELIVERY
WAYNE KANAK
555 INDUSTRIAL BLVD.
SUGAR LAND, TX 77478
Assignment: 10
Reel/Frame:015331/0085   Pages: 9
Recorded: 11/04/2004
Attorney Dkt #:68.0516
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WETZEL, RODNEY J.
Exec Dt:
11/02/2004
2
SHEFFIELD, RANDOLPH J.
Exec Dt:
11/01/2004
3
BHAVSAR, RASHMI B.
Exec Dt:
11/03/2004
4
GAMBIER, PHILIPPE
Exec Dt:
10/28/2004
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7353869
US20060090892
10904327
Correspondence name and address
SCHLUMBERGER RESERVOIR COMPLETIONS
14910 AIRLINE ROAD
P.O. BOX 1590
ROSHARON, TX 77583-1590
Assignment: 11
Reel/Frame:015331/0127   Pages: 5
Recorded: 11/04/2004
Attorney Dkt #:68.0506
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SHEFFIELD, RANDOLPH J.
Exec Dt:
11/01/2004
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7445048
US20060090893
10904324
Correspondence name and address
SCHLUMBERGER TECHNOLOGY, CORP.
JAIME A. CASTANO
14910 AIRLINE ROAD
P.O. BOX 1590
ROSHARON, TEXAS 77583
Assignment: 12
Reel/Frame:015448/0204   Pages: 5
Recorded: 12/14/2004
Attorney Dkt #:68.0530
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SHEFFIELD, RANDOLPH J.
Exec Dt:
12/09/2004
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7493962
US20060124318
10905069
Correspondence name and address
SCHLUMBERGER RESERVOIR COMPLETIONS
14910 AIRLINE ROAD
P.O. BOX 1590
ROSHARON, TX 77583-1590
Assignment: 13
Reel/Frame:015475/0032   Pages: 5
Recorded: 12/21/2004
Attorney Dkt #:68.0479
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SHEFFIELD, RANDOLPH J.
Exec Dt:
12/09/2004
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8517113
US20060131030
10905196
Correspondence name and address
SCHLUMBERGER RESERVOIR COMPLETIONS
14910 AIRLINE ROAD
P.O. BOX 1590
ROSHARON, TX 77583-1590
Assignment: 14
Reel/Frame:016384/0436   Pages: 8
Recorded: 03/11/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUANG,SONGMING
Exec Dt:
01/05/2005
2
MONMONT, FRANCK BRUNO JEAN
Exec Dt:
01/05/2005
3
TENNENT, ROBERT W.
Exec Dt:
01/05/2005
4
SHEFFIELD, RANDOLPH J.
Exec Dt:
01/04/2005
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7348893
US20060131014
11077936
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORP.
ATTN: PATENT COUNSEL
14010 AIRLINE ROAD
ROSHARON, TEXAS 77583
Assignment: 15
Reel/Frame:015866/0544   Pages: 21
Recorded: 04/06/2005
Attorney Dkt #:68.0469
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PATEL, DINESH R.
Exec Dt:
03/03/2005
2
HILSMAN, Y. GIL
Exec Dt:
03/07/2005
3
OHMER, HERVE
Exec Dt:
03/03/2005
4
HIRON, STEPHANE
Exec Dt:
03/10/2005
5
GAMBIER, PHILIPPE
Exec Dt:
03/07/2005
6
WHITEHEAD, JONATHAN K.C.
Exec Dt:
03/21/2005
7
SHEFFIELD, RANDOLPH J.
Exec Dt:
04/05/2005
8
WETZEL, RODNEY J.
Exec Dt:
03/04/2005
9
WHITSITT, JOHN R.
Exec Dt:
03/07/2005
10
MACDOUGALL, THOMAS D.
Exec Dt:
03/03/2005
11
VAIDYA, NITIN Y.
Exec Dt:
03/02/2005
12
HENDRICKSON, JAMES D.
Exec Dt:
03/07/2005
13
EDWARDS, JOHN E.
Exec Dt:
02/02/2005
14
ROSS, DONALD W.
Exec Dt:
03/07/2005
15
BHAVSAR, RASHMI B.
Exec Dt:
03/03/2005
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7665537
US20050199401
10906880
Correspondence name and address
SCHLUMBERGER RESERVOIR COMPLETIONS
14910 AIRLINE ROAD
P.O. BOX 1590
ROSHARON, TX 77583-1590
Assignment: 16
Reel/Frame:016330/0092   Pages: 5
Recorded: 07/29/2005
Attorney Dkt #:68.0426
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
OHMER, HERVE
Exec Dt:
06/30/2005
2
HUBER, KLAUS B.
Exec Dt:
06/30/2005
3
SHEFFIELD, RANDOLPH J.
Exec Dt:
06/30/2005
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7347271
US20060086497
11161342
Correspondence name and address
SCHLUMBERGER RESERVOIR COMPLETIONS
14910 AIRLINE ROAD
ROSHARON, TX 77583
Assignment: 17
Reel/Frame:016668/0926   Pages: 9
Recorded: 10/21/2005
Attorney Dkt #:68.0426CIP1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LEMENAGER, ERWANN
Exec Dt:
10/20/2005
2
OHMER, HERVE
Exec Dt:
10/20/2005
3
HUBER, KLAUS B.
Exec Dt:
10/20/2005
4
SHEFFIELD, RANDOLPH J.
Exec Dt:
10/18/2005
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7477160
US20070024464
11163502
Correspondence name and address
SCHLUMBERGER RESERVOIR COMPLETIONS
14910 AIRLINE ROAD
ROSHARON, TX 77583
Assignment: 18
Reel/Frame:017994/0081   Pages: 16
Recorded: 07/25/2006
Attorney Dkt #:68.0579
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WHITSITT, JOHN R.
Exec Dt:
07/06/2006
2
ARAQUE, CARLOS
Exec Dt:
07/12/2006
3
ESLINGER, DAVID M.
Exec Dt:
07/05/2006
4
GAMBIER, PHILIPPE
Exec Dt:
07/06/2006
5
PATEL, DINESH R.
Exec Dt:
07/07/2006
6
HARDWICK, CHAD
Exec Dt:
07/05/2006
7
JONAS, JASON K.
Exec Dt:
07/06/2006
8
DIVIS, ROBERT
Exec Dt:
07/05/2006
9
SHEFFIELD, RANDOLPH J.
Exec Dt:
07/13/2006
10
WHITE, BRYAN L.
Exec Dt:
07/12/2006
11
LUCAS, CHAD
Exec Dt:
07/12/2006
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7591321
US20060260820
11308617
Correspondence name and address
RHONDA J. SMITH
14910 AIRLINE ROAD
ROSHARON, TX 77583

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