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Patent Assignment Assignor Details
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Assignor Name : CHANG, FRANK F.
Total Assignments: 22
Assignment: 1
Reel/Frame:008924/0840   Pages: 4
Recorded: 11/17/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, FRANK F.
Exec Dt:
10/20/1997
2
PARLAR, MEHMET
Exec Dt:
10/10/1997
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5981447
NONE
08864269
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
JOHN E. VICK, JR.
PATENT COUNSEL
110 SCHLUMBERGER DRIVE
SUGAR LAND, TX 77478
Assignment: 2
Reel/Frame:009002/0736   Pages: 6
Recorded: 12/01/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CARD, ROGER J.
Exec Dt:
11/21/1997
2
BROWN, J. ERNEST
Exec Dt:
12/01/1997
3
VINOD, PALATHINKARA S.
Exec Dt:
12/01/1997
4
WILLBERG, DEAN M.
Exec Dt:
11/21/1997
5
SAMUEL, MATHEW M.
Exec Dt:
11/24/1997
6
CHANG, FRANK F.
Exec Dt:
12/01/1997
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5979557
NONE
08865137
Correspondence name and address
JENKENS & GILCHRIST
A.M. (ANDY) ARISMENDI, JR.
1100 LOUISIANA, SUITE 1800
HOUSTON, TEXAS 77002
Assignment: 3
Reel/Frame:009895/0883   Pages: 7
Recorded: 04/12/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TIBBLES, RAYMOND JOSEPH
Exec Dt:
03/09/1999
2
PARLAR, MEHMET
Exec Dt:
03/09/1999
3
CHANG, FRANK F.
Exec Dt:
02/12/1999
4
FU, DIANKUI
Exec Dt:
02/12/1999
5
DAVISON, JONATHAN MARK
Exec Dt:
03/23/1999
6
MORRIS, ELIZABETH WHITEFORD ANGUS
Exec Dt:
03/23/1999
7
WIERENGA, ANTJE M.
Exec Dt:
03/18/1999
8
VINOD, PALATHINKARA S.
Exec Dt:
02/12/1999
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6140277
NONE
09224440
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
PATENT COUNSEL
DOWELL DIVISION
110 SCHLUMBERGER DRIVE, MD-1975
SUGAR LAND, TX 77478
Assignment: 4
Reel/Frame:009792/0810   Pages: 15
Recorded: 02/23/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QU, QI
Exec Dt:
02/16/1999
2
NELSON, ERIK B.
Exec Dt:
02/16/1999
3
WILLBERG, DEAN M.
Exec Dt:
02/16/1999
4
SAMUEL, MATHEW M.
Exec Dt:
02/16/1999
5
LEE, JESSE C., JR.
Exec Dt:
02/16/1999
6
CHANG, FRANK F.
Exec Dt:
02/16/1999
7
CARD, ROGER J.
Exec Dt:
02/16/1999
8
VINOD, PALATHINKARA S.
Exec Dt:
02/16/1999
9
BROWN, J. ERNEST
Exec Dt:
02/16/1999
10
THOMAS, RONNIE L.
Exec Dt:
02/22/1999
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6435277
US20020023752
09256980
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
JOHN E. VIEL, JR.
DOWELL DIVISION, PATENT COUNSEL
110 SCHLUMBERGER DRIVE, MAIL DROP 1975
SUGAR LAND, TEXAS 77478
Assignment: 5
Reel/Frame:012540/0971   Pages: 15
Recorded: 01/17/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QU, QI
Exec Dt:
02/16/1999
2
NELSON, ERIK B.
Exec Dt:
02/16/1999
3
WILLBERG, DEAN M.
Exec Dt:
02/16/1999
4
SAMUEL, MATHEW M.
Exec Dt:
02/16/1999
5
LEE, JR., JESSE C.
Exec Dt:
02/16/1999
6
CHANG, FRANK F.
Exec Dt:
02/16/1999
7
CARD, ROGER J.
Exec Dt:
02/16/1999
8
VINOD, PALATHINKARA S.
Exec Dt:
02/16/1999
9
BROWN, J. ERNEST
Exec Dt:
02/16/1999
10
THOMAS, RONNIE L.
Exec Dt:
02/22/1999
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6637517
US20030019627
10051842
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
IP DEPT., WELL STIMULATION
110 SCHLUMBERGER DRIVE, MD1
SUGAR LAND, TX 77478
Assignment: 6
Reel/Frame:010325/0511   Pages: 4
Recorded: 10/15/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, FRANK F.
Exec Dt:
10/15/1999
2
QU, QI
Exec Dt:
10/15/1999
3
MILLER, MATTHEW J.
Exec Dt:
10/15/1999
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE, MD-1
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6399546
NONE
09419842
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
DOUG Y. BARBO
110 SCHLUMBERGER DRIVE, MD-1
SUGAR LAND, TEXAS 77478
Assignment: 7
Reel/Frame:012337/0261   Pages: 6
Recorded: 01/04/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, FRANK F.
Exec Dt:
11/12/2001
2
THOMAS, RONNIE L.
Exec Dt:
10/10/2001
3
GRANT, WALTER D.
Exec Dt:
11/13/2001
4
FRENIER, WAYNE F.
Exec Dt:
11/16/2001
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6924255
US20020070022
09961605
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
IP DEPT., WELL STIMULATION
110 SCHLUMBERGER DRIVE, MD1
SUGAR LAND, TEXAS 77478
Assignment: 8
Reel/Frame:012799/0454   Pages: 4
Recorded: 04/09/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FRENIER, WAYNE W.
Exec Dt:
11/12/2001
2
CHANG, FRANK F.
Exec Dt:
11/12/2001
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6806236
US20020104657
09961476
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
STEPHEN SCHLATHER
110 SCHLUMBERGER DRIVE, MD1
SUGAR LAND, TEXAS 77478
Assignment: 9
Reel/Frame:013344/0458   Pages: 3
Recorded: 09/30/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, FRANK F.
Exec Dt:
09/18/2002
2
FU, DIANKUI
Exec Dt:
09/19/2002
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7119050
US20030119680
10065144
Correspondence name and address
CATHERINE MENES
110 SCHLUMBERGER DRIVE, MD1
IP DEPT., WELL STIMULATION
SUGAR LAND, TX 77478
Assignment: 10
Reel/Frame:014131/0081   Pages: 7
Recorded: 11/17/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BEHRMANN, LAWRENCE A.
Exec Dt:
11/14/2003
2
AYOUB, JOSEPH A.
Exec Dt:
10/28/2003
3
WALTON, IAN
Exec Dt:
10/27/2003
4
VENKITARAMAN, ADINATHAN
Exec Dt:
10/28/2003
5
CHANG, FRANK F.
Exec Dt:
10/27/2003
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7182138
US20040099418
10667011
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORP.
JEFFREY E. GRIFFIN
PO BOX 1590
ROSHARON, TX 77583-1590
Assignment: 11
Reel/Frame:014671/0826   Pages: 7
Recorded: 11/04/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WALTON, IAN
Exec Dt:
10/27/2003
2
CHANG, FRANK F.
Exec Dt:
10/27/2003
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7036594
US20040089449
10701309
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
JEFFREY E. GRIFFIN
ATTN: PATENT COUNSEL
P.O. BOX 1590
ROSHARON, TX 77583-1590
Assignment: 12
Reel/Frame:014494/0118   Pages: 4
Recorded: 04/12/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FRENIER, WAYNE W
Exec Dt:
03/24/2004
2
CHANG, FRANK F.
Exec Dt:
03/19/2004
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE MD1
SUGAR LAND, TEXAS 77469
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6806236
US20020104657
09961476
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
IP DEPT., WELL STIMULATION
110 SCHLUMBERGER DRIVE, MD1
SUGAR LAND, TX 77478
Assignment: 13
Reel/Frame:015882/0685   Pages: 9
Recorded: 04/08/2005
Attorney Dkt #:22.1558
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, FRANK F.
Exec Dt:
03/18/2005
2
BEHRMANN, LAWRENCE A.
Exec Dt:
04/08/2005
3
WALTON, IAN C.
Exec Dt:
03/18/2005
4
CHAN, KENG SENG
Exec Dt:
03/17/2005
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7451819
US20050167108
10907148
Correspondence name and address
SCHLUMBERGER RESERVOIR COMPLETIONS
14910 AIRLINE ROAD
P.O. BOX 1590
ROSHARON, TX 77583-1590
Assignment: 14
Reel/Frame:022315/0611   Pages: 8
Recorded: 02/26/2009
Attorney Dkt #:56.1154
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SAMUEL, MATHEW M.
Exec Dt:
01/06/2009
2
BALABATYROV, YERIK
Exec Dt:
01/19/2009
3
CHANG, FRANK F.
Exec Dt:
01/10/2009
4
GRIFFITH, MARTIN
Exec Dt:
02/10/2009
5
MORRIS, LIZ
Exec Dt:
01/07/2009
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7878246
US20090139766
12323675
Correspondence name and address
RACHEL E. GREENE
110 SCHLUMBERGER DR., MD-1
SUGAR LAND, TX 77478
Assignment: 15
Reel/Frame:024317/0490   Pages: 7
Recorded: 04/30/2010
Attorney Dkt #:56.1366
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUSTOS, OSCAR
Exec Dt:
04/05/2010
2
SAMUEL, MATHEW M.
Exec Dt:
04/08/2010
3
CHANG, FRANK F.
Exec Dt:
04/16/2010
4
LI, LEIMING
Exec Dt:
04/02/2010
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110111989
12751596
Correspondence name and address
RACHEL E. GREENE
110 SCHLUMBERGER DR., MD-1
SUGAR LAND, TX 77478
Assignment: 16
Reel/Frame:028601/0480   Pages: 7
Recorded: 07/20/2012
Attorney Dkt #:56.1366-US-PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUSTOS, OSCAR
Exec Dt:
04/05/2010
2
SAMUEL, MATHEW M.
Exec Dt:
04/08/2010
3
CHANG, FRANK F.
Exec Dt:
04/16/2010
4
LI, LEIMING
Exec Dt:
04/02/2010
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20130045899
13254872
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
10001 RICHMOND AVENUE
IP CENTER OF EXCELLENCE
HOUSTON, TX 77042
Assignment: 17
Reel/Frame:026410/0890   Pages: 8
Recorded: 06/08/2011
Attorney Dkt #:56.1392
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
AYOUB, JOSEPH A.
Exec Dt:
05/18/2011
2
PATEL, DINESH R.
Exec Dt:
05/20/2011
3
ENGLAND, KEVIN W.
Exec Dt:
05/16/2011
4
CHANG, FRANK F.
Exec Dt:
05/14/2011
5
WATERS, GEORGE
Exec Dt:
05/13/2011
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE, MD-1
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110284214
13102237
Correspondence name and address
MARTIN RZANIAK
110 SCHLUMBERGER DRIVE, MD-1
SUGAR LAND, TX 77478
Assignment: 18
Reel/Frame:027294/0807   Pages: 10
Recorded: 11/29/2011
Attorney Dkt #:90.0032 US NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DYER, STEPHEN
Exec Dt:
10/18/2011
2
ALI, ATHAR
Exec Dt:
10/25/2011
3
CHANG, FRANK F.
Exec Dt:
10/09/2011
4
QIU, XIANGDONG
Exec Dt:
10/09/2011
5
CHEN, KUO-CHIANG
Exec Dt:
10/14/2011
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9133683
US20130020088
13185957
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
10001 RICHMOND AVENUE
IP ADMINISTRATION CENTER OF EXCELLENCE
HOUSTON, TX 77042
Assignment: 19
Reel/Frame:031579/0059   Pages: 7
Recorded: 11/11/2013
Attorney Dkt #:IS12.2321-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIU, XIANGDONG
Exec Dt:
10/27/2013
2
CHANG, FRANK F.
Exec Dt:
10/31/2013
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9109440
US20140057356
13972669
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
10001 RICHMOND AVENUE
IP ADMINISTRATION CENTER OF EXCELLENCE
HOUSTON, TX 77042
Assignment: 20
Reel/Frame:032341/0138   Pages: 7
Recorded: 03/04/2014
Attorney Dkt #:IS12.2692-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHANG, FRANK F.
Exec Dt:
10/31/2013
2
ABBAD, MUSTAPHA
Exec Dt:
11/11/2013
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140054039
13966083
Correspondence name and address
KRISTINE DUMAS-SCARBER
10001 RICHMOND AVENUE
ROOM 4720
HOUSTON, TX 77042
Assignment: 21
Reel/Frame:032449/0149   Pages: 6
Recorded: 03/17/2014
Attorney Dkt #:IS12.2872-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHAO, WEISHU
Exec Dt:
10/28/2013
2
CHANG, FRANK F.
Exec Dt:
10/31/2013
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140054040
13972651
Correspondence name and address
KRISTINE DUMAS-SCARBER
10001 RICHMOND AVENUE
ROOM 4720
HOUSTON, TX 77042
Assignment: 22
Reel/Frame:063080/0704   Pages: 3
Recorded: 03/23/2023
Attorney Dkt #:18733-375002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CAIRNS, AMY J.
Exec Dt:
08/08/2022
2
CHANG, FRANK F.
Exec Dt:
08/08/2022
3
SAYED, MOHAMMED
Exec Dt:
08/08/2022
Assignee
1
ARAMCO SERVICES COMPANY
1200 SMITH STREET
HOUSTON, TEXAS 77002
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230184075
18046351
Correspondence name and address
JEFFREY S. BERGMAN
1100 LOUISIANA
STE 4900
HOUSTON, TX 77002

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