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Patent Assignment Assignor Details
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Assignor Name : ROSTHAL, RICHARD A.
Total Assignments: 25
Assignment: 1
Reel/Frame:004702/0247   Pages: 2
Recorded: 04/27/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
ROSTHAL, RICHARD A.
Exec Dt:
04/24/1987
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION, A CORP. OF TX
5000 GULF FREEWAY (P.O. BOX 2175)
HOUSTON, TEXAS 77023
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5157605
NONE
07043130
Correspondence name and address
SCHLUMBERGER WELL SERVICES PERFORATING C
ENTER
14910 AIRPLINE RD. DRAWER A
ROSHARON, TX 77583-0076
Assignment: 2
Reel/Frame:005818/0379   Pages: 3
Recorded: 08/30/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
ROSTHAL, RICHARD A.
Exec Dt:
08/07/1991
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
A CORPORATION OF TEXAS
5000 GULF FREEWAY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5329448
NONE
07741858
Correspondence name and address
JOHN J. RYBERG
200 MACCO BLVD.
SUGAR LAND, TX 77478
Assignment: 3
Reel/Frame:005916/0828   Pages: 6
Recorded: 11/25/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
CLARK, BRIAN
Exec Dt:
11/14/1991
2
BANNER, STEPHAN D.
Exec Dt:
11/14/1991
3
JUNDT, JACQUES
Exec Dt:
11/14/1991
4
LULING, MARTIN
Exec Dt:
11/19/1991
5
ROSTHAL, RICHARD A.
Exec Dt:
11/14/1991
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
A CORP. OF TEXAS
5000 GULF FREEWAY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5200705
NONE
07786138
Correspondence name and address
LETICIA V. SALAS
200 MACCO BLVD.
SUGAR LAND, TEXAS 77478
Assignment: 4
Reel/Frame:006312/0593   Pages: 3
Recorded: 11/02/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BONNER, STEPHEN D.
Exec Dt:
10/28/1992
2
ROSTHAL, RICHARD A.
Exec Dt:
10/28/1992
3
BAGERSH, ABDULLAH A.
Exec Dt:
10/28/1992
Assignee
1
SCHLUMBERGER TECHNOLOGY CORP.
5000 GULF FREEWAY
HOUSTON, TEXAS 77023
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5339037
NONE
07955101
Correspondence name and address
LETICIA V. SALAS
200 MACCO BLVD.
SUGAR LAND, TX 77478
Assignment: 5
Reel/Frame:007071/0964   Pages: 5
Recorded: 06/15/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BONNER, STEPHEN D.
Exec Dt:
06/14/1994
2
ROSTHAL, RICHARD A.
Exec Dt:
06/15/1994
3
BAGERSH, ABDULLAH A.
Exec Dt:
06/14/1994
4
LULING, MARTIN G.
Exec Dt:
06/15/1994
5
JUNDT, JACQUES A.
Exec Dt:
06/14/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
OLD QUARRY ROAD
RIDGEFIELD, CONNECTICUT 06877
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5463320
NONE
08259849
Correspondence name and address
LEONARD W. POJUNAS
SCHLUMBERGER-DOLL RESEARCH
PATENT DEPARTMENT
OLD QUARRY ROAD
RIDGEFIELD, CT 06877
Assignment: 6
Reel/Frame:010233/0912   Pages: 4
Recorded: 09/07/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MINERBO, GERALD N.
Exec Dt:
09/07/1999
2
ROSTHAL, RICHARD A.
Exec Dt:
09/07/1999
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6304086
NONE
09391310
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
ATTN: VICTOR SEGURA
200 GILLINGHAM LANE MD 200-9
SUGAR LAND, TEXAS 77478
Assignment: 7
Reel/Frame:010420/0836   Pages: 6
Recorded: 12/01/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CLARK, BRIAN
Exec Dt:
12/01/1999
2
ROSTHAL, RICHARD A.
Exec Dt:
12/01/1999
3
HOMAN, DEAN M.
Exec Dt:
12/01/1999
4
OMERAGIC, DZEVAT
Exec Dt:
12/01/1999
5
BONNER, STEPHEN D.
Exec Dt:
12/01/1999
6
CHESSER, SCOTT S.
Exec Dt:
11/30/1999
7
BARBER, THOMAS D.
Exec Dt:
12/01/1999
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6297639
NONE
09452576
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
VICTOR SEGURA
PATENT COUNSEL
200 GILLINGHAM LANE MD 200-9
SUGAR LAND, TEXAS 77478
Assignment: 8
Reel/Frame:010427/0044   Pages: 6
Recorded: 12/01/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CLARK, BRIAN
Exec Dt:
12/01/1999
2
ROSTHAL, RICHARD A.
Exec Dt:
12/01/1999
3
HOMAN, DEAN M.
Exec Dt:
12/01/1999
4
OMERAGIC, DZEVAT
Exec Dt:
12/01/1999
5
BONNER, STEPHEN D.
Exec Dt:
12/01/1999
6
CHESSER, SCOTT S.
Exec Dt:
11/30/1999
7
BARBER, THOMAS D.
Exec Dt:
12/01/1999
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6351127
NONE
09452660
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
VICTOR SEGURA
200 GILLINGHAM LANE MD 200-9
SUGAR LAND, TX 77478
Assignment: 9
Reel/Frame:011674/0705   Pages: 5
Recorded: 04/03/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROSTHAL, RICHARD A.
Exec Dt:
12/14/2000
2
HOMAN, DEAN M.
Exec Dt:
12/20/2000
3
BARBER, THOMAS D.
Exec Dt:
12/14/2000
4
BONNER, STEPHEN
Exec Dt:
12/14/2000
5
CLARK, BRIAN
Exec Dt:
01/04/2001
6
OMERAGIC, DZEVAT
Exec Dt:
12/14/2000
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
P.O. BOX 2175, HOUSTON, TEXAS 77252-2175
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6573722
US20020105332
09737891
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
VICTOR H. SEGURA
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Assignment: 10
Reel/Frame:011424/0109   Pages: 4
Recorded: 12/22/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
OMERAGIC, DZEVAT
Exec Dt:
12/21/2000
2
SEYDOUX, JEAN
Exec Dt:
12/22/2000
3
ROSTHAL, RICHARD A.
Exec Dt:
12/21/2000
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6566881
US20010004212
09746927
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
VICTOR H. SEGURA
PATENT COUNSEL
P.O. BOX 2175
HOUSTON, TX 77252-2175
Assignment: 11
Reel/Frame:012924/0094   Pages: 6
Recorded: 05/24/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HOMAN, DEAN M.
Exec Dt:
04/05/2002
2
HAZEN, GARY A.
Exec Dt:
04/10/2002
3
ROSTHAL, RICHARD A.
Exec Dt:
04/03/2002
4
SMITH, DAVID L.
Exec Dt:
04/03/2002
5
BARBER, THOMAS D.
Exec Dt:
04/10/2002
6
RAY, PAUL MICHAEL
Exec Dt:
04/10/2002
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
P.O. BOX 2175
110 SCHLUMBERGER DRIVE
HOUSTON, TEXAS 77252
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6690170
US20030184304
10113686
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
VICTOR H. SERGURA
110 SCHLUMBERGER DRIVE
P.O. BOX 2175
HOUSTON, TEXAS 77252-2175
Assignment: 12
Reel/Frame:013233/0339   Pages: 4
Recorded: 08/29/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROSTHAL, RICHARD A.
Exec Dt:
08/22/2002
2
SMITS, JAN WOUTER
Exec Dt:
08/22/2002
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478+
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6693430
US20030011371
10064853
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORP.
VICTOR H. SEGURA
110 SCHLUMBERGER DR.
SUGAR LAND, TX 77478
Assignment: 13
Reel/Frame:013561/0415   Pages: 3
Recorded: 12/09/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ROSTHAL, RICHARD A.
Exec Dt:
12/03/2002
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6937021
US20040108853
10314795
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
VICTOR H. SEGURA
PATENT COUNSEL
P. O. BOX 2175
HOUSTON, TX 77252-2175
Assignment: 14
Reel/Frame:014919/0472   Pages: 5
Recorded: 01/26/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HOMAN, DEAN M.
Exec Dt:
07/31/2003
2
ROSTHAL, RICHARD A.
Exec Dt:
07/31/2003
3
MINERBO, GERALD N.
Exec Dt:
07/30/2003
4
BARBER, THOMAS D.
Exec Dt:
07/31/2003
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
P.O. BOX 2175, HOUSTON TEXAS 77252-2175
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7414391
US20040113609
10616710
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
VICTOR H. SEGURA
110 SCHLUMBERGER DRIVE
P.O. BOX 2175
SUGAR LAND, TEXAS 77478
Assignment: 15
Reel/Frame:015558/0947   Pages: 8
Recorded: 11/28/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHEN, KUO-CHIANG
Exec Dt:
08/14/2003
2
SMITH, ROBERT C.
Exec Dt:
08/14/2003
3
HAZEN, GARY A.
Exec Dt:
08/07/2003
4
KIBBE, CHARLES
Exec Dt:
08/11/2003
5
ROSTHAL, RICHARD A.
Exec Dt:
08/07/2003
6
BARBER, THOMAS D.
Exec Dt:
08/14/2003
7
BONNER, STEPHEN D.
Exec Dt:
08/07/2003
8
OLIVER, DAVID T.
Exec Dt:
08/07/2003
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6933726
US20050030038
10604622
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
200 GILLINGHAM LANE
MD 200-9
SUGAR LAND, TX 77478
Assignment: 16
Reel/Frame:014273/0788   Pages: 6
Recorded: 01/14/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BARBER, THOMAS D.
Exec Dt:
01/12/2004
2
BONNER, STEPHEN D.
Exec Dt:
01/12/2004
3
HOMAN, DEAN M.
Exec Dt:
01/12/2004
4
MINERBO, GERALD N.
Exec Dt:
01/12/2004
5
ROSTHAL, RICHARD A.
Exec Dt:
01/12/2004
6
CHEN, KUO-CHIANG
Exec Dt:
01/12/2004
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7091877
US20050088181
10707813
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
200 GILLINGHAM LANE
MD 200-9
SUGAR LAND, TX 77478
Assignment: 17
Reel/Frame:017605/0282   Pages: 8
Recorded: 05/11/2006
Attorney Dkt #:24.0956
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
OMERAGIC, DZEVAT
Exec Dt:
04/18/2006
2
MINERBO, GERALD N.
Exec Dt:
05/04/2006
3
ROSTHAL, RICHARD A.
Exec Dt:
05/11/2006
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7536261
US20060253255
11279739
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
OFFICE OF IP COUNSEL MD 200-9
SUGAR LAND, TX 77478
Assignment: 18
Reel/Frame:020213/0124   Pages: 10
Recorded: 12/07/2007
Attorney Dkt #:23.0686
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CLARK, BRIAN
Exec Dt:
11/08/2007
2
MORRISON, FRANK
Exec Dt:
12/03/2007
3
NICHOLS, EDWARD
Exec Dt:
12/06/2007
4
ZHANG, HONG
Exec Dt:
11/27/2007
5
ROSTHAL, RICHARD A.
Exec Dt:
11/27/2007
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7795872
US20090091328
11868379
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TX 77478
Assignment: 19
Reel/Frame:021395/0163   Pages: 10
Recorded: 08/15/2008
Attorney Dkt #:23.0689
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MORRISON, FRANK
Exec Dt:
07/24/2008
2
NICHOLS, EDWARD
Exec Dt:
08/08/2008
3
ROSTHAL, RICHARD A.
Exec Dt:
06/25/2008
4
ZHANG, HONG
Exec Dt:
06/24/2008
5
DEPAVIA, LUIS E.
Exec Dt:
06/24/2008
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
MD200-9
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8326539
US20090281731
12117089
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
200 GILLINGHAM LANE
MD 200-9
SUGAR LAND, TX 77478
Assignment: 20
Reel/Frame:022647/0532   Pages: 7
Recorded: 05/06/2009
Attorney Dkt #:23.0702
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROSTHAL, RICHARD A.
Exec Dt:
04/14/2009
2
ZHANG, HONG
Exec Dt:
04/14/2009
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
MD200-9
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8362780
US20100231221
12405187
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
200 GILLINGHAM LANE
MD 200-9
SUGAR LAND, TX 77478
Assignment: 21
Reel/Frame:023542/0245   Pages: 7
Recorded: 11/19/2009
Attorney Dkt #:23.0692
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, HONG
Exec Dt:
10/22/2009
2
ROSTHAL, RICHARD A.
Exec Dt:
10/22/2009
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
MD200-9
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8310239
US20100134112
12581947
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
200 GILLINGHAM LANE
MD 200-9
SUGAR LAND, TX 77478
Assignment: 22
Reel/Frame:024261/0104   Pages: 7
Recorded: 04/20/2010
Attorney Dkt #:23.0713NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, HONG
Exec Dt:
01/28/2010
2
ROSTHAL, RICHARD A.
Exec Dt:
01/25/2010
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9035657
US20100259268
12705826
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE, MD 200-9
OFFICE OF IP COUNSEL
SUGAR LAND, TX 77478
Assignment: 23
Reel/Frame:024324/0113   Pages: 11
Recorded: 05/03/2010
Attorney Dkt #:23.0710
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GAO, GUZHONG
Exec Dt:
04/01/2010
2
MORRISON, H. FRANK
Exec Dt:
03/31/2010
3
ZHANG, HONG
Exec Dt:
01/28/2010
4
ROSTHAL, RICHARD A.
Exec Dt:
03/29/2010
5
ALUMBAUGH, DAVID
Exec Dt:
03/29/2010
6
LEVESQUE, CYRILLE
Exec Dt:
04/22/2010
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
MD200-9
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8614578
US20100321023
12641898
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
200 GILLINGHAM LANE
MD 200-9
SUGAR LAND, TX 77478
Assignment: 24
Reel/Frame:024327/0484   Pages: 11
Recorded: 05/03/2010
Attorney Dkt #:23.0711
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROSTHAL, RICHARD A.
Exec Dt:
03/29/2010
2
ZHANG, HONG
Exec Dt:
01/28/2010
3
LEVESQUE, CYRILLE
Exec Dt:
04/22/2010
4
GAO, GUOZHONG
Exec Dt:
04/01/2010
5
MORRISON, H. FRANK
Exec Dt:
03/31/2010
6
ALUMBAUGH, DAVID
Exec Dt:
03/29/2010
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
MD200-9
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8332191
US20110012620
12641994
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
200 GILLINGHAM LANE
MD 200-9
SUGAR LAND, TX 77478
Assignment: 25
Reel/Frame:026881/0550   Pages: 7
Recorded: 09/09/2011
Attorney Dkt #:23.0693
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, HONG
Exec Dt:
06/11/2011
2
ROSTHAL, RICHARD A.
Exec Dt:
08/31/2011
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9069097
US20110308789
13131219
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
10001 RICHMOND AVENUE
IP ADMINISTRATION CENTER OF EXCELLENCE
HOUSTON, TX 77042

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