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Patent Assignment Assignor Details
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Assignor Name : RADTKE, RICHARD J.
Total Assignments: 11
Assignment: 1
Reel/Frame:012485/0116   Pages: 4
Recorded: 10/26/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SLOAN, W. ROBERT
Exec Dt:
10/26/2001
2
EVANS, MICHAEL
Exec Dt:
10/26/2001
3
ADOLPH, ROBERT A.
Exec Dt:
10/26/2001
4
RADTKE, RICHARD J.
Exec Dt:
10/26/2001
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
P.O. BOX 2175
HOUSTON, TEXAS 77252
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6648083
US20020096363
10040701
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
VICTOR H. SEGURA
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Assignment: 2
Reel/Frame:013431/0228   Pages: 5
Recorded: 10/28/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
EVANS, MICHAEL L.
Exec Dt:
09/05/2002
2
ORTENZI, LUCA
Exec Dt:
09/18/2002
3
RADTKE, RICHARD J.
Exec Dt:
10/04/2002
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6903330
US20030080288
10065303
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
ATTN: PATENT COUNSEL
110 SCHLUMBERGER DRIVE
SUGAR LAND, TX 77478
Assignment: 3
Reel/Frame:013772/0922   Pages: 6
Recorded: 02/24/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RADTKE, RICHARD J.
Exec Dt:
01/03/2003
2
EVANS, MICHAEL L.
Exec Dt:
01/03/2003
3
ADOLPH, ROBERT A.
Exec Dt:
01/03/2003
4
VILDE, LOIC
Exec Dt:
01/07/2003
5
WIJEYESEKERA, NIHAL IAN
Exec Dt:
01/08/2003
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6944548
US20040128073
10331747
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
200 GILLINGHAM LANE
MD 200-9
SUGAR LAND, TX 77478
Assignment: 4
Reel/Frame:016388/0488   Pages: 4
Recorded: 03/25/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RADTKE, RICHARD J.
Exec Dt:
03/25/2005
2
SIEFKER-RADTKE, ARLENE O.
Exec Dt:
03/08/2005
3
STOLLER, CHRISTIAN
Exec Dt:
03/10/2005
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7339161
US20060186328
10906562
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
200 GILLINGHAM LANE
MD 200-9
SUGAR LAND, TX 77478
Assignment: 5
Reel/Frame:017302/0077   Pages: 8
Recorded: 03/14/2006
Attorney Dkt #:20.3021NP2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RADTKE, RICHARD J.
Exec Dt:
02/20/2006
2
EVANS, MICHAEL
Exec Dt:
03/14/2006
3
FLAUM, CHARLES
Exec Dt:
02/20/2006
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7642507
US20060192096
11307632
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TX 77478
Assignment: 6
Reel/Frame:019657/0877   Pages: 8
Recorded: 08/07/2007
Attorney Dkt #:20.3065
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RADTKE, RICHARD J.
Exec Dt:
07/31/2007
2
PERCHONOK, ROBERT
Exec Dt:
07/31/2007
3
MCCOY, MATTHEW
Exec Dt:
08/06/2007
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8244473
US20090037111
11830596
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TX 77478
Assignment: 7
Reel/Frame:023752/0019   Pages: 10
Recorded: 01/08/2010
Attorney Dkt #:20.3181
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RADTKE, RICHARD J.
Exec Dt:
10/29/2009
2
DEL CAMPO, CHRISTOPHER SCOTT
Exec Dt:
11/06/2009
3
CLINTON, DALE WAYNE
Exec Dt:
01/07/2010
4
HE, QINGYAN
Exec Dt:
10/27/2009
5
SAMPA, AUGDON JOHN
Exec Dt:
11/02/2009
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
MD200-9
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8327683
US20100180662
12603902
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
200 GILLINGHAM LANE
MD 200-9
SUGAR LAND, TX 77478
Assignment: 8
Reel/Frame:036223/0306   Pages: 11
Recorded: 07/31/2015
Attorney Dkt #:24.1030-US-PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DOWLA, NAJMUD
Exec Dt:
06/01/2011
2
RASMUS, JOHN C.
Exec Dt:
04/29/2011
3
NAYAN, ABHIJEET
Exec Dt:
07/10/2011
4
KIM, TAESOO
Exec Dt:
06/02/2011
5
RADTKE, RICHARD J.
Exec Dt:
04/27/2011
6
EVANS, MICHAEL
Exec Dt:
07/27/2011
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9175559
US20110290011
13122127
Correspondence name and address
STEPHANIE LONG
10001 RICHMOND AVENUE
OFFICE 4758
HOUSTON, TX 77042
Assignment: 9
Reel/Frame:027382/0243   Pages: 10
Recorded: 12/14/2011
Attorney Dkt #:24.0990
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PRAKASH, ANKUR
Exec Dt:
10/20/2011
2
RASMUS, JOHN C.
Exec Dt:
11/02/2011
3
RADTKE, RICHARD J.
Exec Dt:
10/19/2011
4
EVANS, MICHAEL
Exec Dt:
12/12/2011
5
DOLMAN, LEE
Exec Dt:
10/19/2011
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8965703
US20130085675
13251769
Correspondence name and address
SCHLUMBERGER OILFIELD SERVICES
10001 RICHMOND AVENUE
IP ADMINISTRATION CENTER OF EXCELLENCE
HOUSTON, TX 77042
Assignment: 10
Reel/Frame:028293/0459   Pages: 9
Recorded: 05/31/2012
Attorney Dkt #:IS11.0206
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
STOLLER, CHRISTIAN
Exec Dt:
05/01/2012
2
RADTKE, RICHARD J.
Exec Dt:
04/24/2012
3
EASON, RAJU M.
Exec Dt:
04/19/2012
4
FRICKE, SCOTT H.
Exec Dt:
04/24/2012
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8927923
US20120235030
13419303
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION, HFE
10001 RICHMOND AVENUE
IP ADMINISTRATION CENTER OF EXCELLENCE
HOUSTON, TX 77042
Assignment: 11
Reel/Frame:038231/0875   Pages: 8
Recorded: 04/08/2016
Attorney Dkt #:IS15.1360-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RADTKE, RICHARD J.
Exec Dt:
03/28/2016
2
STOLLER, CHRISTIAN
Exec Dt:
03/28/2016
3
HACKBART, MICHAEL D.
Exec Dt:
03/28/2016
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9696455
US20170139075
14940048
Correspondence name and address
KRISTINE DUMAS-SCARBER
10001 RICHMOND AVENUE
ROOM 4720
HOUSTON, TX 77042

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