skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : CHANG, SHU-KONG
Total Assignments: 16
Assignment: 1
Reel/Frame:004385/0571   Pages: 2
Recorded: 02/11/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
KURKJIAN, ANDREW L.
Exec Dt:
02/08/1985
2
CHANG, SHU-KONG
Exec Dt:
02/08/1985
3
EVERHART, ANN H.
Exec Dt:
02/08/1985
Assignee
1
SCHLUMBERGER TECHOLOGY CORPORATION
277 PARK AVENUE
NEW YORK, NEW YORK 10172
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4703460
NONE
06687074
Correspondence name and address
DAVID H. CARROLL
SCHLUMBERGER-DOLL RESEARCH
PAT. DEPT.
OLD QUARRY RD.
RIDGEFIELD, CT 06877-4108
Assignment: 2
Reel/Frame:004385/0573   Pages: 2
Recorded: 02/11/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
KURKJIAN, ANDREW L.
Exec Dt:
02/08/1985
2
CHANG, SHU-KONG
Exec Dt:
02/08/1985
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
277 PARK AVENUE
NEW YORK, NEW YORK 10172
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4698792
NONE
06687075
Correspondence name and address
DAVID H. CARROLL
SCHLUMBERGER-DOLL RESEARCH
PAT. DEPT.
OLD QUARRY RD.
RIDGEFIELD, CT 06877-4108
Assignment: 3
Reel/Frame:004654/0668   Pages: 2
Recorded: 01/16/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
CHANG, SHU-KONG
Exec Dt:
01/09/1987
2
FROELICH, BENOIT G.
Exec Dt:
01/09/1987
3
VARGA, GYULA
Exec Dt:
01/09/1987
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION, A CORP OF TX
277 PARK AVE.
NEW YORK, NEW YORK 10172
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4951267
NONE
06919293
Correspondence name and address
SCHLUMBERGER-DOLL RESEARCH
ATTN: PATENT COUNSEL,
OLD QUARRY ROAD
RIDGEFIELD, CT 06877-4108
Assignment: 4
Reel/Frame:004826/0931   Pages: 2
Recorded: 11/19/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
CHANG, SHU-KONG
Exec Dt:
11/09/1987
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION, A CORP. OF TEXAS
5000 GULF FREEWAY P.O. BOX 2175
HOUSTON, TEXAS 77023
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4850450
NONE
07122978
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
ATTN: PATENT COUNSEL
P.O. BOX 2175
HOUSTON, TX 77001
Assignment: 5
Reel/Frame:005771/0232   Pages: 3
Recorded: 07/19/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
CHANG, SHU-KONG
Exec Dt:
06/28/1991
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
AC ORPORATION OF TEXAS
277 PARK AVE.,
NEW YORK, NEW YORK 10172
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5309404
NONE
07722321
Correspondence name and address
MARC D. FOODMAN
SCHLUMBERGER-DOLL RESEARCH
OLD QUARRY RD.
RIDGEFIELD, CT 06877-4108
Assignment: 6
Reel/Frame:005885/0549   Pages: 3
Recorded: 10/16/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
CHANG, SHU-KONG
Exec Dt:
10/16/1991
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
A CORPORATION OF TEXAS
277 PARK AVE.,
NEW YORK, NEW YORK 10172
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5265067
NONE
07777041
Correspondence name and address
PATENT DEPARTMENT
SCHLUMBERGER-DOLL RESEARCH
OLD QUARRY ROAD
RIDGEFIELD, CT 06877-4108
Assignment: 7
Reel/Frame:006874/0459   Pages: 3
Recorded: 02/28/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHENOY, RAMACHANDRA
Exec Dt:
12/20/1993
2
CHANG, SHU-KONG
Exec Dt:
12/20/1993
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
OLD QUARRY ROAD
RIDGEFIELD, CONNECTICUT 06877-4108
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5594706
NONE
08170567
Correspondence name and address
SCHLUMBERGER-DOLL RESEARCH
LEONARD W. JOJUNAS, ESQ.
OLD QUARRY ROAD
RIDGEFIELD, CT 06877-4108
Assignment: 8
Reel/Frame:007022/0230   Pages: 7
Recorded: 06/06/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KOSTEK, SERGIO
Exec Dt:
05/09/1994
2
CHANG, SHU-KONG
Exec Dt:
06/02/1994
3
MCDANIEL, GORDON L.
Exec Dt:
05/19/1994
4
PLONA, THOMAS
Exec Dt:
05/18/1994
5
RANDALL, CURTIS
Exec Dt:
06/01/1994
6
MASSON, JEAN-PIERRE
Exec Dt:
06/02/1994
7
MAYES, JAMES C.
Exec Dt:
06/02/1994
8
HSU, KAI
Exec Dt:
06/02/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
5000 GULF FREEWAY
HOUSTON, TEXAS 77023
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5796677
NONE
08235625
Correspondence name and address
PATENT COUNSEL
ANADRILL SCHLUMBERGER
200 GILLINGHAM LANE
SUGAR LAND, TEXAS 77478
Assignment: 9
Reel/Frame:008064/0044   Pages: 4
Recorded: 07/29/1996
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ARON, JEFFREY B.
Exec Dt:
07/11/1996
2
CHANG, SHU-KONG
Exec Dt:
07/11/1996
3
KLASEL, DONALD A.
Exec Dt:
07/11/1996
4
LAU, TING M.
Exec Dt:
07/11/1996
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5753812
NONE
08569027
Correspondence name and address
PATENT COUNSEL
ANADRILL SCHLUMBERGER
200 GILLINGHAM LANE
SUGAR LAND, TX 77478
Assignment: 10
Reel/Frame:009013/0799   Pages: 3
Recorded: 11/28/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SEZGINER, ABDURRAHMAN
Exec Dt:
07/17/1997
2
CHANG, SHU-KONG
Exec Dt:
07/17/1997
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
OLD QUARRY ROAD
RIDGEFIELD, CONNECTICUT 06877
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5977768
NONE
08880343
Correspondence name and address
SCHLUMBERGER-DOLL RESEARCH
KEITH G. W. SMITH
INTELLECTUAL PROPERTY LAW DEPT.
OLD QUARRY ROAD
RIDGEFIELD, CT 06877-4108
Assignment: 11
Reel/Frame:009251/0047   Pages: 5
Recorded: 06/12/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
POITZSCH, MARTIN E.
Exec Dt:
06/08/1998
2
SPEIER, PETER
Exec Dt:
06/08/1998
3
GANESAN, KRISHNAMURTHY
Exec Dt:
06/08/1998
4
CHANG, SHU-KONG
Exec Dt:
06/08/1998
5
GOSWAMI, JAIDEVA C.
Exec Dt:
06/08/1998
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
P.O. BOX 2175
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6255817
NONE
09094201
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
BRIGITTE L. JEFFERY
PATENT COUNSEL
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Assignment: 12
Reel/Frame:009993/0722   Pages: 4
Recorded: 06/01/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DOREL, ALAIN P.
Exec Dt:
05/27/1999
2
CHANG, SHU-KONG
Exec Dt:
05/27/1999
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6109372
NONE
09268596
Correspondence name and address
IP LAW & CONTRACTS DEPARTMENT
STEVEN L. CHRISTIAN
200 GILLINGHAM LANE
SUGAR LAND, TX 77478
Assignment: 13
Reel/Frame:018903/0612   Pages: 9
Recorded: 02/14/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GARCIA-OSUNA, FERNANDO
Exec Dt:
07/25/2006
2
IKEGAMI, TORU
Exec Dt:
08/07/2006
3
PISTRE, VIVIAN
Exec Dt:
08/22/2006
4
CHANG, SHU-KONG
Exec Dt:
02/14/2007
5
MORIKAMI, YOKO
Exec Dt:
08/07/2006
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
MD 1
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7554882
US20070127311
11309153
Correspondence name and address
INTELLECTUAL PROPERTY LAW
2-2-1 FUCHINOBE, SAGAMIHARA-SHI
KANAGAWA-KEN 229-0006 JAPAN
Assignment: 14
Reel/Frame:020426/0916   Pages: 9
Recorded: 01/21/2008
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WU, PETER T.
Exec Dt:
02/20/2007
2
CAMPANAC, PIERRE
Exec Dt:
02/14/2007
3
CHANG, SHU-KONG
Exec Dt:
04/10/2007
4
THOMPSON, JAMES G.L.
Exec Dt:
02/15/2007
5
SINHA, ANSHUMAN
Exec Dt:
03/24/2007
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE, MD 1
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8238194
US20070097786
11566600
Correspondence name and address
INTELLECTUAL PROPERTY LAW
SCHLUMBERGER K.K.
2-2-1 FUCHINOBE, SAGAMIHARA-SHI
KANAGAWA-KEN 229-0006 JAPAN
Assignment: 15
Reel/Frame:020329/0074   Pages: 9
Recorded: 01/06/2008
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VALERO, HENRI-PIERRE
Exec Dt:
10/01/2007
2
CHANG, SHU-KONG
Exec Dt:
09/28/2007
3
DEGRANGE, JEAN-MARIE
Exec Dt:
10/04/2007
4
PISTRE, VIVIAN
Exec Dt:
10/09/2007
5
SINGH, KARAN
Exec Dt:
10/04/2007
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
MD 1
SUGAR LAND, TEXAS 774783
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7603238
US20090093961
11867663
Correspondence name and address
INTELLECTUAL PROPERTY LAW
SCHLUMBERGER K.K.
2-2-1 FUCHINOBE, SAGAMIHARA-SHI
KANAGAWA-KEN 229-0006 JAPAN
Assignment: 16
Reel/Frame:020594/0617   Pages: 4
Recorded: 03/03/2008
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PLONA, THOMAS J.
Exec Dt:
02/20/2008
2
CHANG, SHU-KONG
Exec Dt:
01/29/2008
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
200 GILLINGHAM LANE
MD 1
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7643374
US20080144439
12011158
Correspondence name and address
SCHLUMBERGER K.K.
INTELLECTUAL PROPERTY
2-2-1 FUCHINOBE, SAGMIHARA-SHI
KANAGAWA-KEN 229-0006 JAPAN

Search Results as of: 04/28/2024 08:45 AM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT