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Patent Assignment Assignor Details
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Assignor Name : DOWELL SCHLUMBERGER INCORPORATED
Total Assignments: 17
Assignment: 1
Reel/Frame:006375/0387   Pages: 4
Recorded: 01/13/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/11/1992
Assignee
1
PIPE REHAB INTERNATIONAL, INC.
841 HOYLE AVENUE
DALLAS, TEXAS
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5094795
NONE
07513904
Correspondence name and address
BLUM KAPALAN
1120 AVE. OF THE AMERICAS
NEW YORK, NY. 10036
Assignment: 2
Reel/Frame:006375/0391   Pages: 4
Recorded: 01/13/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/11/1992
Assignee
1
PIPE REHAB INTERNATIONAL, INC.
841 HOYLE AVENUE
DALLAS, TEXAS
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5094795
NONE
07513904
Correspondence name and address
BLUM KAPLAN
1120 AVE. OF THE AMERICAS
NEW YORK, NY. 10036
Assignment: 3
Reel/Frame:006387/0070   Pages: 4
Recorded: 01/13/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/11/1992
Assignee
1
PIPE REHAB INTERNATIONAL, INC.
841 HOYLE AVENUE
DALLAS, TEXAS
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5244505
NONE
07839993
Correspondence name and address
BLUM KAPLAN
MICHAEL I. WOLFSON
1120 AVENUE OF THE AMERICAS
NEW YORK, NEW YORK 10036
Assignment: 4
Reel/Frame:006387/0074   Pages: 4
Recorded: 01/13/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/11/1992
Assignee
1
PIPE REHAB INTERNATIONAL, INC.
841 HOYLE AVENUE
DALLAS, TEXAS 75227
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5090079
NONE
07553732
Correspondence name and address
BLUM KAPLAN
MICHAEL I. WOLFSON
1120 AVENUE OF THE AMERICAS
NEW YORK, NEW YORK 10036
Assignment: 5
Reel/Frame:007846/0914   Pages: 4
Recorded: 03/06/1996
Conveyance: RE-RECORDATION OF ASSIGNMENT
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/11/1992
Assignee
1
PIPE REHAB INTERNATIONAL, INC.
1770 KIRBY PARKWAY, SUITE 300
MEMPHIS, TENNESSEE 38138
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5094795
NONE
07513904
Correspondence name and address
COWAN, LIEBOWITZ & LATMAN, P.C.
MICHAEL L. WOLFSON
1133 AVENUE OF THE AMERICAS
NEW YORK, NY 10036-6799
Assignment: 6
Reel/Frame:006878/0796   Pages: 5
Recorded: 03/07/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/14/1993
Assignee
1
HYDROCHEM INDUSTRIAL SERVICES, INC.
1145 HIGHWAY 90-A
MISSOURI CITY, TEXAS 77459
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
4003393
NONE
05332324
 
4220550
NONE
05967047
 
4256511
NONE
06075914
 
4310435
NONE
06100794
 
4254559
NONE
06122536
 
4289639
NONE
06193878
 
4430128
NONE
06213280
 
4473408
NONE
06338928
 
4637899
NONE
06574837
 
4537700
NONE
06593074
 
4623399
NONE
06697615
 
4636327
NONE
06728448
 
4629570
NONE
06756914
 
4734259
NONE
06801123
 
4971775
NONE
07068472
 
4822494
NONE
07069375
 
4853014
NONE
07078127
 
4921546
NONE
07219647
 
4922937
NONE
07219763
 
4861386
NONE
07269110
 
4880447
NONE
07275229
 
5180500
NONE
07333165
 
5127961
NONE
07628166
 
5197324
NONE
07835695
Correspondence name and address
CASSELL & STONE, L.L.P.
MICHAEL P. STEINDLER
5956 SHERRY LANE, SUITE 1415
DALLAS, TEXAS 75225
Assignment: 7
Reel/Frame:006889/0895   Pages: 4
Recorded: 03/07/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
02/07/1994
Assignee
1
HYDROCHEM INDUSTRIAL SERVICES, INC.
1145 HIGHWAY 90-A
MISSOURI CITY, TEXAS 77459
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
4133773
NONE
05819748
 
4443268
NONE
06320815
 
4543131
NONE
06591080
 
4849027
NONE
07040544
Correspondence name and address
MR. MICHAEL P. STEINDLER
CASSELL & STONE, L.L.P.
5956 SHERRY LANE, SUITE 1415
DALLAS, TX 75225
Assignment: 8
Reel/Frame:008602/0662   Pages: 11
Recorded: 06/26/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/20/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5681796
NONE
08283129
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
JOHN E. VICK, JR.
PATENT COUNSEL, DOWELL DIVISION
P.O. BOX 4610
HOUSTON, TX 77210-4610
Assignment: 9
Reel/Frame:008486/0747   Pages: 5
Recorded: 05/07/1997
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/22/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5633220
NONE
08300256
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
JOHN E. VICK, JR.
PATENT COUNSEL, DOWELL DIVISION
P.O. BOX 4610
HOUSTON, TX 77210-4610
Assignment: 10
Reel/Frame:008506/0239   Pages: 5
Recorded: 05/12/1997
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/22/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
P. O. BOX 4610, HOUSTON, TEXAS 77210-4610
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5658859
NONE
08594108
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
DOWELL DIVISION
JOHN E. VICK, JR.
110 SCHLUMBERGER DRIVE
SUGAR LAND, TX 77478
Assignment: 11
Reel/Frame:008649/0441   Pages: 7
Recorded: 08/15/1997
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/22/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5658861
NONE
08439054
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
JOHN E. VIDT JR.
110 SCHLUMBERGER DRIVE
SUGAR LAND, TX 77478
Assignment: 12
Reel/Frame:008665/0867   Pages: 5
Recorded: 08/18/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/22/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5699996
NONE
08619786
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
JOHN E. VICK, JR.
PATENT COUNSEL
110 SCHLUMBERGER DRIVE
SUGAR LAND, TX 77478
Assignment: 13
Reel/Frame:010240/0354   Pages: 5
Recorded: 11/29/1999
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/22/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5972849
NONE
08553964
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
ROBIN C. NAVA
110 SCHLUMBERGER DRIVE, MD1
SUGAR LAND, TX 77478
Assignment: 14
Reel/Frame:010498/0350   Pages: 5
Recorded: 12/27/1999
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/22/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6306799
NONE
07889543
Correspondence name and address
SCHLUMBERGER TECHNOLOGY CORPORATION
ROBIN C. NAVA
110 SCHLUMBERGER DRIVE, MD1
SUGAR LAND, TEXAS 77478
Assignment: 15
Reel/Frame:021617/0534   Pages: 5
Recorded: 10/02/2008
Attorney Dkt #:PA-00382US
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/31/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5597783
NONE
08433958
Correspondence name and address
M-I L.L.C. LEGAL DEPT., IP GROUP
5950 NORTH COURSE DRIVE
HOUSTON, TX 77072
Assignment: 16
Reel/Frame:021617/0577   Pages: 5
Recorded: 10/02/2008
Attorney Dkt #:PA-00380US
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/31/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5669456
NONE
08673478
Correspondence name and address
M-I L.L.C. LEGAL DEPT., IP GROUP
5950 NORTH COURSE DRIVE
HOUSTON, TX 77072
Assignment: 17
Reel/Frame:021617/0587   Pages: 5
Recorded: 10/02/2008
Attorney Dkt #:PA-00381US
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOWELL SCHLUMBERGER INCORPORATED
Exec Dt:
12/31/1994
Assignee
1
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5637556
NONE
08433959
Correspondence name and address
M-I L.L.C. LEGAL DEPT., IP GROUP
5950 NORTH COURSE DRIVE
HOUSTON, TX 77072

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