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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 : DAO, BACH
Total Assignments: 8
Assignment: 1
Reel/Frame:011536/0009   Pages: 4
Recorded: 02/06/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIJN, JAN PIETER
Exec Dt:
01/05/2001
2
DAO, BACH
Exec Dt:
01/05/2001
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77020
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6457523
NONE
09612060
Correspondence name and address
HALLIBURTON ENERGY SERVICES
CRAIG W. RODDY
P.O. BOX 1431
DUNCAN, OK 73536-0440
Assignment: 2
Reel/Frame:011850/0048   Pages: 4
Recorded: 05/25/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIJN, JAN PIETER
Exec Dt:
05/14/2001
2
DAO, BACH
Exec Dt:
05/14/2001
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6405801
NONE
09732861
Correspondence name and address
HALLIBURTON ENERGY SERVICES
CRAIG W. RODDY
P.O. BOX 1431
DUNCAN, OK 73536-0440
Assignment: 3
Reel/Frame:012448/0635   Pages: 3
Recorded: 12/20/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DAO, BACH
Exec Dt:
11/22/2001
2
RIETJENS, MARCEL
Exec Dt:
11/22/2001
3
VIJN, JAN PIETER
Exec Dt:
11/22/2001
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6591909
NONE
10026027
Correspondence name and address
HALLIBURTON ENERGY SERVICES
CRAIG W. RODDY
2600 SOUTH SECOND STREET
DUNCAN, OK 73536-0440
Assignment: 4
Reel/Frame:012722/0035   Pages: 3
Recorded: 03/21/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIJN, JAN PIETER
Exec Dt:
03/14/2002
2
DAO, BACH
Exec Dt:
03/14/2002
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20030181542
10103069
Correspondence name and address
HALLIBURTON ENERGY SERVICES
CRAIG W. RODDY
2600 SOUTH SECOND STREET
DUNCAN, OK 73536-0440
Assignment: 5
Reel/Frame:012740/0848   Pages: 15
Recorded: 03/21/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BROTHER, LANCE E.
Exec Dt:
03/20/2002
2
KEENER, KRISTA L.
Exec Dt:
03/20/2002
3
BRADEN, JAMES A.
Exec Dt:
03/20/2002
4
VIJN, JAN PIETER
Exec Dt:
03/14/2002
5
DAO, BACH
Exec Dt:
03/14/2002
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6631766
US20030101912
10103449
Correspondence name and address
HALLIBURTON ENERGY SERVICES
CRAIG W. RODDY
2600 SOUTH SECOND STREET
DUNCAN, OK 73536-0440
Assignment: 6
Reel/Frame:012746/0079   Pages: 3
Recorded: 03/21/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIJN, JAN PIETER
Exec Dt:
03/14/2002
2
DAO, BACH
Exec Dt:
03/14/2002
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6644405
US20030177955
10102995
Correspondence name and address
HALLIBURTON ENERGY SERVICES
CRAIG W. RODDY
2600 SOUTH SECOND STREET
DUNCAN, OK 73536-0440
Assignment: 7
Reel/Frame:013260/0825   Pages: 4
Recorded: 08/30/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DAO, BACH
Exec Dt:
08/09/2002
2
BIEZEN, EWOUT
Exec Dt:
08/09/2002
3
VIJN, JAN PIETER
Exec Dt:
08/22/2002
4
PHAM, THIEN
Exec Dt:
08/22/2002
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6936574
US20040048751
10233038
Correspondence name and address
HALLIBURTON ENERGY SERVICES
CRAIG W. RODDY
2600 SOUTH SECOND STREET
DUNCAN, OK 73536-0440
Assignment: 8
Reel/Frame:015693/0847   Pages: 5
Recorded: 08/19/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DAO, BACH
Exec Dt:
07/16/2004
2
VERLANN, MARCO
Exec Dt:
07/02/2004
3
BOUWMEESTER, RON
Exec Dt:
07/02/2004
4
BIEZEN, EWOUT
Exec Dt:
07/02/2004
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLARIE BLVD.
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7091160
US20050288190
10875649
Correspondence name and address
HALLIBURTON ENERGY SERVICES
ROBERT A. KENT
2600 S. 2ND STREET
DUNCAN, OK 73536-0440

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