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Patent Assignment Assignor Details
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Assignor Name : DUDLEY, TIMOTHY A.
Total Assignments: 15
Assignment: 1
Reel/Frame:008188/0538   Pages: 3
Recorded: 10/07/1996
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUDLEY, TIMOTHY A.
Exec Dt:
09/26/1996
2
SCARLETT, JOSEPH R.
Exec Dt:
09/26/1996
Assignee
1
WESTERN ATLAS INTERNATIONAL, INC.
P. O. BOX 1407, HOUSTON, TEXAS 77251-1407
10205 WESTHEIMER ROAD
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6044786
NONE
08702145
Correspondence name and address
WESTERN ATLAS INTERNATIONAL, INC.
E. EUGENE THIGPEN
10205 WESTHEIMER ROAD
HOUSTON, TEXAS 77042
Assignment: 2
Reel/Frame:009287/0669   Pages: 3
Recorded: 06/30/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUDLEY, TIMOTHY A.
Exec Dt:
06/16/1998
2
VANMETER, DARRELL F.
Exec Dt:
06/16/1998
3
MAYVILLE, JEFF N.
Exec Dt:
06/24/1998
Assignee
1
WESTERN ATLAS INTERNATIONAL, INC.
10205 WESTHEIMER ROAD
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6012406
NONE
09093175
Correspondence name and address
WESTERN ATLAS INTERNATIONAL, INC.
E. EUGENE THIGPEN
10205 WESTHEIMER ROAD
HOUSTON, TEXAS 77042
Assignment: 3
Reel/Frame:024047/0150   Pages: 10
Recorded: 03/08/2010
Attorney Dkt #:983-0013US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GAGLIARDI, JOSEPH R.
Exec Dt:
03/06/2010
2
RICE, SHAWN
Exec Dt:
03/08/2010
3
SCHNEIDER, CURT
Exec Dt:
03/08/2010
4
CUNKELMAN, JEFFREY W.
Exec Dt:
03/08/2010
5
DUDLEY, TIMOTHY A.
Exec Dt:
03/08/2010
6
LAMBERT, DALE
Exec Dt:
03/05/2010
7
BURNHAM, MIKE
Exec Dt:
03/08/2010
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BLVD., STE 400
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8593905
US20100226204
12719783
Correspondence name and address
WONG, CABELLO, LUTSCH, RUTHERFORD & BRUC
20333 SH 249 6TH FLOOR
HOUSTON, TX 77070
Assignment: 4
Reel/Frame:027183/0762   Pages: 9
Recorded: 11/07/2011
Attorney Dkt #:983-0013US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROBERTS, PHILLIP
Exec Dt:
11/03/2011
2
FISCHER, ROBERT
Exec Dt:
11/03/2011
3
ZINN, NOEL
Exec Dt:
11/03/2011
4
SCHNEIDER, CURT
Exec Dt:
11/01/2011
5
GAGLIARDI, JOSEPH R.
Exec Dt:
11/03/2011
6
RICE, SHAWN
Exec Dt:
11/01/2011
7
DUDLEY, TIMOTHY A.
Exec Dt:
11/01/2011
8
GRANT, JOHN
Exec Dt:
11/04/2011
9
SIMPSON, KEVIN
Exec Dt:
11/02/2011
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9354343
US20120134234
13113216
Correspondence name and address
WONG, CABELLO, LUTSCH, RUTHERFORD & BRUC
20333 SH 249 6TH FLOOR
HOUSTON, TX 77070
Assignment: 5
Reel/Frame:029963/0986   Pages: 8
Recorded: 03/11/2013
Attorney Dkt #:983-0013US2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GAGLIARDI, JOSEPH R.
Exec Dt:
03/10/2013
2
RICE, SHAWN
Exec Dt:
02/21/2013
3
DUDLEY, TIMOTHY A.
Exec Dt:
03/10/2013
4
SCHNEIDER, CURT
Exec Dt:
02/21/2013
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9535182
US20130182531
13793544
Correspondence name and address
WONG, CABELLO, LUTSCH, RUTHERFORD & BRUC
20333 SH 249 6TH FLOOR
HOUSTON, TX 77070
Assignment: 6
Reel/Frame:033383/0441   Pages: 3
Recorded: 07/24/2014
Attorney Dkt #:983-0026US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHNEIDER, CURT
Exec Dt:
07/23/2014
2
DUDLEY, TIMOTHY A.
Exec Dt:
07/23/2014
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BLVD, STE 400
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9766360
US20160025882
14339726
Correspondence name and address
WONG, CABELLO, LUTSCH, RUTHERFORD & BRUC
20333 SH 249 6TH FLOOR
HOUSTON, TX 77070
Assignment: 7
Reel/Frame:033383/0516   Pages: 3
Recorded: 07/24/2014
Attorney Dkt #:983-0026US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHNEIDER, CURT
Exec Dt:
07/23/2014
2
DUDLEY, TIMOTHY A.
Exec Dt:
07/23/2014
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BLVD, STE 400
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9389328
US20150101420
14339736
Correspondence name and address
WONG, CABELLO, LUTSCH, RUTHERFORD & BRUC
20333 SH 249 6TH FLOOR
HOUSTON, TX 77070
Assignment: 8
Reel/Frame:059012/0134   Pages: 3
Recorded: 02/15/2022
Attorney Dkt #:IONG/0038USC02 (112993)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHNEIDER, CURT
Exec Dt:
07/23/2014
2
DUDLEY, TIMOTHY A.
Exec Dt:
07/23/2014
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD
SUITE 400
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20200073003
16566632
Correspondence name and address
PATTERSON + SHERIDAN, LLP - ION GEOPHYSICAL CORP.
24 GREENWAY PLAZA
SUITE 1600
HOUSTON, TX 77046
Assignment: 9
Reel/Frame:041179/0957   Pages: 4
Recorded: 02/06/2017
Attorney Dkt #:P258272.US.02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUDLEY, TIMOTHY A.
Exec Dt:
01/27/2017
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400
HOUSTON, TEXAS 770422839
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10005523
US20170203815
15410038
Correspondence name and address
DORSEY & WHITNEY LLP
50 SOUTH SIXTH STREET, SUITE 1500
INTELLECTUAL PROPERTY PRACTICE GROUP
MINNEAPOLIS, MN 55402-1498
Assignment: 10
Reel/Frame:046829/0047   Pages: 4
Recorded: 09/10/2018
Attorney Dkt #:P258272.US.03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DUDLEY, TIMOTHY A.
Exec Dt:
01/27/2017
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400
HOUSTON, TEXAS 77042-2839
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10518847
US20180346076
16003270
Correspondence name and address
DORSEY & WHITNEY LLP
50 SOUTH SIXTH STREET, SUITE 1500
INTELLECTUAL PROPERTY PRACTICE GROUP
MINNEAPOLIS, MN 55402-1498
Assignment: 11
Reel/Frame:042822/0406   Pages: 5
Recorded: 06/27/2017
Attorney Dkt #:P258901.US.02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUDLEY, TIMOTHY A.
Exec Dt:
03/03/2017
2
SCHNEIDER, CURT
Exec Dt:
03/06/2017
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400
HOUSTON, TEXAS 77042-2839
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10254423
US20170293042
15482175
Correspondence name and address
DORSEY & WHITNEY LLP
50 SOUTH SIXTH STREET, SUITE 1500
INTELLECTUAL PROPERTY PRACTICE GROUP
MINNEAPOLIS, MN 55402-1498
Assignment: 12
Reel/Frame:047970/0941   Pages: 5
Recorded: 01/11/2019
Attorney Dkt #:P258901.US.03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUDLEY, TIMOTHY A.
Exec Dt:
03/03/2017
2
SCHNEIDER, CURT
Exec Dt:
03/06/2017
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400
HOUSTON, TEXAS 77042-2839
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11360231
US20190146113
16245999
Correspondence name and address
DORSEY & WHITNEY LLP
50 SOUTH SIXTH STREET, SUITE 1500
INTELLECTUAL PROPERTY PRACTICE GROUP
MINNEAPOLIS, MN 55402-1498
Assignment: 13
Reel/Frame:049775/0139   Pages: 8
Recorded: 07/17/2019
Attorney Dkt #:P269317.US.02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUDLEY, TIMOTHY A.
Exec Dt:
04/23/2018
2
BRETTWOOD, PAUL
Exec Dt:
04/26/2018
3
BURCH, DARRELL
Exec Dt:
04/25/2018
4
WAEGELIN, JEFF
Exec Dt:
05/02/2018
5
SWINFORD, JOHN
Exec Dt:
05/01/2018
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400
HOUSTON, TEXAS 77042-2839
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190293821
16361944
Correspondence name and address
DORSEY & WHITNEY LLP
50 SOUTH SIXTH STREET, SUITE 1500
INTELLECTUAL PROPERTY PRACTICE GROUP
MINNEAPOLIS, MN 55402-1498
Assignment: 14
Reel/Frame:049773/0950   Pages: 7
Recorded: 07/17/2019
Attorney Dkt #:P276525.US.02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUDLEY, TIMOTHY A.
Exec Dt:
03/11/2019
2
BURCH, DARRELL
Exec Dt:
04/03/2019
3
BRETTWOOD, PAUL
Exec Dt:
03/27/2019
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD, SUITE 400
HOUSTON, TEXAS 77042-2839
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11313985
US20190377097
16436874
Correspondence name and address
DORSEY & WHITNEY LLP
50 SOUTH SIXTH STREET, SUITE 1500
INTELLECTUAL PROPERTY PRACTICE GROUP
MINNEAPOLIS, MN 55402-1498
Assignment: 15
Reel/Frame:057620/0283   Pages: 10
Recorded: 09/28/2021
Attorney Dkt #:IONG/0086US (112352)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SWINFORD, JOHN MCCAULEY
Exec Dt:
03/05/2021
2
DUDLEY, TIMOTHY A.
Exec Dt:
12/12/2020
3
NAKKEN, PER BIRGER
Exec Dt:
02/04/2021
4
BUCH, FREDRIK
Exec Dt:
03/02/2021
Assignee
1
ION GEOPHYSICAL CORPORATION
2105 CITYWEST BOULEVARD
SUITE 400
HOUSTON, TEXAS 77042-2839
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11353614
US20180341035
15987241
Correspondence name and address
PATTERSON & SHERIDAN, LLP - ION GEOPHYSICAL
24 GREENWAY PLAZA, SUITE 1600
HOUSTON, TX 77046-2472

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Web interface last modified: August 25, 2017 v.2.6
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