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Patent Assignment Assignor Details
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Assignor Name : XU, ZITAO
Total Assignments: 17
Assignment: 1
Reel/Frame:016520/0872   Pages: 3
Recorded: 04/29/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPICER, SEAN
Exec Dt:
04/29/2005
2
XU, ZITAO
Exec Dt:
04/29/2005
Assignee
1
LANDMARK GRAPHICS CORPORATION, A HALLIBURTON COMPANY
2101 CITYWEST BLVD.
BUILDING 2
HOUSTON, TEXAS 77042-3021
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7352369
US20050246130
11118027
Correspondence name and address
WILLIAM P. JENSEN
CRAIN CATON & JAMES
1401 MCKINNEY, 17TH FLOOR
HOUSTON, TEXAS 77010-4035
Assignment: 2
Reel/Frame:020399/0492   Pages: 3
Recorded: 01/23/2008
Attorney Dkt #:33849-198
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPICER, SEAN
Exec Dt:
04/29/2005
2
XU, ZITAO
Exec Dt:
04/29/2005
Assignee
1
LANDMARK GRAPHICS CORPORATION, A HALLIBURTON COMPANY
2101 CITYWEST BOULEVARD, BLDG 2
HOUSTON, TEXAS 77042-3021
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7576743
US20080129731
12017959
Correspondence name and address
WILLIAM P. JENSEN
1401 MCKINNEY, STE 1700
HOUSTON, TX 77010
Assignment: 3
Reel/Frame:032099/0450   Pages: 6
Recorded: 01/30/2014
Attorney Dkt #:33849-621
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHI, GENBAO
Exec Dt:
07/20/2010
2
XU, ZITAO
Exec Dt:
07/20/2010
3
YARUS, JEFFREY
Exec Dt:
07/21/2010
4
CHAMBERS, RICHARD L
Exec Dt:
07/20/2010
5
GUETTER, RANDY
Exec Dt:
07/26/2010
Assignee
1
LANDMARK GRAPHICS CORPORATION
2107 CITY WEST BLVD., BLDG. 2
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9436658
US20130138412
13816450
Correspondence name and address
CRAIN CATON & JAMES
1401 MCKINNEY, SUITE 1700
HOUSTON, TX 77010
Assignment: 4
Reel/Frame:042350/0226   Pages: 6
Recorded: 05/12/2017
Attorney Dkt #:061429-0973159
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHI, GENBAO
Exec Dt:
07/20/2010
2
XU, ZITAO
Exec Dt:
07/20/2010
3
YARUS, JEFFREY
Exec Dt:
07/21/2010
4
CHAMBERS, RICHARD L.
Exec Dt:
07/20/2010
5
GUETTER, RANDY
Exec Dt:
07/26/2010
Assignee
1
LANDMARK GRAPHICS CORPORATION
2107 CITY WEST BOULEVARD
BUILDING 2
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9817792
US20160350263
15233639
Correspondence name and address
KILPATRICK TOWNSEND & STOCKTON LLP
1100 PEACHTREE STREET
SUITE 2800
ATLANTA, GA 30309
Assignment: 5
Reel/Frame:027567/0948   Pages: 4
Recorded: 01/20/2012
Attorney Dkt #:33849-11
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 016520 FRAME 0872. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
SPICER, SEAN
Exec Dt:
01/05/2012
2
XU, ZITAO
Exec Dt:
05/23/2011
Assignee
1
LANDMARK GRAPHICS CORPORATION
P. O. BOX 42806
HOUSTON, TEXAS 77242
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7352369
US20050246130
11118027
Correspondence name and address
CRAIN CATON & JAMES
1401 MCKINNEY, SUITE 1700
ATTN: W. P. JENSEN
HOUSTON, TX 77010
Assignment: 6
Reel/Frame:027568/0015   Pages: 5
Recorded: 01/20/2012
Attorney Dkt #:33849-198
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 020399 FRAME 0492. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
SPICER, SEAN
Exec Dt:
01/05/2012
2
XU, ZITAO
Exec Dt:
05/23/2011
Assignee
1
LANDMARK GRAPHICS CORPORATION
P. O. BOX 42806
HOUSTON, TEXAS 77242
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7576743
US20080129731
12017959
Correspondence name and address
CRAIN CATON & JAMES
1401 MCKINNEY, SUITE 1700
ATTN: W. P. JENSEN
HOUSTON, TX 77010
Assignment: 7
Reel/Frame:030636/0585   Pages: 4
Recorded: 06/18/2013
Attorney Dkt #:2149-02309
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XU, ZITAO
Exec Dt:
05/25/2011
2
CHAMBERS, RICHARD L.
Exec Dt:
06/02/2011
Assignee
1
LANDMARK GRAPHICS CORPORATION
2107 CITY WEST BLVD., BLDG. 2
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8660797
US20130261978
13994958
Correspondence name and address
MARK E. SCOTT - CONLEY ROSE, P.C.
2508 ASHLEY WORTH BLVD., SUITE 200
AUSTIN, TX 78738
Assignment: 8
Reel/Frame:034753/0356   Pages: 4
Recorded: 01/20/2015
Attorney Dkt #:33849-861
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XU, ZITAO
Exec Dt:
06/19/2012
2
VISWANATHAN, VENKATRAMAN
Exec Dt:
06/20/2012
3
SENFTEN, SCOTT
Exec Dt:
06/20/2012
4
SEMBROSKI, CHARLES
Exec Dt:
06/19/2012
5
SUN, YA
Exec Dt:
06/19/2012
6
COLE, MARY
Exec Dt:
06/19/2012
Assignee
1
LANDMARK GRAPHICS CORPORATION
2107 CITY WEST BLVD., BLDG. 2
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9342923
US20150109295
14584294
Correspondence name and address
CRAIN CATON & JAMES
1401 MCKINNEY, SUITE 1700
HOUSTON, TX 77010
Assignment: 9
Reel/Frame:035450/0757   Pages: 4
Recorded: 04/20/2015
Attorney Dkt #:33849-860
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XU, ZITAO
Exec Dt:
06/19/2012
2
VISWANATHAN, VENKATRAMAN
Exec Dt:
06/20/2012
3
SENFTEN, SCOTT
Exec Dt:
06/20/2012
4
SEMBROSKI, CHARLES
Exec Dt:
06/19/2012
5
SUN, YA
Exec Dt:
06/19/2012
6
COLE, MARY
Exec Dt:
06/19/2012
Assignee
1
LANDMARK GRAPHICS CORPORATION
10200 BELLAIRE BLVD.
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9378587
US20150248784
14411619
Correspondence name and address
CRAIN CATON & JAMES
1401 MCKINNEY, SUITE 1700
HOUSTON, TX 77010
Assignment: 10
Reel/Frame:044333/0248   Pages: 4
Recorded: 12/07/2017
Attorney Dkt #:061429-0973143
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XU, ZITAO
Exec Dt:
06/19/2012
2
VISWANATHAN, VENKATRAMAN
Exec Dt:
06/20/2012
3
SENFTEN, SCOTT
Exec Dt:
06/20/2012
4
SEMBROSKI, CHARLES
Exec Dt:
06/19/2012
5
SUN, YA
Exec Dt:
06/19/2012
6
COLE, MARY
Exec Dt:
06/19/2012
Assignee
1
LANDMARK GRAPHICS CORPORATION
3000 N. SAM HOUSTON PARKWAY E.
HOUSTON, TEXAS 77032
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9892555
US20160155266
15019559
Correspondence name and address
KILPATRICK TOWNSEND & STOCKTON LLP
1100 PEACHTREE STREET
SUITE 2800
ATLANTA, GA 30309
Assignment: 11
Reel/Frame:037092/0125   Pages: 9
Recorded: 11/19/2015
Attorney Dkt #:1880.508US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XU, ZITAO
Exec Dt:
09/04/2013
2
SHI, GENBAO
Exec Dt:
09/05/2013
3
CHIEN, CHIKANG DAVID
Exec Dt:
09/05/2013
4
YARUS, JEFFREY
Exec Dt:
01/08/2014
5
CHAMBERS, RICHARD L.
Exec Dt:
09/05/2013
Assignee
1
LANDMARK GRAPHICS CORPORATION
2107 CITYWEST BLVD.
BLDG. 2
HOUSTON, TEXAS 77042
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9645280
US20160116636
14892470
Correspondence name and address
SCHWEGMAN LUNDBERG & WOESSNER / HALLIBUR
P.O. BOX 2938
MINNEAPOLIS, MN 55402
Assignment: 12
Reel/Frame:037802/0761   Pages: 9
Recorded: 02/23/2016
Attorney Dkt #:1880.578US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XU, ZITAO
Exec Dt:
02/12/2014
2
SHI, GENBAO
Exec Dt:
02/12/2014
3
CHIEN, CHIKANG DAVID
Exec Dt:
02/12/2014
4
YARUS, JEFFREY
Exec Dt:
04/21/2014
5
CHAMBERS, RICHARD L.
Exec Dt:
01/10/2014
Assignee
1
LANDMARK GRAPHICS CORPORATION
2107 CITYWEST BLVD. BLDG. 2
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10345482
US20160216403
14913883
Correspondence name and address
SCHWEGMAN LUNDBERG & WOESSNER / HALLIBUR
P.O. BOX 2938
MINNEAPOLIS, MN 55402
Assignment: 13
Reel/Frame:039031/0274   Pages: 12
Recorded: 06/28/2016
Attorney Dkt #:001001.2014-IP-096412 US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XU, ZITAO
Exec Dt:
07/02/2015
2
CHIEN, CHIKANG DAVID
Exec Dt:
07/06/2015
3
YARUS, JEFFREY MARC
Exec Dt:
07/06/2015
4
SHI, GENBAO
Exec Dt:
07/06/2015
5
CALLEGARI, ANDRES CESAR
Exec Dt:
07/06/2015
Assignee
1
LANDMARK GRAPHICS CORPORATION
10200 BELLAIRE BOULEVARD, BUILDING 2
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10319140
US20170148209
15108704
Correspondence name and address
HOWARD L. SPEIGHT
12610 TRAIL HOLLOW DRIVE
HOUSTON, TX 77024
Assignment: 14
Reel/Frame:056429/0360   Pages: 10
Recorded: 06/03/2021
Attorney Dkt #:C-085126-616760
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XU, ZITAO
Exec Dt:
02/26/2016
2
SHI, GENBAO
Exec Dt:
12/10/2020
3
CHIEN, CHIKANG DAVID
Exec Dt:
12/27/2016
4
GEHIN, MAURICE
Exec Dt:
06/27/2018
5
CALLEGARI, ANDRES CESAR
Exec Dt:
05/29/2020
6
YARUS, JEFFREY MARC
Exec Dt:
08/01/2017
Assignee
1
LANDMARK GRAPHICS CORPORATION
3000 N. SAM HOUSTON PARKWAY E.
HOUSTON, TEXAS 77032
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10922782
US20200043131
16340029
Correspondence name and address
POLSINELLI PC
1000 LOUISIANA ST.
SUITE 64
HOUSTON, TX 77002
Assignment: 15
Reel/Frame:056432/0036   Pages: 10
Recorded: 06/03/2021
Attorney Dkt #:C-081526-559755
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XU, ZITAO
Exec Dt:
02/26/2016
2
SHI, GENBAO
Exec Dt:
12/10/2020
3
CHIEN, CHIKANG DAVID
Exec Dt:
12/27/2016
4
GEHIN, MAURICE
Exec Dt:
06/27/2018
5
CALLEGARI, ANDRES CESAR
Exec Dt:
05/29/2020
6
YARUS, JEFFREY MARC
Exec Dt:
08/01/2017
Assignee
1
LANDMARK GRAPHICS CORPORATION
3000 N. SAM HOUSTON PARKWAY E.
HOUSTON, TEXAS 77032
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20200043131
16340029
Correspondence name and address
POLSINELLI PC
1000 LOUISIANA ST.
SUITE 64
HOUSTON, TX 77002
Assignment: 16
Reel/Frame:043273/0525   Pages: 10
Recorded: 08/11/2017
Attorney Dkt #:098273-1854
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHI, GENBAO
Exec Dt:
05/17/2016
2
YARUS, JEFFFREY MARC
Exec Dt:
06/01/2016
3
XU, ZITAO
Exec Dt:
05/25/2016
4
GEHIN, MAURICE
Exec Dt:
05/10/2016
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PARKWAY E.
HOUSTON, TEXAS 77032-3219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10628552
US20180336309
15543230
Correspondence name and address
MCDERMOTT WILL & EMERY LLP
4 PARK PLAZA
1700
IRVINE, CA 92614-2559
Assignment: 17
Reel/Frame:044270/0014   Pages: 12
Recorded: 08/31/2017
Attorney Dkt #:098273-1854
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE SECOND INVENTOR FIRST NAME PREVIOUSLY RECORDED AT REEL: 043273 FRAME: 0525. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
SHI, GENBAO
Exec Dt:
05/17/2016
2
YARUS, JEFFREY MARC
Exec Dt:
06/01/2016
3
XU, ZITAO
Exec Dt:
05/25/2016
4
GEHIN, MAURICE
Exec Dt:
05/10/2016
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PARKWAY E.
HOUSTON, TEXAS 77032-3219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10628552
US20180336309
15543230
Correspondence name and address
MARK J. ITRI
MCDERMOTT WILL & EMERY LLP
4 PARK PLAZA, SUITE 1700
IRVINE, CA 92614-2559

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