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Patent Assignment Assignor Details
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Assignor Name : CHOI, HAN-SUN
Total Assignments: 11
Assignment: 1
Reel/Frame:012375/0266   Pages: 8
Recorded: 10/30/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SIEMS, LEE E.
Exec Dt:
10/13/2001
2
KNAPP, GREYSON
Exec Dt:
10/13/2001
3
MAIDA, JOHN L.
Exec Dt:
10/13/2001
4
CHOI, HAN-SUN
Exec Dt:
10/13/2001
5
KANDERS, REINIS
Exec Dt:
10/13/2001
6
O'BRIEN, TOM
Exec Dt:
10/13/2001
Assignee
1
INPUT/OUTPUT, INC.
12300 CHARLES E. SELECMAN DRIVE
STAFFORD, TEXAS 77477
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6591025
NONE
09524918
Correspondence name and address
HAYNES AND BOONE, LLP
TODD MATTINGLY
1000 LOUISIANA, SUITE 4300
HOUSTON TEXAS 77002-5012
Assignment: 2
Reel/Frame:020265/0391   Pages: 3
Recorded: 12/18/2007
Attorney Dkt #:ZIE-06-04
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CHOI, HAN-SUN
Exec Dt:
02/13/2007
Assignee
1
ZIEBEL US INC.
1704 RANKIN ROAD
HOUSTON, TEXAS 77073
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7564562
US20080204759
11678135
Correspondence name and address
RICHARD A. FAGIN
PO BOX 1247
RICHMOND, TX 77406-1247
Assignment: 3
Reel/Frame:029737/0032   Pages: 7
Recorded: 02/01/2013
Attorney Dkt #:1399-026.00
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SAMSON, ETIENNE M.
Exec Dt:
01/28/2013
2
MANDVIWALA, TASNEEM A.
Exec Dt:
01/28/2013
3
LEBLANC, MICHEL J.
Exec Dt:
01/28/2013
4
CHOI, HAN-SUN
Exec Dt:
01/28/2013
Assignee
1
HALLIBURTON ENERGY SERVICES, INC. ("HESI")
2600 S 2ND STREET
ATTN: JOHN WUSTENBERG, IP LAW DEPT
DUNCAN, OKLAHOMA 73536
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10241229
US20140222343
13756601
Correspondence name and address
KRUEGER ISELIN LLP (1399)
P O BOX 1906
CYPRESS, TX 77410-1906
Assignment: 4
Reel/Frame:030338/0066   Pages: 6
Recorded: 05/02/2013
Attorney Dkt #:1880.468US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHOI, HAN-SUN
Exec Dt:
05/02/2013
2
SAMSON, ETIENNE
Exec Dt:
05/02/2013
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BLVD
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9366691
US20140326860
13875707
Correspondence name and address
SCHWEGMAN, LUNDBERG, WOESSNER / HALLIBUR
P.O. BOX 2938
MINNEAPOLIS, MN 55402
Assignment: 5
Reel/Frame:038386/0528   Pages: 5
Recorded: 04/26/2016
Attorney Dkt #:063718.6264
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MANDVIWALA, TASNEEM
Exec Dt:
12/02/2013
2
CHOI, HAN-SUN
Exec Dt:
12/02/2013
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9952346
US20160274262
15032239
Correspondence name and address
BAKER BOTTS L.L.P.
910 LOUISIANA STREET, ONE SHELL PLAZA
HOUSTON, TX 77002
Assignment: 6
Reel/Frame:031915/0883   Pages: 4
Recorded: 01/08/2014
Attorney Dkt #:1399-050.00
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHOI, HAN-SUN
Exec Dt:
01/07/2014
2
SAMSON, ETIENNE
Exec Dt:
01/07/2014
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BLVD
HOUSTON, TEXAS 77072
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20160306073
14401090
Correspondence name and address
KRUEGER ISELIN LLP (1399)
P O BOX 1906
CYPRESS, TX 77410-1906
Assignment: 7
Reel/Frame:034168/0502   Pages: 4
Recorded: 11/13/2014
Attorney Dkt #:1399-050.01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHOI, HAN-SUN
Exec Dt:
01/07/2014
2
SAMSON, ETIENNE M.
Exec Dt:
01/07/2014
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PARKWAY E
HOUSTON, TEXAS 77032
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20160306073
14401090
Correspondence name and address
KRUEGER ISELIN LLP (1399)
P O BOX 1906
CYPRESS, TX 77410-1906
Assignment: 8
Reel/Frame:041544/0704   Pages: 4
Recorded: 03/10/2017
Attorney Dkt #:1399-083.03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHOI, HAN-SUN
Exec Dt:
10/13/2014
2
BARFOOT, DAVID A.
Exec Dt:
10/13/2014
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PARKWAY E.
HOUSTON, TEXAS 77410-1906
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10234311
US20170292861
15510567
Correspondence name and address
ISELIN LAW PLLC
P. O. BOX 1906
CYPRESS, TX 77410-1906
Assignment: 9
Reel/Frame:043916/0096   Pages: 4
Recorded: 10/20/2017
Attorney Dkt #:164.2014-IP-092574 U1 US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHOI, HAN-SUN
Exec Dt:
12/19/2014
2
JAASKELAINEN, MIKKO
Exec Dt:
12/19/2014
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PKWY. E.
HOUSTON, TEXAS 77032
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9909951
US20170328808
15524556
Correspondence name and address
GILLIAM IP PLLC
7200 NORTH MOPAC SUITE 440
AUSTIN, TX 78731
Assignment: 10
Reel/Frame:039166/0009   Pages: 8
Recorded: 07/15/2016
Attorney Dkt #:098273-0710
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHOI, HAN-SUN
Exec Dt:
04/27/2015
2
MANDVIWALA, TASNEEM A.
Exec Dt:
04/28/2015
3
BARFOOT, DAVID ANDREW
Exec Dt:
04/28/2015
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PARKWAY E.
HOUSTON, TEXAS 77032-3219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9864095
US20170146685
15111922
Correspondence name and address
MCDERMOTT WILL & EMERY LLP
500 NORTH CAPITOL STREET, NW
WASHINGTON, DC 20001
Assignment: 11
Reel/Frame:046718/0957   Pages: 6
Recorded: 08/28/2018
Attorney Dkt #:061429-1075198
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BARFOOT, DAVID ANDREW
Exec Dt:
12/10/2015
2
CHOI, HAN-SUN
Exec Dt:
12/01/2015
3
LAN, XINWEI
Exec Dt:
12/10/2015
Assignee
1
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PARKWAY E.
HOUSTON, TEXAS 77032-3219
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10871592
US20180313974
15755720
Correspondence name and address
KILPATRICK TOWNSEND & STOCKTON LLP
1100 PEACHTREE STREET NE
SUITE 2800
ATLANTA, GA 30309

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