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Patent Assignment Assignor Details
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Assignor Name : JO, BYOUNG CHEON
Total Assignments: 9
Assignment: 1
Reel/Frame:008437/0974   Pages: 6
Recorded: 02/13/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LEE, BYUNG HYUNG
Exec Dt:
12/13/1996
2
JUNG, KWANG SIK
Exec Dt:
12/13/1996
3
KIM, YOUNG WOOK
Exec Dt:
12/13/1996
4
BANG, SAN GU
Exec Dt:
12/13/1996
5
CHO, WON YOUNG
Exec Dt:
12/13/1996
6
JO, BYOUNG CHEON
Exec Dt:
12/13/1996
7
UHM, KI NAM
Exec Dt:
12/13/1996
Assignee
1
YUKONG LIMITED
26-4, YOIDO-DONG, YOUNGDUNGPO-KU
SEOUL, KOREA, REPUBLIC OF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5861461
NONE
08757691
Correspondence name and address
SEIDEL, GONDA, LAVORGNA & MONACO, P.C.
DANIEL A. MONACO, ESQUIRE
1800 TWO PENN CENTER PLAZA
PHILADELPHIA, PA 19102
Assignment: 2
Reel/Frame:010358/0153   Pages: 2
Recorded: 10/28/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LEE, YOUNG KEUN
Exec Dt:
10/14/1999
2
KIM, YOUNG WOOK
Exec Dt:
10/14/1999
3
KIM, TAE JOON
Exec Dt:
10/14/1999
4
JO, BYOUNG CHEON
Exec Dt:
10/14/1999
Assignee
1
SK CORPORATION
26-4, YOIDO-DONG, YONGDUNGPO-KU
SEOUL 150-010, KOREA, REPUBLIC OF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6319975
NONE
09429537
Correspondence name and address
ABELMAN, FRAYNE & SCHWAB
JAY S. CINAMON
ATTORNEYS AT LAW
150 EAST 42ND STREET
NEW YORK, NEW YORK 10017
Assignment: 3
Reel/Frame:015270/0791   Pages: 3
Recorded: 10/20/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LEE, YOUNG KEUN
Exec Dt:
09/03/2004
2
RHEE, JANG WEON
Exec Dt:
09/03/2004
3
CHO, WON YOUNG
Exec Dt:
09/03/2004
4
SUNG, JUNG MOON
Exec Dt:
09/03/2004
5
JO, BYOUNG CHEON
Exec Dt:
09/03/2004
6
LEE, CHOL HO
Exec Dt:
09/03/2004
7
JUNG, IN HWA
Exec Dt:
09/03/2004
8
JUNG, BYUNG RAE
Exec Dt:
09/03/2004
Assignee
1
SK CORPORATION
99, SEORIN-DONG, JONGRO-GU
SEOUL, KOREA, REPUBLIC OF 110-110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7435761
US20060009538
10943997
Correspondence name and address
CLARK & BRODY
1750 K STREET, NW
SUITE 600
WASHINGTON, DC 20006
Assignment: 4
Reel/Frame:015470/0258   Pages: 3
Recorded: 12/20/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LEE, YOUNG KEUN
Exec Dt:
10/19/2004
2
RHEE, JANG WEON
Exec Dt:
10/19/2004
3
CHO, WON YOUNG
Exec Dt:
10/19/2004
4
SUNG, JUNG MOON
Exec Dt:
10/19/2004
5
JO, BYOUNG CHEON
Exec Dt:
10/19/2004
6
LEE, CHOL HO
Exec Dt:
10/19/2004
7
JUNG, IN HWA
Exec Dt:
10/19/2004
8
JUNG, BYUNG RAE
Exec Dt:
10/19/2004
Assignee
1
SK CORPORATION
99, SEORIN-DONG, JONGRO-GU
SEOUL, KOREA, REPUBLIC OF 110-110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7332531
US20050277702
10964639
Correspondence name and address
CLARK & BRODY
1750 K STREET, NW
SUITE 600
WASHINGTON, DC 20006
Assignment: 5
Reel/Frame:016120/0359   Pages: 3
Recorded: 06/10/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LEE, YOUNG KEUN
Exec Dt:
04/14/2005
2
RHEE, JANG WEON
Exec Dt:
04/14/2005
3
SUNG, JUNG MOON
Exec Dt:
04/14/2005
4
JO, BYOUNG CHEON
Exec Dt:
04/14/2005
5
LEE, CHOL HO
Exec Dt:
04/14/2005
Assignee
1
SK CORPORATION
99 SEORIN-DONG, JONGRO-GU
SEOUL, KOREA, REPUBLIC OF 110-110
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060228540
11126279
Correspondence name and address
CLARK & BRODY
1090 VERMONT AVENUE, NW
SUITE 250
WASHINGTON, DC 20005
Assignment: 6
Reel/Frame:035728/0813   Pages: 7
Recorded: 05/28/2015
Attorney Dkt #:5038-147816
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
JEON, MIN HO
Exec Dt:
12/23/2014
2
JO, BYOUNG CHEON
Exec Dt:
12/31/2014
3
CHEONG, SANG BAE
Exec Dt:
12/23/2014
4
PARK, SANG HYUN
Exec Dt:
12/23/2014
5
KAN, TAE GYU
Exec Dt:
12/23/2014
Assignee
1
SK INNOVATION CO., LTD.
26, JONG-RO, JONGNO-GU
SEOUL, KOREA, REPUBLIC OF 110-728
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9623640
US20150183195
14580885
Correspondence name and address
THE WEBB LAW FIRM
420 FT. DUQUESNE BLVD., SUITE 1200
ONE GATEWAY CENTER
PITTSBURGH, PA 15222
Assignment: 7
Reel/Frame:048138/0790   Pages: 19
Recorded: 01/25/2019
Attorney Dkt #:9041-1807413
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHENG, YONG
Exec Dt:
01/08/2019
2
PARK, DOH YEON
Exec Dt:
12/21/2018
3
JASEK, MARK
Exec Dt:
01/14/2019
4
KIM, SUK JOON
Exec Dt:
12/21/2018
5
SHIN, HAI JIN
Exec Dt:
12/21/2018
6
JUNG, JU EUN
Exec Dt:
12/21/2018
7
JO, BYOUNG CHEON
Exec Dt:
12/21/2018
8
BALHOFF, CHRISTOPHER
Exec Dt:
01/15/2019
9
KA, DU YOUN
Exec Dt:
12/24/2018
Assignees
1
SK INNOVATION CO., LTD.
26, JONG-RO, JONGNO-GU
SEOUL, KOREA, REPUBLIC OF 03188
2
SK GLOBAL CHEMICAL CO., LTD.
26, JONG-RO, JONGNO-GU
SEOUL, KOREA, REPUBLIC OF 03188
3
SK GC AMERICAS INC.
11700 KATY FREEWAY, SUITE 900
HOUSTON, TEXAS 77079
4
SK PRIMACOR AMERICAS LLC
11700 KATY FREEWAY, SUITE 900
HOUSTON, TEXAS 77079
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11168163
US20200239611
16257818
Correspondence name and address
THE WEBB LAW FIRM, P.C.
ONE GATEWAY CENTER
420 FT. DUQUESNE BLVD, SUITE 1200
PITTSBURGH, PA 15222
Assignment: 8
Reel/Frame:063866/0364   Pages: 5
Recorded: 06/06/2023
Attorney Dkt #:05038-2304399
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
JO, BYOUNG CHEON
Exec Dt:
05/16/2023
2
LEE, SUNG WON
Exec Dt:
05/16/2023
3
KIM, HAK BIN
Exec Dt:
05/18/2023
4
HONG, DAE SIG
Exec Dt:
05/19/2023
5
SONG, JUN CHEOL
Exec Dt:
05/15/2023
Assignees
1
SK INNOVATION CO., LTD.
26, JONG-RO, JONGNO-GU
SEOUL, KOREA, REPUBLIC OF 03188
2
SK GEO CENTRIC CO., LTD.
51, JONG-RO, JONGNO-GU
SEOUL, KOREA, REPUBLIC OF 03161
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20240009979
18329828
Correspondence name and address
THE WEBB LAW FIRM
420 FORT DUQUESNE BLVD.
ONE GATEWAY CENTER SUITE 1200
PITTSBURGH, PA 15222
Assignment: 9
Reel/Frame:064292/0262   Pages: 5
Recorded: 07/18/2023
Attorney Dkt #:05038-2304334
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SON, JAE MYOUNG
Exec Dt:
07/07/2023
2
JO, BYOUNG CHEON
Exec Dt:
07/07/2023
3
NAM, JOO HYUN
Exec Dt:
07/07/2023
4
BAEK, EUN JUNG
Exec Dt:
07/07/2023
Assignees
1
SK INNOVATION CO., LTD.
26, JONG-RO, JONGNO-GU
SEOUL, KOREA, REPUBLIC OF 03188
2
SK GEO CENTRIC CO., LTD.
51 JONG-RO, JONGNO-GU
SEOUL, KOREA, REPUBLIC OF 03161
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20240034036
18353922
Correspondence name and address
THE WEBB LAW FIRM
420 FORT DUQUESNE BLVD.
ONE GATEWAY CENTER SUITE 1200
PITTSBURGH, PA 15222

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