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Patent Assignment Abstract of Title
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Total Assignments: 4
Patent #:
7939702
Issue Dt:
05/10/2011
Application #:
11421496
Filing Dt:
06/01/2006
Publication #:
20070083071
Pub Dt:
04/12/2007
Inventors:
Sun Choi, Yong Seung Kim, Deuk Soo Park, Suk Joon Kim, Il Mo Yang
Title:
PROCESS FOR INCREASING PRODUCTION OF LIGHT OLEFINS FROM HYDROCARBON FEEDSTOCK IN CATALYTIC CRACKING
Assignment: 1
Reel/Frame:
017773/0836Recorded: 06/13/2006Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
CHOI, SUN
Exec Dt:
11/07/2005
KIM, YONG SEUNG
Exec Dt:
11/07/2005
PARK, DEUK SOO
Exec Dt:
11/07/2005
KIM, SUK JOON
Exec Dt:
11/07/2005
YANG, IL MO
Exec Dt:
11/07/2005
Assignee:
SK CORPORATION
99, SEORIN-DONG, JONGRO-GU
SEOUL, KOREA, REPUBLIC OF 110-110
Correspondent:
DARBY & DARBY P.C.
805 THIRD AVENUE, 27TH FLOOR
NEW YORK, NY 10022
Assignment: 2
Reel/Frame:
020249/0017Recorded: 12/14/2007Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
SK CORPORATION
Exec Dt:
12/03/2007
Assignee:
SK ENERGY CO., LTD
99 SEORIN-DONG
SEOUL, KOREA, REPUBLIC OF 110-110
Correspondent:
DARBY & DARBY, PC
P.O. BOX 770
NEW YORK, NY 10008-0770
Assignment: 3
Reel/Frame:
026576/0776Recorded: 07/12/2011Pages: 13
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
SK ENERGY CO., LTD
Exec Dt:
01/01/2011
Assignee:
SK INNOVATION CO., LTD.
99, SEORIN-DONG, JONGRO-GU
SEOUL, KOREA, DEMOCRATIC PEOPLE'S REPUBLIC OF
Correspondent:
LOUIS J. DELJUIDICE
MCDERMOTT WILL & EMERY
600 13TH STREET, N.W.
WASHINGTON, DC 20005-3096
Assignment: 4
Reel/Frame:
042553/0926Recorded: 05/24/2017Pages: 13
Conveyance:
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED ON REEL 026576 FRAME 0776. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME.
Assignor:
SK ENERGY CO., LTD.
Exec Dt:
01/01/2011
Assignee:
SK INNOVATION CO., LTD.
99, SEORIN-DONG, JONGRO-GU
SEOUL, KOREA, REPUBLIC OF
Correspondent:
MCDERMOTT WILL & EMERY LLP
THE MCDERMOTT BUILDING
500 NORTH CAPITOL STREET, N.W.
WASHINGTON, DC 20001

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