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Patent Assignment Abstract of Title
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Total Assignments: 4
Patent #:
7601663
Issue Dt:
10/13/2009
Application #:
11223833
Filing Dt:
09/08/2005
Publication #:
20060058562
Pub Dt:
03/16/2006
Inventors:
Sun Choi, Deuk Soo Park, Suk Joon Kim, Ahn Seop Choi, Yong Ki Park, Sang Yun Han et al
Title:
SOLID ACID CATALYST FOR PRODUCING LIGHT OLEFINS AND PROCESS USING THE SAME
Assignment: 1
Reel/Frame:
016975/0708Recorded: 09/08/2005Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
CHOI, SUN
Exec Dt:
08/19/2005
PARK, DEUK S.
Exec Dt:
08/19/2005
KIM, SUK J.
Exec Dt:
08/19/2005
CHOI, AHN S.
Exec Dt:
08/19/2005
KIM, HEE Y.
Exec Dt:
08/18/2005
PARK, YONG K.
Exec Dt:
08/16/2005
LEE, CHUL W.
Exec Dt:
08/10/2005
CHOI, WON C.
Exec Dt:
08/05/2005
HAN, SANG Y.
Exec Dt:
08/16/2005
KIM, JEONG R.
Exec Dt:
08/17/2005
Assignees:
SK CORPORATION
99, SEORIN-DONG, JONGRO-GU
SEOUL, KOREA, REPUBLIC OF 110-110
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
100, JANG-DONG, YUSEONG-GU
DAEJEON, KOREA, REPUBLIC OF 305-343
Correspondent:
JOSEPH R. ROBINSON
DARBY & DARBY P.C.
P.O. BOX 5257
NEW YORK, NY 10150-5257
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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