Patent Assignment
Reel/Frame 016975/0708
Assignment of Assignor's Interest
Recorded: 2005-09-08
Pages: 4
Assignors
CHOI, SUN
Executed: 2005-08-19
PARK, DEUK S.
Executed: 2005-08-19
KIM, SUK J.
Executed: 2005-08-19
CHOI, AHN S.
Executed: 2005-08-19
KIM, HEE Y.
Executed: 2005-08-18
PARK, YONG K.
Executed: 2005-08-16
LEE, CHUL W.
Executed: 2005-08-10
CHOI, WON C.
Executed: 2005-08-05
HAN, SANG Y.
Executed: 2005-08-16
KIM, JEONG R.
Executed: 2005-08-17
Assignees
SK CORPORATION
99, SEORIN-DONG, JONGRO-GU, SEOUL, 110-110, KOREA, REPUBLIC OF
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
100, JANG-DONG, YUSEONG-GU, DAEJEON, 305-343, KOREA, REPUBLIC OF
Covered Property
(1)
Solid Acid Catalyst for Producing Light Olefins and Process Using the Same
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 14, 2007
From: SK CORPORATION
To: SK ENERGY CO., LTD
Reel/Frame 020249/0017 →
Change of Name
Jul 12, 2011
From: SK ENERGY CO., LTD
To: SK INNOVATION CO., LTD.
Reel/Frame 026576/0776 →
Corrective Assignment to Correct the Assignee Address Previously Recorded on Reel 026576 Frame 0776. Assignor(S) Hereby Confirms the Change of Name.
May 24, 2017
From: SK ENERGY CO., LTD.
To: SK INNOVATION CO., LTD.
Reel/Frame 042553/0926 →