Patent Assignment
Reel/Frame 023829/0864
Assignment of Assignor's Interest
Recorded: 2010-01-14
Pages: 3
Assignors
LEE, HEE DU
Executed: 2010-01-04
OH, KYUNG JONG
Executed: 2009-12-29
KO, MIN SU
Executed: 2009-12-29
PARK, MIN GYOO
Executed: 2010-01-04
LEE, SEONG JUN
Executed: 2009-12-29
YIM, YOON JAE
Executed: 2009-12-29
OH, SEUNG HOON
Executed: 2009-12-29
KIM, TAE JIN
Executed: 2009-12-29
KIM, YONG SEUNG
Executed: 2009-12-29
PARK, DEUK SOO
Executed: 2009-12-30
KIM, HONG CHAN
Executed: 2009-12-29
Assignee
SK ENERGY CO., LTD.
99, SEORIN-DONG, JUNGRO-GU, SEOUL 110-110, KOREA, REPUBLIC OF
Covered Property
(1)
Process for 1,3-Butadiene Separation from a Crude C4 Stream with Acetylene Converter
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jul 14, 2011
From: SK ENERGY CO., LTD.
To: SK INNOVATION CO., LTD.
Reel/Frame 026619/0330 →
Corrective Assignment to Correct the Incorrect Patent Number 7448700 and Replace It with 7488700 Previously Recorded on Reel 026619 Frame 0330. Assignor(S) Hereby Confirms the Change of Name.
Apr 11, 2016
From: SK ENERGY CO., LTD.
To: SK INNOVATION CO., LTD.
Reel/Frame 038406/0201 →