Patent Assignment
Reel/Frame 020067/0975
Assignment of Assignor's Interest
Recorded: 2007-11-05
Pages: 4
Assignors
SUN, YANG KOOK
Executed: 2007-10-10
LEE, DOO KYUN
Executed: 2007-10-02
PARK, SANG HO
Executed: 2007-10-05
Assignee
SK ENERGY CO., LTD
99, SEORIN-DONG, JONGRO-GU, SEOUL, 110-110, KOREA, REPUBLIC OF
Covered Property
(1)
Process of Precipitation for Spheric Manganese Carbonate and the Products Produced Thereby
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jul 12, 2011
From: SK ENERGY CO., LTD.
To: SK INNOVATION CO., LTD.
Reel/Frame 026579/0144 →
Change of Address
Nov 7, 2022
From: SK INNOVATION CO., LTD.
To: SK INNOVATION CO., LTD.
Reel/Frame 061895/0380 →
Nunc Pro Tunc Assignment
Nov 7, 2022
From: SK INNOVATION CO., LTD.
To: SK ON CO., LTD.
Reel/Frame 062034/0198 →