Patent Assignment
Reel/Frame 010981/0428
Assignment of Assignor's Interest
Recorded: 2000-07-06
Pages: 4
Assignors
PARK, SAM-RYONG
Executed: 2000-06-15
AHN, YOUNG-KYOUNG
Executed: 2000-06-15
OH, SUNG-GU
Executed: 2000-06-15
LEE, KI-HYUN
Executed: 2000-06-15
KIM, SUNG-JOONG
Executed: 2000-06-15
Assignee
SK CORPORATION
99, SEORIN-DONG, JONG-KU, SEOUL 110-110, KOREA, REPUBLIC OF
Covered Property
(1)
Chemical Cleaning Process for Removing Fouling
Patent:
6,485,578 →
Application:
09/610,730 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 18, 2007
From: SK CORPORATION
To: SK ENERGY CO., LTD.
Reel/Frame 020254/0940 →
Change of Name
Jul 14, 2011
From: SK ENERGY CO., LTD.
To: SK INNOVATION CO., LTD.
Reel/Frame 026619/0330 →
Assignment of Assignor's Interest
Jul 15, 2011
From: SK INNOVATION CO., LTD.
To: SK ENERGY CO., LTD.
Reel/Frame 026599/0289 →
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 →