IP Library › Assignment 020546/0516
Patent Assignment
Reel/Frame 020546/0516

Assignment of Assignor's Interest

Recorded: 2008-02-22 Pages: 2
Assignor
LEE, YOUNG-KYUN
Executed: 2008-01-14
Assignee
SODIFF ADVANCED MATERIALS CO., LTD.
#60-5, SANGJUL-DONG,, YOUNGJU-SI, GYEONGSANGBUK-DO, 750-080, KOREA, DEMOCRATIC PEOPLE'S REPUBLIC OF
Covered Property (1)
Method for Purifying Nitrogen Trifluoride
Patent: 7,569,122 →
Application: 12/064,468 →
Publication: US 2009/0142248
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Apr 5, 2016
From: SODIFF ADVANCED MATERIALS CO., LTD.
To: SK- MATERIALS CO., LTD.
Reel/Frame 038358/0460 →
Assignment of Assignor's Interest Sep 27, 2022
From: SK-MATERIALS CO., LTD.
To: SK SPECIALTY CO., LTD.
Reel/Frame 061229/0764 →