IP Library › Assignment 016132/0926
Patent Assignment
Reel/Frame 016132/0926

Assignment of Assignor's Interest

Recorded: 2004-12-30 Pages: 2
Assignor
LEE, SANG YONG
Executed: 2004-12-30
Assignee
DONGBUANAM SEMICONDUCTOR INC.
891-10 DAECHI-DONG, GAGNAM-GU, SEOUL, 135-523, KOREA, REPUBLIC OF
Covered Property (1)
Shallow Trench Isolation Structure and Formation Method Thereof
Patent: 7,339,251 →
Application: 11/026,926 →
Publication: US 2005/0139949
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name May 15, 2006
From: DONGBUANAM SEMICONDUCTOR INC.
To: DONGBU ELECTRONICS CO., LTD.
Reel/Frame 017616/0966 →
Merger and Change of Name Nov 29, 2017
From: DONGBU ELECTRONICS CO., LTD.; DONGBU HITEK CO., LTD.
To: DONGBU HITEK CO., LTD.
Reel/Frame 044533/0523 →
Change of Name Nov 30, 2017
From: DONGBU HITEK CO., LTD.
To: DB HITEK CO., LTD
Reel/Frame 044555/0913 →
Assignment of Assignor's Interest Jul 10, 2019
From: DB HITEK CO., LTD.
To: COLUMBA TECHNOLOGIES INC.
Reel/Frame 049709/0857 →