Patent Assignment
Reel/Frame 022209/0267
Assignment of Assignor's Interest
Recorded: 2009-02-05
Pages: 4
Assignor
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Executed: 2009-01-29
Assignees
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
161, GAJEONG-DONG, YUSEONG-GU, DAEJEON, KOREA, REPUBLIC OF
SK TELECOM CO., LTD.
11, EULJIRO 2-GA, JUNG-GU, SEOUL, 100-999, KOREA, REPUBLIC OF
KTFREETEL CO., LTD.
7-18, SINCHEON-DONG, SONGPA-GU, SEOUL, 138-240, KOREA, REPUBLIC OF
Covered Properties
(4)
Method for Discovering Wireless Network for Inter-System Handover, Multi-Mode Terminal Unit and Inter-Working Service Server Using the Method
Content packet transmission control method in mobile communication network supporting multimedia broadcast/multicast service
Application:
11/509,453 →
Publication:
US 2007/0133565
Device for Providing Hand-Off Quality of Service of Inter-Access Systems and Method Thereof
Method of Vertical Handoff
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 5, 2006
From: KIM, WON-IK; LEE, BONG-JU; SONG, JAE-SU; CHOI, SUNG-GU
To: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Reel/Frame 017979/0048 →
Assignment of Assignor's Interest
Aug 24, 2006
From: HYUN, EUN-HEE; YOON, HAN-JUN; CHO, CHEOL-HYE; BAHG, YOUNG-JICK
To: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Reel/Frame 018235/0164 →
Assignment of Assignor's Interest
Oct 5, 2006
From: BAEK, SEUNG-KWON; LEE, BONG-JU; SONG, JAE-SU; KIM, WON-IK
To: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Reel/Frame 018410/0810 →
Assignment of Assignor's Interest
Dec 8, 2006
From: KIM, WON-IK; LEE, BONG-JU; BAEK, SEUNG-KWON; KIM, SOO-CHANG
To: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Reel/Frame 018699/0554 →
Merger
Jul 20, 2009
From: KTFREETEL CO., LTD.
To: KT CORPORATION
Reel/Frame 022976/0032 →