Patent Assignment
Reel/Frame 022973/0471
Merger
Recorded: 2009-07-20
Pages: 13
Assignor
KTFREETEL CO., LTD.
Executed: 2009-06-01
Assignee
KT CORPORATION
206, JUNGJA-DONG, BUNDANG-GU, KYEONGGI-DO, SEONGNAM-CITY, 463-711, KOREA, REPUBLIC OF
Covered Properties
(23)
Signal Processing Apparatus and Method for Reducing the Effects of Interference and Noise in Wirless Communication Systems
Patent:
6,127,973 →
Application:
08/844,255 →
Design Technique of an Array Antenna , and Telecommunication System and Method Utilizing the Array Antenna
Patent:
5,999,800 →
Application:
08/844,364 →
System and Method for Obtaining Ec/Io for Use in Positioning a Base Station for Mobile Communication Network
Patent:
6,466,560 →
Application:
09/207,097 →
System and Method for in-Building Mobile Communications
Patent:
6,374,119 →
Application:
09/434,964 →
Method and Apparatus for Automatic Call Test in a Cdma System
Patent:
6,567,381 →
Application:
09/468,094 →
Repeater System Having Oscillation Preventing Function and Automatic Reverse Output Disabling Function for Non-Subscriber and Control Method Thereof
Roaming Service System for Gsm Service Subscriber in Cdma Service Area, and Method for Registering Locations and Transmitting and Receiving Signals and Short Messages Using the System
Method of Supporting Small Group Multicast in Mobile Ip
System and Method for Supervising Repeater by Using Wireless Mobile
Cdma Terminal for Providing Roaming Service to Gsm Service Subscriber in Cdma Service Area
Method for Receiving Data Using Sms and Wireless Internet and System Thereof
Method for Divisional Billing and Device Thereof
Apparatus and Method for Measuring Output Power of Pilot Channel at Cdma Base Station
Base Station and Method for Receiving and Processing Signal in the Base Station
Device and Method for Measuring Receive Sensitivity of Communication System Including Receive-Only Path
Clock Transmission Apparatus for Network Synchronization Between Systems Using an Even-Second Clock and an Unshielded Twisted Pair (Utp)
System and Apparatus for Tunneling Service of Explicit Multicast
Method and Apparatus for Tunneling Service of Explicit Multicast in Mobile Ip Network
Apparatus and Method for Processing Ranging Channel in Orthogonal Frequency Division Multiple Access System
Apparatus and Method for Separating Transmit and Receive Signals for Time Division Duplexing Radio System
Method and Apparatus for Receivability and Reachability Test of Explicit Multicast
Method for Providing Mobile Service Using Code-Pattern
Method and Apparatus for Changing a Sound Source of a Supplementary Service Using a Ring Back Tone on Calling
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 18, 1997
From: CHOI, SEUNG WON; YUN, DONG UN
To: CHOI, SEUNG WON
Reel/Frame 008521/0339 →
Assignment of Assignor's Interest
Apr 18, 1997
From: CHOI, SEUNG WON; YUN, DONG UN
To: CHOI, SEUNG WON
Reel/Frame 008616/0821 →
Assignment of Assignor's Interest
Dec 7, 1998
From: LEE, SANG-KEUN; BAEK, CHIL-HYUN
To: HANSOL PCS CO., LTD.
Reel/Frame 009636/0157 →
Assignment of Assignor's Interest
Aug 13, 1999
From: CHOI, SEUNG-WON
To: KOREA TELECOM FREETEL CO., LTD.
Reel/Frame 010168/0040 →
Assignment of Assignor's Interest
Sep 20, 1999
From: CHOI, SEUNG-WON
To: KOREA TELECOM FREETEL CO., LTD.
Reel/Frame 010254/0887 →
Assignment of Assignor's Interest
Nov 5, 1999
From: JUN, JU-SUNG; LEE, SANG-KEUN
To: HANSOL PCS CO., LTD.
Reel/Frame 010378/0270 →
Assignment of Assignor's Interest
Dec 21, 1999
From: JEON, YOUNG KI; KIM, YOUNG KON; CHOI, DAE GUN; CHANG, JAE WON
To: WILLTECH INCORPORATION; HANSOL PCS INCORPORATION
Reel/Frame 010478/0285 →
50% Assignment
Oct 16, 2000
From: KOREA TELECOM FREETEL CO., LTD.
To: CHOI, SEUNG-WON
Reel/Frame 011188/0941 →
Assigns Fifty Percent(5O% ) Interest See Document for Details.
Oct 16, 2000
From: KOREA TELECOM FREETEL CO., LTD.
To: CHOI, SEUNG-WON
Reel/Frame 011177/0986 →
Assignment of Assignor's Interest
Apr 16, 2001
From: AHN, BYUNG-IK; YUN, CHAN-HO; JEUNG, YUON-PIL; LEE, KWANG-WUK
To: KOREA TELECOM FREETEL CO., LTD.
Reel/Frame 011705/0104 →
Assignment of Assignor's Interest
May 31, 2001
From: OH, YOUNG-MIN; KANG, BYOUNG-SHIK; CHO, HYUNG-SIK; CHOI, WAN
To: KOREA TELECOM M.COM CO., LTD.
Reel/Frame 011854/0438 →
Assignment of Assignor's Interest
Oct 1, 2001
From: LEE, JI-WOONG
To: KTFREETEL CO., LTD.
Reel/Frame 012226/0826 →
Assignment of Assignor's Interest
Dec 20, 2001
From: PARK, SANG-WOOK
To: KTFREETEL CO., LTD.
Reel/Frame 012687/0262 →
Assignment of Assignor's Interest
Aug 15, 2002
From: HANSOL PCS INCORPORATION
To: KTFREETEL CO., LTD.
Reel/Frame 013197/0912 →
Assignment of Assignor's Interest
Sep 10, 2002
From: BACK, GAP-CHUN; YIM, SEUNG-HYOUK; PARK, SUNG-ZOO
To: KTFREETEL CO., LTD.
Reel/Frame 013533/0225 →
Assignment of Assignor's Interest
Oct 23, 2002
From: KIM, YEON-KIL; KIM, CHAN-KYUM; KIM, HYUNG-YONG
To: KTFREETEL CO., LTD.
Reel/Frame 013415/0624 →
Merger
Jan 8, 2003
From: HANSOL PCS CO., LTD.
To: KTFREETEL CO., LTD.
Reel/Frame 013645/0031 →
Assignment of Assignor's Interest
Mar 6, 2003
From: LEE, SANG KEUN; KIM, SANG KYUN
To: MTI CO., LTD.
Reel/Frame 013844/0285 →
Assignment of Assignor's Interest
Mar 25, 2003
From: AHN, BYUNG-IK; YUN, CHAN-HO; JEUNG, YUON-PIL; LEE, KWANG-WOUK
To: KTFREETEL CO., LTD.
Reel/Frame 014000/0189 →
Assignment of Assignor's Interest
Mar 18, 2004
From: CHOI, SEUNG-WON
To: SAS TECHNOLOGIES CO., LTD.
Reel/Frame 014444/0013 →
Assignment of Assignor's Interest
Mar 18, 2004
From: CHOI, SEUNG-WON
To: SAS TECHNOLOGIES CO., LTD.
Reel/Frame 014444/0108 →
Merger
Mar 29, 2004
From: HANSOL.M.COM
To: KT M. COM
Reel/Frame 014468/0242 →
Merger
Mar 29, 2004
From: KT M.COM
To: KT FREETEL CO., LTD.
Reel/Frame 014468/0217 →
Change of Name
Mar 29, 2004
From: HANSOL PCS CO., LTD.
To: HANSOL M.COM
Reel/Frame 014468/0214 →
Assignment of Assignor's Interest
May 26, 2004
From: LEE, JI-WOONG; SHIN, MYUNG-KI
To: KTFREETEL CO., LTD.
Reel/Frame 015403/0306 →