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Seoul, South Korea

Korea Telecom

USPTO Granted Patents = 81

% Expired Patents = 6.2

Forward Citations = 1,737

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243 inventors (with patents filed for the assignee):

Kyung Soo Kim (4 out of 71 patents)

Tae Goo Choy (4 out of 14 patents)

Tae-Gyu Kang (3 out of 47 patents)

4. Sang-Soo Lee (3 out of 81 patents)

5. Eung-Don Lee (3 out of 6 patents)

6. Young Tark Lee (3 out of 3 patents)

7. Jeong U Jeon (3 out of 3 patents)

8. Il Song Han (3 out of 6 patents)

9. Jong-Hyun Lee (2 out of 43 patents)

10. Yark Yeon Kim (2 out of 22 patents)

11. Sang Seok Lee (2 out of 38 patents)

12. Won Chul Song (2 out of 8 patents)

13. Seung Ho Ahn (2 out of 12 patents)

14. Myung Yung Jeong (2 out of 11 patents)

15. Jin Woo Hahn (2 out of 7 patents)

Core Competencies:

Internet Fax

MPLS Network

Mobile Terminal

Optical Fiber

Video Transmission

CDMA Systems

Traffic Management

Data Processing

Multimedia Conference

Signal Detection

Wireless Communication

Telecommunication

81 patents: Sort by Forward Citations

1. 7639384 - Method for controlling error of internet fax data (2009-12-29),

2. 7330283 - Method for controlling error of internet fax data (2008-02-12),

3. 7274654 - Method for sharing backup path in MPLS network, label switching router for setting up backup in MPLS network, and system therefor (2007-09-25),

4. 7200147 - Method for analyzing address for next generation integrated network service (2007-04-03),

5. 7193615 - Method for providing mobile terminal with software keyboard suitable for language used in country where it is located (2007-03-20),

6. 7092635 - Apparatus and method for stimulated Brillouin scattering suppression using supervisory channel (2006-08-15),

7. 7065085 - Method for summarizing default address of PNNI lowest level node in ATM switching system (2006-06-20),

8. 7006504 - VC merging apparatus and method for establishing/terminating connection thereof (2006-02-28),

9. 6957380 - Method for network adaptive error control FolP (2005-10-18),

10. 6950934 - Method for managing certificate revocation list by distributing it (2005-09-27),

11. 6919824 - Keypad assembly with supplementary buttons and method for operating the same (2005-07-19),

12. 6915423 - Method of providing time stamping service for setting client's system clock (2005-07-05),

13. 6868112 - Apparatus and method for detecting signals of space-time coding based on transmission diversity (2005-03-15),

14. 6853676 - Apparatus and method for inserting and detecting watermark based on stochastic model (2005-02-08),

15. 6847679 - Apparatus and method for communicating signal in asymmetric digital subscriber line network by using dual link discrete multi-tone (2005-01-25),

Company Overview

Korea Telecom, headquartered in Seoul, is a leading provider of network communication services in South Korea. The company specializes in a range of advanced technologies, including Internet fax, MPLS networks, and mobile terminal solutions. Its expertise extends to optical fiber infrastructure, video transmission systems, and CDMA technologies, positioning it at the forefront of telecommunications innovation. Korea Telecom is dedicated to enhancing traffic management and data processing capabilities, contributing to the evolution of digital communication in the region.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

81 Patents

#92 in Seoul

#224 in South Korea

#9,359 in the World

Seoul, South Korea

Korea Telecom

Forward Citations = 1,737

243 inventors:

Kyung Soo Kim (4 out of 71 patents)

Tae Goo Choy (4 out of 14 patents)

Tae-Gyu Kang (3 out of 47 patents)

4. Sang-Soo Lee (3 out of 81 patents)

5. Eung-Don Lee (3 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Korea Telecom. Retrieved from https://idiyas.com/company/korea-telecom

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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