Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
1,322 patents granted to the 3 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to KT Corp.’s names, not what it holds today.
Patents granted
1,322
1,300 utility, 20 design, 2 reissue, 1976 to Dec 31, 2025
Granted in 2025
44
Against 49 in 2024 and 49 in 2023
Applications published
1,361
88 of them in 2025
Names they are printed under
3
its own name, a former name
By yearGrantedApplications published
'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Audio-visual technology149
Digital communication128
Telecommunications3
Computer technology3
Optics3
IT methods for management1
Measurement1
Control1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name3 counted
KT CORPORATION its own name
KR, as the owner printed on each patent. 15 more under the same name are not counted (printed in US, printed in CA, printed in JP)
1,211 granted
1,262 publishedKorea Telecom a former name
KR, as the owner printed on each patent
111 granted
1 publishedKT CORPORATION its own name
named as the applicant on its applications, in KR. 3 more under the same name are not counted (printed in US, printed in JP)
0 granted
98 published
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Dec 16, 2025 | 12,498,731 | Method and device for setting drone flight path | Control | KT CORPORATION |
| Dec 9, 2025 | 12,495,148 | Method and apparatus for processing video signal | Audio-visual technology | KT CORPORATION |
| Nov 25, 2025 | 12,483,989 | Method for dynamically applying battery saving technology, terminal and network apparatus implementing the method | Digital communication | KT CORPORATION |
| Nov 18, 2025 | 12,477,112 | Method and apparatus for processing video signal | Audio-visual technology | KT CORPORATION |
| Nov 11, 2025 | 12,470,375 | Method and device for quantum key distribution | Digital communication | KT CORPORATION |
| Oct 7, 2025 | 12,439,074 | Method and device for video signal processing | Audio-visual technology | KT CORPORATION |
| Sep 23, 2025 | 12,425,569 | Method and apparatus for processing video signal | Audio-visual technology | KT CORPORATION |
| Sep 9, 2025 | 12,414,183 | Method and device for dynamically switching a transmission method for receiving MBS data based on split radio bearer structure | Digital communication | KT CORPORATION |
| Sep 9, 2025 | 12,414,137 | Method and device for receiving MBS data | Digital communication | KT CORPORATION |
| Sep 9, 2025 | 12,414,083 | Method and apparatus for transmitting and receiving coordination information for sidelink communication | Digital communication | KT CORPORATION |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Dec 25, 2025 | 2025/0392972 | METHOD FOR CONTROLLING OPERATION OF MOBILE RELAY, AND APPARATUS THEREOF | Digital communication | KT CORPORATION |
| Dec 25, 2025 | 2025/0392704 | IMAGE ENCODING/DECODING METHOD AND APPARATUS | Audio-visual technology | KT CORPORATION |
| Dec 25, 2025 | 2025/0392550 | PACKET DATA PROCESSING METHOD AND DEVICE | Digital communication | KT CORPORATION |
| Dec 4, 2025 | 2025/0374195 | METHOD AND APPARATUS FOR NETWORK ENERGY SAVING | Digital communication | KT CORPORATION |
| Dec 4, 2025 | 2025/0373816 | IMAGE ENCODING/DECODING METHOD AND RECORDING MEDIUM STORING BITSTREAM | Audio-visual technology | KT CORPORATION |
| Nov 27, 2025 | 2025/0365588 | METHOD AND APPARATUS FOR MANAGING BEAM USING ARTIFICIAL INTELLIGENCE AND/OR MACHINE LEARNING | Computer technology | KT CORPORATION |
| Nov 13, 2025 | 2025/0351224 | METHOD AND APPARATUS FOR PERFORMING CELL DTX AND/OR CELL DRX IN WIRELESS COMMUNICATION SYSTEM | Digital communication | KT CORPORATION |
| Nov 13, 2025 | 2025/0351192 | METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN SUB-BAND FULL DUPLEX COMMUNICATION | Digital communication | KT CORPORATION |
| Nov 13, 2025 | 2025/0351027 | METHOD AND DEVICE FOR PREDICTING OCCURRENCE OF RLF IN UE | Digital communication | KT CORPORATION |
| Nov 13, 2025 | 2025/0350420 | METHOD AND APPARATUS FOR FULL DUPLEX IN WIRELESS COMMUNICATION SYSTEM | Digital communication | KT CORPORATION |
What it applied for, 2024 to 2025: Digital communication 81 · Audio-visual technology 66 · Computer technology 2 · Telecommunications 1.
A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.