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Seoul, South Korea

Sk on Co., Ltd.

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USPTO Granted Patents = 394

EPO Patents = 104

Trademarks = 1

Forward Citations = 54

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376 inventors (with patents filed for the assignee):

Hae Ryong Jeon (31 out of 53 patents)

Seo Roh Rhee (26 out of 38 patents)

Jik Soo Kim (24 out of 34 patents)

4. Myoung Lae Kim (24 out of 33 patents)

5. Hee Gyoung Kang (22 out of 33 patents)

6. Seung Hoon Ju (21 out of 39 patents)

7. Sang Bok Kim (21 out of 30 patents)

8. Yong Uk Kim (18 out of 24 patents)

9. Jong Hyuk Lee (17 out of 25 patents)

10. Tae Il Kim (16 out of 42 patents)

11. Ji Hoon Choi (16 out of 63 patents)

12. Gwi Ok Park (15 out of 21 patents)

13. Yang Kyu Choi (14 out of 32 patents)

14. Seok Min Kim (13 out of 16 patents)

15. Byoung Wook Jo (13 out of 18 patents)

Core Competencies:

Anode Active Material

Cathode Active Material

Electrolyte Solution

Battery Management System

Battery Cell Stack

Secondary Battery

Battery Module

Negative Electrode

Positive Electrode

Manufacturing Method

Battery Pack

Electrode Assembly

394 patents: Sort by Forward Citations

1. 12525608 - Anode active material for lithium secondary battery and lithium secondary battery including the same (2026-01-13),

2. 12525605 - Cathode active material for lithium secondary battery and method of manufacturing the same (2026-01-13),

3. 12519171 - Method for manufacturing battery cell stack (2026-01-06),

4. 12519162 - Battery cell and method of manufacturing the same (2026-01-06),

5. 12519161 - Rechargeable battery (2026-01-06),

6. 12519155 - Secondary battery and battery module having thereof (2026-01-06),

7. 12519133 - Electrolyte solution for lithium secondary battery and lithium secondary battery including the same (2026-01-06),

8. 12519095 - Lithium secondary battery including negative electrode having improved resistance to degradation, and method for manufacturing same (2026-01-06),

9. 12517185 - Method for detecting abnormal condition or fault of battery, and a battery management system operating the same (2026-01-06),

10. 12515907 - Tape feeding device (2026-01-06),

11. 12512565 - Battery system (2025-12-30),

12. 12512536 - Pouch for secondary battery and secondary battery comprising the same (2025-12-30),

13. 12512468 - Cathode active material precursor and lithium secondary battery utilizing same (2025-12-30),

14. 12512466 - Anode active material for a lithium secondary battery, method of preparing the same and lithium secondary battery including the same (2025-12-30),

15. 12506172 - Pouch secondary battery and method of fabricating the same (2025-12-23),

Company Overview

SK on Co., Ltd., headquartered in Seoul, South Korea, specializes in the development and manufacturing of lithium secondary batteries. The company focuses on key technology areas such as anode and cathode active materials, electrolyte solutions, and battery management systems. With a commitment to advancing energy storage solutions, SK on plays a significant role in the battery industry, contributing to innovations in battery cell stacks, modules, and negative electrodes, thereby supporting various applications in electric vehicles and renewable energy systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

394 Patents

#31 in Seoul

#63 in South Korea

#2,357 in the World

Seoul, South Korea

Sk on Co., Ltd.

Forward Citations = 54

376 inventors:

Hae Ryong Jeon (31 out of 53 patents)

Seo Roh Rhee (26 out of 38 patents)

Jik Soo Kim (24 out of 34 patents)

4. Myoung Lae Kim (24 out of 33 patents)

5. Hee Gyoung Kang (22 out of 33 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sk on Co., Ltd.. Retrieved from https://idiyas.com/company/sk-on-company

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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