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Seoul, South Korea

Sk Innovation Co., Ltd.

USPTO Granted Patents = 739

CIPO Patents = 9

EPO Patents = 249

Trademarks = 3

Forward Citations = 1,058

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1,072 inventors (with patents filed for the assignee):

Seung Hoon Oh (35 out of 42 patents)

Myungahn Ok (31 out of 33 patents)

Hee Jung Jeon (27 out of 37 patents)

4. Tae Jin Kim (27 out of 73 patents)

5. Yun Bong Kim (23 out of 24 patents)

6. Kwang Kuk Lee (21 out of 21 patents)

7. Jisu Jeong (21 out of 23 patents)

8. Hee Soo Kim (20 out of 32 patents)

9. Won Sub Kwack (18 out of 18 patents)

10. Kyu Young Cho (18 out of 18 patents)

11. Jin Su Ham (17 out of 17 patents)

12. Cheol Woo Kim (17 out of 27 patents)

13. Sun Woong Choi (17 out of 32 patents)

14. Myung Ahn Ok (17 out of 20 patents)

15. Kwangjin Chung (17 out of 18 patents)

Core Competencies:

Lithium Secondary Battery

Optical Multilayer Structure

Waste Plastic Pyrolysis

Separator Manufacturing

Polyimide Film

Hydrocarbon Refining

Anode Manufacturing

Cathode Active Material

Polyethylene Film

Carbon Dioxide Absorbent

Battery Module

Ethylene-Carboxylic Acid Copolymer

739 patents: Sort by Forward Citations

1. 12519150 - Method for recovering active metal of lithium secondary battery (2026-01-06),

2. 12517185 - Method for detecting abnormal condition or fault of battery, and a battery management system operating the same (2026-01-06),

3. 12512466 - Anode active material for a lithium secondary battery, method of preparing the same and lithium secondary battery including the same (2025-12-30),

4. 12508572 - Carbon dioxide absorbent comprising ionic liquid and alcohol solvent, and method of separating carbon dioxide using the same (2025-12-30),

5. 12503531 - Organic and inorganic composite polymer electrolyte and all solid state battery comprising the same (2025-12-23),

6. 12491702 - Flexible smart window and method of manufacturing the same (2025-12-09),

7. 12482897 - Separator for secondary battery, method for manufacturing the same and lithium secondary battery containing the same (2025-11-25),

8. 12476292 - Method for recovering active metal of lithium secondary battery (2025-11-18),

9. 12474508 - Optical multilayer structure, method of manufacturing the same, and window cover film including the same (2025-11-18),

10. 12473411 - Optical multilayer structure, method of manufacturing the same and window cover film comprising the same (2025-11-18),

11. 12454120 - Polyethylene film having multi-layer structure and packaging material produced using the same (2025-10-28),

12. 12451533 - Method for reducing waste by recovering transition metals from lithium secondary battery (2025-10-21),

13. 12441944 - Method and device for refining waste plastic pyrolysis oil (2025-10-14),

14. 12438234 - Separator, method of manufacturing separator, and electrochemical device including separator (2025-10-07),

15. 12421462 - Lube base oil manufacturing process utilizing refined oil fraction of waste lubricant, and lube base oil manufactured thereby (2025-09-23),

SK Innovation Co., Ltd. is a South Korean company primarily engaged in the development and production of lithium-ion battery materials and solutions. With a focus on innovation and sustainability, SK Innovation strives to create advanced energy storage solutions for various industries including electric vehicles, consumer electronics, and energy storage systems. The company's diverse product portfolio includes battery cells, separators, and cathode materials, among others. SK Innovation is committed to playing a leading role in the global energy transition towards a cleaner and more sustainable future.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

739 Patents

#22 in Seoul

#42 in South Korea

#1,318 in the World

Seoul, South Korea

Sk Innovation Co., Ltd.

Forward Citations = 1,058

1,072 inventors:

Seung Hoon Oh (35 out of 42 patents)

Myungahn Ok (31 out of 33 patents)

Hee Jung Jeon (27 out of 37 patents)

4. Tae Jin Kim (27 out of 73 patents)

5. Yun Bong Kim (23 out of 24 patents)

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