For the Inventor, By the Inventor

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Yongin-si, South Korea

Solum Co., Ltd.

USPTO Granted Patents = 85

EPO Patents = 15

Trademarks = 11

Forward Citations = 106

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176 inventors (with patents filed for the assignee):

Dong Kyun Ryu (10 out of 19 patents)

Heung Gyoon Choi (10 out of 24 patents)

Jae Gen Eom (8 out of 14 patents)

4. Hyun Hun Cho (8 out of 8 patents)

5. Tae Won Heo (7 out of 18 patents)

6. Young Min Lee (7 out of 57 patents)

7. Sang Keun Ji (6 out of 6 patents)

8. Hwan Chul Cho (6 out of 18 patents)

9. Young Seung Noh (6 out of 13 patents)

10. Jong Woo Kim (6 out of 74 patents)

11. Seh Hoon Jang (5 out of 5 patents)

12. Nak Jun Jeong (5 out of 5 patents)

13. Byoung Woo Ryu (5 out of 19 patents)

14. Jung Chul Gong (5 out of 41 patents)

15. Geun Young Park (5 out of 21 patents)

Core Competencies:

Transformer

Electronic Shelf Label

Wireless Charger

Battery Case

Power Supply Device

Heat Dissipation Structure

Printed Circuit Board

Electronic Label Management

Lighting Device

Coil Component

Charger Design

Location Information System

85 patents: Sort by Forward Citations

1. 12525390 - Coil structure, power factor correction circuit including the coil structure, and power supply including the power factor correction circuit (2026-01-13),

2. 12500029 - Transformer having reverse structure, power supply, and flat panel display device including the same (2025-12-16),

3. 12431274 - Base and transformer device including the same (2025-09-30),

4. 12426173 - Battery case and electronic price indicator including the same (2025-09-23),

5. 12424379 - Transformer and power supplying device including the same (2025-09-23),

6. 12334694 - Electric appliance and adapter (2025-06-17),

7. 12307433 - Electronic shelf label and method of controlling information display of the same (2025-05-20),

8. 12046937 - Wireless charger with sterilization function (2024-07-23),

9. 12046406 - Planar transformer including y-capacitor (2024-07-23),

10. 12045795 - Electronic shelf label and method of controlling information display of the same (2024-07-23),

11. 12028985 - Electrical device having heat dissipation structure using filler and manufacturing method of the same (2024-07-02),

12. 11985772 - Battery case and electronic price indicator including the same (2024-05-14),

13. 11955755 - Electric appliance and adapter (2024-04-09),

14. 11899332 - Display device (2024-02-13),

15. 11825599 - Air-pocket prevention PCB, air-pocket prevention PCB module, electrical device including the same, and manufacturing method of electrical device including the same (2023-11-21),

SOLUM CO., LTD. is a leading technology company specializing in smart retail solutions. With a team of highly skilled professionals, SOLUM offers innovative products and services to enhance the retail experience and improve operational efficiency. Utilizing cutting-edge technologies like IoT, AI, and data analytics, SOLUM provides intelligent solutions for inventory management, customer engagement, and digital signage. Their aim is to help retailers maximize sales and create interactive, personalized experiences for their customers. Visit their website for more information and to explore their comprehensive range of smart retail solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 20 2026

85 Patents

#7 in Yongin-si

#204 in South Korea

#8,736 in the World

Yongin-si, South Korea

Solum Co., Ltd.

Forward Citations = 106

176 inventors:

Dong Kyun Ryu (10 out of 19 patents)

Heung Gyoon Choi (10 out of 24 patents)

Jae Gen Eom (8 out of 14 patents)

4. Hyun Hun Cho (8 out of 8 patents)

5. Tae Won Heo (7 out of 18 patents)

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