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Seoul, South Korea

Seoyon E-Hwa Co., Ltd.

USPTO Granted Patents = 48

EPO Patents = 4

Forward Citations = 39

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69 inventors (with patents filed for the assignee):

Ji Hyun Cho (8 out of 8 patents)

Jong Hwan Jeon (7 out of 10 patents)

Dong Suk Kim (6 out of 8 patents)

4. Jong Kyu Kim (5 out of 5 patents)

5. Chi Won Yoon (4 out of 5 patents)

6. Bong Ju Choi (4 out of 4 patents)

7. Sung Won Lee (4 out of 27 patents)

8. Hue Yeon An (3 out of 3 patents)

9. Jae In Yu (3 out of 3 patents)

10. Hang Chul Ko (3 out of 3 patents)

11. Sung Ik Cho (3 out of 3 patents)

12. Jae Won Lee (3 out of 77 patents)

13. Ju Hwan Cho (3 out of 4 patents)

14. Won Young Bae (3 out of 5 patents)

15. Chun Lei Sang (3 out of 3 patents)

Core Competencies:

Battery Module

Vehicle Interior Materials

Cooling Structure

User Interface Device

Rotatable Armrest

Noise Absorbing Material

Molded Product Manufacturing

Natural Fiber Composition

Hinge Unit

Sliding Armrest

Door Module

Wiring Harness Assembly

48 patents: Sort by Forward Citations

1. 12494546 - Battery module having wave type gauge bar (2025-12-09),

2. 12451539 - Battery pack cooling structure through applying variable thickness of gap filler (2025-10-21),

3. 12415301 - Apparatus and method for manufacturing skin-integrated interior materials (2025-09-16),

4. 12409766 - Rotatable cup holder for vehicle and vehicle equipped with the same (2025-09-09),

5. 12347836 - Vehicle battery system and method for detecting and coping with swelling phenomenon (2025-07-01),

6. 12200831 - Heating film (2025-01-14),

7. 12172572 - Operation apparatus for vehicle (2024-12-24),

8. 12172363 - Apparatus and method for manufacturing interior material for vehicle (2024-12-24),

9. 12059882 - Dash isolation pad (2024-08-13),

10. 12026003 - Operation apparatus for vehicle (2024-07-02),

11. 12012053 - In-vehicle operating device and method of controlling same (2024-06-18),

12. 11971738 - User interface device with adjustable knob holding force (2024-04-30),

13. 11958396 - Hidden type holder device, vehicle armrest including holder device, and transportation means including the same (2024-04-16),

14. 11951837 - Decorated switch for vehicles and interior panel for vehicles (2024-04-09),

15. 11914413 - Operation apparatus for vehicle (2024-02-27),

Seoyon E-HWA Co., Ltd. is a leading global manufacturing company specializing in automotive parts and accessories. With over 30 years of experience, we have established ourselves as a trusted partner to major automobile manufacturers worldwide. Our diverse product range includes interior components, exterior trims, electronics, and advanced engineering solutions. We pride ourselves on delivering innovative and high-quality products that meet the ever-evolving demands of the automotive industry. Through continuous research and development, we strive to contribute to the advancement of mobility and enhance the driving experience for customers around the world.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

48 Patents

#100 in Seoul

#319 in South Korea

#14,125 in the World

Seoul, South Korea

Seoyon E-Hwa Co., Ltd.

Forward Citations = 39

69 inventors:

Ji Hyun Cho (8 out of 8 patents)

Jong Hwan Jeon (7 out of 10 patents)

Dong Suk Kim (6 out of 8 patents)

4. Jong Kyu Kim (5 out of 5 patents)

5. Chi Won Yoon (4 out of 5 patents)

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