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Seoul, South Korea

Seoyon E-Hwa Co., Ltd.

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USPTO Granted Patents = 48

% Expired Patents = 10.4

EPO Patents = 4

Forward Citations = 43

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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 11 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 7 patents)

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

8. Ju Hwan Cho (4 out of 4 patents)

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

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

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

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

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

14. Won Young Bae (3 out of 11 patents)

15. Chun Lei Sang (3 out of 5 patents)

Core Competencies:

Battery Module

Gap Filler

Interior Materials

User Interface

Cooling Structure

Rotatable Armrest

Noise Absorbing Material

Natural Fiber

Console Assembly

Vehicle Bumper

Door Module

Wiring Harness

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. 12103392 - Levitating user-interface gadget (2024-10-01),

10. 12059882 - Dash isolation pad (2024-08-13),

11. 12026003 - Operation apparatus for vehicle (2024-07-02),

12. 12012053 - In-vehicle operating device and method of controlling same (2024-06-18),

13. 11971738 - User interface device with adjustable knob holding force (2024-04-30),

14. 11958396 - Hidden type holder device, vehicle armrest including holder device, and transportation means including the same (2024-04-16),

15. 11951837 - Decorated switch for vehicles and interior panel for vehicles (2024-04-09),

Company Overview

Seoyon E-Hwa Co., Ltd. is a prominent player in the automotive components sector, specializing in the development and manufacturing of advanced materials and systems for vehicle interiors. The company focuses on innovative solutions such as battery modules, cooling structures, and user interface devices, enhancing both functionality and user experience in modern vehicles. With a commitment to sustainability, Seoyon E-Hwa also incorporates natural fiber compositions and noise-absorbing materials into its products, positioning itself at the forefront of automotive engineering in South Korea.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

48 Patents

#125 in Seoul

#326 in South Korea

#14,570 in the World

Seoul, South Korea

Seoyon E-Hwa Co., Ltd.

Forward Citations = 43

69 inventors:

Ji Hyun Cho (8 out of 8 patents)

Jong Hwan Jeon (7 out of 11 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Seoyon E-Hwa Co., Ltd.. Retrieved from https://idiyas.com/company/seoyon-e-hwa-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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