For the Inventor, By the Inventor

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Gunpo, Gyeonggi-do, South Korea

Seojin Industrial Co., Ltd.

USPTO Granted Patents = 4

Forward Citations = 6

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12 inventors (with patents filed for the assignee):

Youn-Il Jung (2 out of 5 patents)

Sang Heon Lee (1 out of 144 patents)

Sung Ho Yoon (1 out of 7 patents)

4. Ho-Jung Jeong (1 out of 1 patent)

5. Sang-Il Lee (1 out of 23 patents)

6. Geon Hee Cheon (1 out of 1 patent)

7. Heung-Jun Oh (1 out of 1 patent)

8. Young-Hyun Kim (1 out of 1 patent)

9. Chang Dong Kim (1 out of 12 patents)

10. Uk Heo (1 out of 2 patents)

11. Han Young Hwang (1 out of 1 patent)

12. Sang Pil Park (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 12485739 - Vehicle battery case (2025-12-02),

2. 10603991 - Bracket-integrated double-layer door impact beam, apparatus and method for manufacturing the same (2020-03-31),

3. 10160398 - Two-wheeled transport fixing apparatus for pickup truck (2018-12-25),

4. 9120292 - Manufacturing method of vehicle tailgate inner panel (2015-09-01),

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USPTO Data Jan 1 1976 - Jan 6 2026

4 Patents

#1 in Gunpo, Gyeonggi-do

#2,091 in South Korea

Gunpo, Gyeonggi-do, South Korea

Seojin Industrial Co., Ltd.

Forward Citations = 6

12 inventors:

Youn-Il Jung (2 out of 5 patents)

Sang Heon Lee (1 out of 144 patents)

Sung Ho Yoon (1 out of 7 patents)

4. Ho-Jung Jeong (1 out of 1 patent)

5. Sang-Il Lee (1 out of 23 patents)

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