For the Inventor, By the Inventor

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Gwangsan-Gu, Gwangju, South Korea

Dayou Holdings Co., Ltd.

USPTO Granted Patents = 3

EPO Patents = 2

Forward Citations = 2

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8 inventors (with patents filed for the assignee):

Woojung Cheon (2 out of 2 patents)

Seon Chae Na (1 out of 61 patents)

Chan Ho Jung (1 out of 59 patents)

4. Suk Won Hong (1 out of 14 patents)

5. Woo Suk Choi (1 out of 4 patents)

6. Jong Seok Han (1 out of 14 patents)

7. Gil Ju Kim (1 out of 26 patents)

8. Jin Sik Kim (1 out of 2 patents)

9. Sun Woong Yu (0 patent)

10. Sang Hyun Kim (0 patent)

3 patents: Sort by Forward Citations

1. 10814757 - Seatback frame for vehicles (2020-10-27),

2. 10538184 - Integrated foam type headrest having different hardness, and manufacturing method thereof (2020-01-21),

3. 10207618 - Multi-hardness cushion for automobile and multi-hardness cushion having ventilation structure (2019-02-19),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#1 in Gwangsan-Gu, Gwangju

#2,646 in South Korea

Gwangsan-Gu, Gwangju, South Korea

Dayou Holdings Co., Ltd.

Forward Citations = 2

8 inventors:

Woojung Cheon (2 out of 2 patents)

Seon Chae Na (1 out of 61 patents)

Chan Ho Jung (1 out of 59 patents)

4. Suk Won Hong (1 out of 14 patents)

5. Woo Suk Choi (1 out of 4 patents)

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