For the Inventor, By the Inventor

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Gyeonggi-do, South Korea

Jinhap Bollhoff Ltd.

USPTO Granted Patents = 1

Forward Citations = 0

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5 inventors (with patents filed for the assignee):

Cheol-Ung Lee (1 out of 10 patents)

Woo-Seok Jang (1 out of 1 patent)

Jae-Young An (1 out of 1 patent)

4. Yoon-Ki Lee (1 out of 6 patents)

5. Jin-Yong Kim (1 out of 23 patents)

1 patent: Sort by Forward Citations

1. 11219944 - Casting method for forming screw hole on inclined plane of casting, and casting integrated with insert having screw thread (2022-01-11),

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USPTO Data Jan 1 1976 - Sep 22 2026

1 Patents

#383 in Gyeonggi-do

#5,775 in South Korea

Gyeonggi-do, South Korea

Jinhap Bollhoff Ltd.

Forward Citations = 0

5 inventors:

Cheol-Ung Lee (1 out of 10 patents)

Woo-Seok Jang (1 out of 1 patent)

Jae-Young An (1 out of 1 patent)

4. Yoon-Ki Lee (1 out of 6 patents)

5. Jin-Yong Kim (1 out of 23 patents)

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