For the Inventor, By the Inventor

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Seoul, South Korea

Eggstone Co., Ltd.

USPTO Granted Patents = 2

Forward Citations = 0

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4 inventors (with patents filed for the assignee):

In Jae Chung (2 out of 30 patents)

Ji Hoon Chung (2 out of 6 patents)

Samuel Seok Jae Jeong (2 out of 2 patents)

4. Shin Won Yu (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 12667866 - Apparatus for sorting raw coffee beans based on defect detection (2026-06-30),

2. 12533713 - Apparatus for sorting raw coffee beans based on defect detection (2026-01-27),

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USPTO Data Jan 1 1976 - Sep 29 2026

2 Patents

#1,295 in Seoul

#3,785 in South Korea

Seoul, South Korea

Eggstone Co., Ltd.

Forward Citations = 0

4 inventors:

In Jae Chung (2 out of 30 patents)

Ji Hoon Chung (2 out of 6 patents)

Samuel Seok Jae Jeong (2 out of 2 patents)

4. Shin Won Yu (1 out of 1 patent)

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