For the Inventor, By the Inventor

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Epworks Co., Ltd.

USPTO Granted Patents = 2

% Expired Patents = 50.0

Forward Citations = 5

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4 inventors (with patents filed for the assignee):

Kun Kul Ryoo (1 out of 1 patent)

Jae-June Kim (1 out of 1 patent)

Jae June Kim (1 out of 1 patent)

4. Gu S Kim (1 out of 11 patents)

2 patents: Sort by Forward Citations

1. 8821826 - Method for regenerating silicon from silicon waste and silicon manufactured using the same (2014-09-02),

2. 7264995 - Method for manufacturing wafer level chip scale package using redistribution substrate (2007-09-04),

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USPTO Data Jan 1 1976 - Oct 20 2026

2 Patents

#220 in

#3,801 in South Korea

Epworks Co., Ltd.

Forward Citations = 5

4 inventors:

Kun Kul Ryoo (1 out of 1 patent)

Jae-June Kim (1 out of 1 patent)

Jae June Kim (1 out of 1 patent)

4. Gu S Kim (1 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Epworks Co., Ltd.. Retrieved from https://idiyas.com/company/epworks-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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