For the Inventor, By the Inventor

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Gyeonggi, South Korea

Eppscore Co., Ltd.

USPTO Granted Patents = 1

% Expired Patents = 100.0

Forward Citations = 7

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5 inventors (with patents filed for the assignee):

Jongho Park (1 out of 86 patents)

Whanjin Roh (1 out of 5 patents)

Myoung-shin Hong (1 out of 1 patent)

4. Donghwan Jang (1 out of 1 patent)

5. Soonnam Cho (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 7259475 - Uninterruptible power supply for the backup of AC-power supply (2007-08-21),

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USPTO Data Jan 1 1976 - Sep 29 2026

1 Patents

#55 in Gyeonggi

#5,779 in South Korea

Gyeonggi, South Korea

Eppscore Co., Ltd.

Forward Citations = 7

5 inventors:

Jongho Park (1 out of 86 patents)

Whanjin Roh (1 out of 5 patents)

Myoung-shin Hong (1 out of 1 patent)

4. Donghwan Jang (1 out of 1 patent)

5. Soonnam Cho (1 out of 1 patent)

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