Seoul, South Korea

Seoyon E-hwaco., Ltd.


USPTO Granted Patents = 2

Forward Citations = 1

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3 inventors (with patents filed for the assignee):

goldMedal Chi Won Yoon (1 out of 5 patents)

silverMedal Hyun Pil Han (1 out of 2 patents)

bronzeMedal Dong Suk Kim (1 out of 8 patents)


2 patents:

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USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#1,170 in Seoul

#3,602 in South Korea

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Seoul, South Korea
Forward Citations = 1

3 inventors:

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