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For the Inventor, By the Inventor

Gwangju, South Korea

Dooqoom, Corp., Ltd.


USPTO Granted Patents = 2

Forward Citations = 8

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1 inventor (with patents filed for the assignee):

goldMedal Sang Heon Lee (2 out of 152 patents)


2 patents:

1. D1019907 - Strainer (2024-03-26),
2. D1006961 - Hammerless check valve (2023-12-05),
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USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#55 in Gwangju

#3,791 in South Korea

Gwangju, KR
Gwangju, South Korea

Dooqoom, Corp., Ltd.

Forward Citations = 8

1 inventor:

goldMedal Sang Heon Lee (2 out of 152 patents)

Please report any incorrect information to [email protected]
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