For the Inventor, By the Inventor

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Seoul, South Korea

Changmin Technology Co., Ltd.

USPTO Granted Patents = 2

Forward Citations = 29

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4 inventors (with patents filed for the assignee):

Soo Dong Kim (2 out of 15 patents)

Hak Soo Chang (2 out of 4 patents)

Jong S Paik (1 out of 1 patent)

4. Kyung A Park (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 5531124 - Ultrasonic flow measuring method and apparatus thereof (1996-07-02),

2. 5515721 - Local river flow velocity measuring method and apparatus therefor (1996-05-14),

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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#1,175 in Seoul

#3,612 in South Korea

Seoul, South Korea

Changmin Technology Co., Ltd.

Forward Citations = 29

4 inventors:

Soo Dong Kim (2 out of 15 patents)

Hak Soo Chang (2 out of 4 patents)

Jong S Paik (1 out of 1 patent)

4. Kyung A Park (1 out of 1 patent)

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