For the Inventor, By the Inventor

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Seoul, South Korea

Byong Duk Choi

USPTO Granted Patents = 2

Forward Citations = 6

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2 inventors (with patents filed for the assignee):

Byong Deok Choi (2 out of 59 patents)

Kyong Y Yoo (2 out of 2 patents)

2 patents: Sort by Forward Citations

1. 5538410 - Toothbrush body preform molding device and toothbrush body preform to be (1996-07-23),

2. 5517711 - Toothbrush (1996-05-21),

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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#1,173 in Seoul

#3,608 in South Korea

Seoul, South Korea

Byong Duk Choi

Forward Citations = 6

2 inventors:

Byong Deok Choi (2 out of 59 patents)

Kyong Y Yoo (2 out of 2 patents)

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