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For the Inventor, By the Inventor

Hwanseong-si, South Korea

21Th Century Co., Ltd


USPTO Granted Patents = 3


Forward Citations = 0

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3 inventors (with patents filed for the assignee):

goldMedal Sung Hwan Kim (3 out of 44 patents)

silverMedal Hyoung Shik Kang (1 out of 1 patent)

bronzeMedal Dong Bin You (1 out of 1 patent)


3 patents:

1. 12109650 - Planing-polishing apparatus and method using femtosecond pulsed laser (2024-10-08),
2. 11938568 - Method for processing superfine blade edge using femtosecond laser (2024-03-26),
3. 10964489 - Upper mold for MLCC lamination (2021-03-30),
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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#1 in Hwanseong-si

#2,652 in South Korea

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Hwanseong-si, South Korea

21Th Century Co., Ltd

Forward Citations = 0

3 inventors:

goldMedal Sung Hwan Kim (3 out of 44 patents)

silverMedal Hyoung Shik Kang (1 out of 1 patent)

bronzeMedal Dong Bin You (1 out of 1 patent)

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