For the Inventor, By the Inventor

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Incheon, South Korea

Dl Construction Co.

USPTO Granted Patents = 1

Forward Citations = 0

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4 inventors (with patents filed for the assignee):

Jong-sub Lee (1 out of 4 patents)

Jung-Doung Yu (1 out of 1 patent)

Seok-Gyu Jeong (1 out of 1 patent)

4. Dong-Soo Lee (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 12509844 - Device for evaluating integrity of underground structure by using electromagnetic wave (2025-12-30),

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USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#222 in Incheon

#5,522 in South Korea

Incheon, South Korea

Dl Construction Co.

Forward Citations = 0

4 inventors:

Jong-sub Lee (1 out of 4 patents)

Jung-Doung Yu (1 out of 1 patent)

Seok-Gyu Jeong (1 out of 1 patent)

4. Dong-Soo Lee (1 out of 1 patent)

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