For the Inventor, By the Inventor

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Seoul, South Korea

4en Incorporation

USPTO Granted Patents = 1

Forward Citations = 0

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5 inventors (with patents filed for the assignee):

A Rom Oh (1 out of 2 patents)

Woo Ram Kim (1 out of 1 patent)

Yeon Kyu Lee (1 out of 1 patent)

4. Jung Woo Roh (1 out of 1 patent)

5. Han Ki Lee (1 out of 16 patents)

1 patent: Sort by Forward Citations

1. 11578199 - Polyolefin-based resin composition for vehicle interior material comprising heat-treated waste coffee grounds (2023-02-14),

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USPTO Data Jan 1 1976 - Dec 23 2025

1 Patents

#1,756 in Seoul

#5,496 in South Korea

Seoul, South Korea

4en Incorporation

Forward Citations = 0

5 inventors:

A Rom Oh (1 out of 2 patents)

Woo Ram Kim (1 out of 1 patent)

Yeon Kyu Lee (1 out of 1 patent)

4. Jung Woo Roh (1 out of 1 patent)

5. Han Ki Lee (1 out of 16 patents)

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