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For the Inventor, By the Inventor

Gimhae-si, South Korea

Sambu Fine Chemical Co., Ltd.


USPTO Granted Patents = 4


Forward Citations = 1

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7 inventors (with patents filed for the assignee):

goldMedal Heedae Park (3 out of 26 patents)

silverMedal Keunha Kim (1 out of 1 patent)

bronzeMedal Jung Ah Choi (1 out of 2 patents)

4.  Hee-dae Park (1 out of 4 patents)

5.  Sung Hoon Kim (1 out of 1 patent)

6.  Sung Hoon Kim (0 patent)

7.  Jung Ah Choi (0 patent)


4 patents:

1. 12409587 - Producing method of foam sheet for shoe with recycled PU scrap powder (2025-09-09),
2. 12359035 - Manufacturing method of foam sheet for shoes with TPU powder and recycled PU scrap powder (2025-07-15),
3. 11912839 - Hot melt film containing biomass-based thermoplastic polyurethane resin (2024-02-27),
4. 10500821 - Real wood film and method of manufacturing injection-molded real wood product by using the same (2019-12-10),
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USPTO Data Jan 1 1976 - Dec 9 2025

4 Patents

#5 in Gimhae-si

#2,085 in South Korea

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Gimhae-si, South Korea

Sambu Fine Chemical Co., Ltd.

Forward Citations = 1

7 inventors:

goldMedal Heedae Park (3 out of 26 patents)

silverMedal Keunha Kim (1 out of 1 patent)

bronzeMedal Jung Ah Choi (1 out of 2 patents)

4.  Hee-dae Park (1 out of 4 patents)

5.  Sung Hoon Kim (1 out of 1 patent)

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