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For the Inventor, By the Inventor

Seoul, South Korea

Howtech Corporation Ltd.


USPTO Granted Patents = 2

% Expired Patents = 50.0

Forward Citations = 2

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2 inventors (with patents filed for the assignee):

goldMedal Nak Joong Kim (2 out of 3 patents)

silverMedal Moon Jo Chung (2 out of 16 patents)


2 patents:

1. 6476088 - Polyolefin foam beads having high density crust and method for manufacturing the same (2002-11-05),
2. 6403662 - Continuous process for manufacturing polyolefin foam beads (2002-06-11),
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USPTO Data Jan 1 1976 - Sep 22 2026

2 Patents

#1,293 in Seoul

#3,780 in South Korea

Seoul, KR
Seoul, South Korea

Howtech Corporation Ltd.

Forward Citations = 2

2 inventors:

goldMedal Nak Joong Kim (2 out of 3 patents)

silverMedal Moon Jo Chung (2 out of 16 patents)

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