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For the Inventor, By the Inventor

Gyeonggi-do, South Korea

Hwaback Engineering Co., Ltd.


USPTO Granted Patents = 2

% Expired Patents = 100.0

Forward Citations = 10

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4 inventors (with patents filed for the assignee):

goldMedal Kang Gu Lee (2 out of 6 patents)

silverMedal Sang Jeen Hong (2 out of 2 patents)

bronzeMedal Jong Hwan Ahn (1 out of 1 patent)

4.  Sang Youl Lee (1 out of 1 patent)


2 patents:

1. 8332170 - Apparatus and method for detecting arcs (2012-12-11),
2. 7781325 - Copper pillar tin bump on semiconductor chip and method of forming the same (2010-08-24),
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USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#250 in Gyeonggi-do

#3,791 in South Korea

Gyeonggi-do, KR
Gyeonggi-do, South Korea

Hwaback Engineering Co., Ltd.

Forward Citations = 10

4 inventors:

goldMedal Kang Gu Lee (2 out of 6 patents)

silverMedal Sang Jeen Hong (2 out of 2 patents)

bronzeMedal Jong Hwan Ahn (1 out of 1 patent)

4.  Sang Youl Lee (1 out of 1 patent)

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