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For the Inventor, By the Inventor

Taoyuan, Taiwan

Sampo Technology Corp.


USPTO Granted Patents = 2

% Expired Patents = 50.0

Forward Citations = 47

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4 inventors (with patents filed for the assignee):

goldMedal Heng-Chun Ho (1 out of 8 patents)

silverMedal Shu-Ming Liu (1 out of 18 patents)

bronzeMedal Hsing N Yang (1 out of 1 patent)

4.  Kwen-Yung Liu (1 out of 1 patent)


2 patents:

1. 6497608 - Toy car camera system and rear vision mirrors (2002-12-24),
2. 5434483 - Automatic compensation circuit for the horizontal deflection of a (1995-07-18),
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USPTO Data Jan 1 1976 - Sep 29 2026

2 Patents

#335 in Taoyuan

#4,245 in Taiwan

Taoyuan, TW
Taoyuan, Taiwan

Sampo Technology Corp.

Forward Citations = 47

4 inventors:

goldMedal Heng-Chun Ho (1 out of 8 patents)

silverMedal Shu-Ming Liu (1 out of 18 patents)

bronzeMedal Hsing N Yang (1 out of 1 patent)

4.  Kwen-Yung Liu (1 out of 1 patent)

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