Growing community of inventors

Taichung, Taiwan

Chia-Chen Chang

Average Co-Inventor Count = 3.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 36

Chia-Chen ChangShang-Yung Liang (1 patent)Chia-Chen ChangChih-Wei Hung (1 patent)Chia-Chen ChangChia-Chen Chang (1 patent)Shang-Yung LiangShang-Yung Liang (10 patents)Chih-Wei HungChih-Wei Hung (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Asia Optical Co., Ltd. (1 from 486 patents)


1 patent:

1. 7559169 - Firearm aiming and photographing compound apparatus and laser sight

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12/20/2025
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