Growing community of inventors

Tainan, Taiwan

Charles Cheng

Average Co-Inventor Count = 2.00

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 = 0

Charles ChengChih Ming Chen (2 patents)Charles ChengCharles Cheng (2 patents)Chih Ming ChenChih Ming Chen (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hwa Meei Optical Co., Ltd. (2 from 10 patents)


2 patents:

1. 10437079 - Predefined reflective appearance eyewear lens with neutral balance visual perception

2. 10371967 - Predefined reflective appearance eyewear lens with balance chroma enhancement visual perception

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1/13/2026
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