Growing community of inventors

Chiayi, Taiwan

Yung-Chang 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 = 4

Yung-Chang ChangDavid Yinkai Chao (2 patents)Yung-Chang ChangChien-Ho Lin (2 patents)Yung-Chang ChangYung-Chang Chang (2 patents)David Yinkai ChaoDavid Yinkai Chao (113 patents)Chien-Ho LinChien-Ho Lin (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Contour Optik Inc. (2 from 33 patents)


2 patents:

1. 9555233 - Electrode

2. 9433773 - Cranial electrotherapy stimulation device

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as of
12/18/2025
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