Growing community of inventors

Taoyuang, Taiwan

Jack Chang

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 = 11

Jack Chang ↔ Tony H Chen (1 patent)Jack ChangJack Chang (1 patent)Tony H ChenTony H Chen (30 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Umax Data Systems, Inc. (1 from 157 patents)


1 patent:

1. D394047 - Scanner

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as of
12/22/2025
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