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Swansea, United Kingdom

Qing 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 = 25

Qing ChangAndrew R Mills (1 patent)Qing ChangQing Chang (1 patent)Andrew R MillsAndrew R Mills (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)


1 patent:

1. 5480611 - Carbon dioxide detector

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12/19/2025
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