Growing community of inventors

Hong Kong, China

Roger Arthur Zwahlen

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 = 0

Roger Arthur ZwahlenTin Hong Alexander Tang (1 patent)Roger Arthur ZwahlenYasas Sri Nalaka Jayaratne (1 patent)Roger Arthur ZwahlenRoger Arthur Zwahlen (1 patent)Tin Hong Alexander TangTin Hong Alexander Tang (1 patent)Yasas Sri Nalaka JayaratneYasas Sri Nalaka Jayaratne (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. M and M Technologies Limited (1 from 7 patents)


1 patent:

1. 10402626 - Recognition of human faces based on population verified reproducible measurements between facial anthropological landmarks on 2 dimensional or 3 dimensional human photographs

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as of
12/20/2025
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