Growing community of inventors

Seoul, South Korea

Ja Hyeon Chang

Average Co-Inventor Count = 4.00

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 = 3

Ja Hyeon Chang ↔ Woo Hyun Kim (1 patent)Ja Hyeon Chang ↔ Keum Young Seo (1 patent)Ja Hyeon Chang ↔ Yeon Mee Kim (1 patent)Ja Hyeon ChangJa Hyeon Chang (1 patent)Woo Hyun KimWoo Hyun Kim (35 patents)Keum Young SeoKeum Young Seo (1 patent)Yeon Mee KimYeon Mee Kim (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Gongzone S&t Co., Ltd. (1 from 1 patent)


1 patent:

1. 10859279 - Window-type smart air purifying ventilator

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as of
12/13/2025
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