Growing community of inventors

Seoul, South Korea

Chang Shin Gwak

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 = 31

Chang Shin GwakJang Won Lee (2 patents)Chang Shin GwakJung Sik Park (2 patents)Chang Shin GwakChang Shin Gwak (2 patents)Jang Won LeeJang Won Lee (56 patents)Jung Sik ParkJung Sik Park (31 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Bluebird Inc. (2 from 28 patents)


2 patents:

1. D999215 - RFID reader

2. D916955 - Card payment terminal

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idiyas.com
as of
12/6/2025
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