Growing community of inventors

Suwon-si, South Korea

Seokrak Chang

Average Co-Inventor Count = 5.54

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

Seokrak ChangSeongjin An (2 patents)Seokrak ChangYeongchan Eun (2 patents)Seokrak ChangGilltae Roh (2 patents)Seokrak ChangJunwon Suh (1 patent)Seokrak ChangSungwon Jeong (1 patent)Seokrak ChangInseob Song (1 patent)Seokrak ChangYoungseung Na (1 patent)Seokrak ChangDonguk Lee (1 patent)Seokrak ChangSeokrak Chang (2 patents)Seongjin AnSeongjin An (4 patents)Yeongchan EunYeongchan Eun (2 patents)Gilltae RohGilltae Roh (2 patents)Junwon SuhJunwon Suh (17 patents)Sungwon JeongSungwon Jeong (5 patents)Inseob SongInseob Song (3 patents)Youngseung NaYoungseung Na (2 patents)Donguk LeeDonguk Lee (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Samsung Sdi Co., Inc. (2 from 7,646 patents)


2 patents:

1. 8440361 - Monopolar separator with an insulation layer for a fuel cell system

2. 7691520 - Fuel cell system

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12/28/2025
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