Growing community of inventors

Seongnam-si, South Korea

Hai Gang Roh

Average Co-Inventor Count = 1.33

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

Hai Gang RohHan Joon Kim (2 patents)Hai Gang RohHai Gang Roh (4 patents)Han Joon KimHan Joon Kim (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Sk Planet Co., Ltd. (4 from 296 patents)


4 patents:

1. 11023660 - Terminal device for data sharing service using instant messenger

2. 10929371 - System and method for supporting contact reminding

3. 9842131 - System and method for supporting contact reminding

4. 9338645 - Method and system for message service in multi-device environment and apparatus therefor

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as of
12/16/2025
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