Chul Hee Ryu has been granted 13 US patents while listed as an inventor at LG . The first was granted in 2003 and the most recent in January 2021. Chul Hee Ryu ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Chul Hee Ryu in Daejeon, KR.
Patents per Year Patents granted per year, 2003 to 2021 Bar chart with a peak of 3 patents in 2017. peak 3 2003: 1 patents 2003 2006: 1 patents 2006 2012: 1 patents 2012 2015: 1 patents 2015 2016: 2 patents 2016 2017: 3 patents 2017 2018: 1 patents 2018 2019: 2 patents 2019 2021: 1 patents 2021
Issued Patents All Time
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Showing 1–13 of 13 patents
Patent # Title Co-Inventors Date
10889673 Super absorbent polymer and preparation method thereof Sang Gi Lee , Kyu Pal Kim , Bhom Ri Kim 2021-01-12
10335768 Super absorbent polymer Tae Bin Ahn , Chang Sun Han , Seung D. Hong , Dong Hyun Kim 2019-07-02
10285866 Super absorbent polymer Hyemin Lee 2019-05-14
10150829 Super absorbent polymer and preparation method thereof Sang Gi Lee , Kyu Pal Kim , Bhom Ri Kim 2018-12-11
9808787 Super absorbent polymer and preparation method thereof Hyemin Lee 2017-11-07
9708452 Method of preparing superabsorbent polymer Sang Gi Lee , Sung Soo Park , Tae Young Won 2017-07-18
9701796 Preparation method of superabsorbent polymer Hwayoon Jung , Chang Sun Han , Mi Young Kim , Tae Bin Ahn 2017-07-11
9486778 Super absorbent polymer and preparation method thereof Hyemin Lee 2016-11-08
9433921 Method for preparing a super absorbent polymer Gi Cheul Kim 2016-09-06
9156974 Method of preparing a super absorbent polymer and a super absorbent polymer prepared therefrom Yong Hun Lee , Kyu Pal Kim , Chang Sun Han , Gi Cheul Kim 2015-10-13
8249146 Method for selecting content adaptive coding mode — 2012-08-21
7108788 On-site treatment method of food waste generated from collective residence or institutional food service facilities Ho Nam Chang , Do-yun Kim , Moon II Kim , Woo-Gi Lee 2006-09-19
6507616 Video signal coding method — 2003-01-14
