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USPTO Patent Rankings Data through Dec 31, 2025
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Ryu Shimada — 6 Patents

DEDexerials: 6 patents #78 of 387Top 25%
Tokyo, JP: #23,316 of 90,295 inventorsTop 30%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Ryu Shimada has been granted 6 US patents while listed as an inventor at Dexerials. The first was granted in 2020 and the most recent in April 2024. Ryu Shimada ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Ryu Shimada in Tokyo, JP.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
11952297 Extract of plant powder, and water purifier Takanori Fujita, Masahiko Ito, Masato Hasegawa 2024-04-09
11866354 Extract of plant powder, and water purifier Takanori Fujita, Masahiko Ito, Masato Hasegawa 2024-01-09
11440821 Water-purifying agent and water purification method Masahiko Ito, Takanori Fujita 2022-09-13
11161757 Water purification dispersion, production method for water purification dispersion, and waste water treatment method Masahiko Ito, Takanori Fujita 2021-11-02
10954142 Water cleaning agent and water cleaning method Masayuki Nakamura, Takanori Fujita, Kazuhiro Kimura, Masato Hasegawa 2021-03-23
10850995 Filtration aid and filtration treatment method Masato Hasegawa 2020-12-01