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USPTO Patent Rankings Data through Sept 30, 2025
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Chikara Katano

ZEZeon: 2 patents #16 of 146Top 15%
Overall (2021): #173,256 of 548,734Top 35%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10988609 Nitrile group-containing highly saturated copolymer rubber composition Tomonori Nakashima, Masato Sakamoto 2021-04-27
10968287 Method for producing hydrogenated conjugated diene polymer latex Kentaro ONO, Yasuaki Watanabe 2021-04-06