Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Ritsuko Mutou

Overall (All Time): #3,562,810 of 4,157,543Top 90%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6476303 Music notation implement and music Kanpei Mutou, Seburou Mutou 2002-11-05