Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RC

Ryukakusan Co.

Rank (2020): #23,109 of 32,488Top 75%
1 inventors
1 Patents 2020

Top Inventors at Ryukakusan Co. 2020

Showing 1–1 of 1 inventors

RankNamePatents
1 Atsuko Fukui 1