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

Jyoji Tokumi

Overall (All Time): #3,806,681 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5347960 Double-acting piston engine 1994-09-20