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

Frederick R. John

FDFlow Dynamics: 1 patents #2 of 6Top 35%
Scottsdale, AZ: #1,961 of 3,386 inventorsTop 60%
Arizona: #18,403 of 32,909 inventorsTop 60%
Overall (All Time): #3,386,025 of 4,157,543Top 85%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7219560 Method for determining and correcting for turbine meter overspin at the instantaneous stoppage of flow rate Paul D. Olivier 2007-05-22