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

Darren Loo

LFL.B. Foster: 1 patents #8 of 30Top 30%
Pittsburgh, PA: #4,559 of 7,570 inventorsTop 65%
Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #2,520,712 of 4,157,543Top 65%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12060089 Spraying apparatus for applying friction modifying material to railroad rail Davey Mitchell, David Elvidge, Doug McKay, Joel Vandermarel, Nigel Davis +1 more 2024-08-13