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

Roland E. Cale

SESchaefer Equipment: 4 patents #1 of 5Top 20%
Cortland, OH: #26 of 132 inventorsTop 20%
Ohio: #13,499 of 73,341 inventorsTop 20%
Overall (All Time): #896,220 of 4,157,543Top 25%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4531665 Method of manufacturing clevis end connecting rod 1985-07-30
4414726 Method of manufacturing clevis end connecting rod 1983-11-15
4274277 Method of making railway car brake-rod jaw 1981-06-23
4204419 Brake-rod jaw with twisted forks 1980-05-27
4196642 Railway car brake-rod jaw 1980-04-08
4194599 Railway car brake beam lever mounting 1980-03-25