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

John S. Winter

CECummins Engine: 1 patents #304 of 765Top 40%
SDSystron Donner: 1 patents #16 of 35Top 50%
Walnut Creek, CA: #587 of 1,300 inventorsTop 50%
California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,257,059 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5713129 Method of manufacturing coated piston ring Freidoon Rastegar, Dana Richardson 1998-02-03
4234999 Clamp assembly and fabrication thereof Robert L. Moore 1980-11-25