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

Robert L. Sills

PUPutco: 4 patents #16 of 33Top 50%
Polk City, IA: #14 of 44 inventorsTop 35%
Iowa: #2,628 of 15,303 inventorsTop 20%
Overall (All Time): #887,063 of 4,157,543Top 25%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5704678 Cap protector for pickup truck sidewalls Dennis L. Elwell 1998-01-06
D388043 Decorative top edge cover for pickup truck side walls Dennis L. Elwell 1997-12-23
5598961 Vehicle tool box 1997-02-04
D369140 Vehicle tool box 1996-04-23
D299186 Storage cabinet for vehicles 1989-01-03
4604013 Vehicle side rail assembly Dennis L. Elwell 1986-08-05