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

John N. Acker — 3 Patents

Ringwood, IL: #5 of 14 inventorsTop 40%
Illinois: #26,653 of 84,256 inventorsTop 35%
Overall (All Time): #1,664,502 of 4,157,543Top 45%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5012918 Intermittent work conveying apparatus Bradley M. Andreae 1991-05-07
4942956 Part indexing and positioning apparatus Bradley M. Andreae 1990-07-24
4367866 Furnace adapted to contain molten metal Robert A. Petersen 1983-01-11