AM

Allen J. Massman

📍 Calmar, IA: #3 of 6 inventorsTop 50%
🗺 Iowa: #8,735 of 15,303 inventorsTop 60%
Overall (All Time): #2,423,157 of 4,157,543Top 60%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12326184 Captive clutch for vehicle transmission Chase H. Langreck, James W. Weissenfluh 2025-06-10