DD

David B. Duensing

📍 Yorkville, IL: #54 of 144 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,165,945 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
RE38989 Skimmer filters for ponds Gary G. Wittstock, John M. Menhart 2006-02-28
6054045 Skimmer filters for ponds Gary G. Wittstock, John M. Menhart 2000-04-25