DS

David C. Sutphen

📍 Whitehall, MD: #2 of 8 inventorsTop 25%
🗺 Maryland: #13,387 of 35,612 inventorsTop 40%
Overall (All Time): #2,063,564 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8342461 Collapsible waste and recycling bag holder — 2013-01-01
5038819 Movable air stand for pneumatic tools — 1991-08-13