DW

David Ernest Walder

EE Elkins Earthworks: 1 patents #2 of 5Top 40%
📍 Wadsworth, OH: #205 of 336 inventorsTop 65%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #2,435,868 of 4,157,543Top 60%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12359948 Portable gas monitor Charles Elkins, Holden Chase Leblanc, Steve Woodrow Smith, Daniel Dwayne Duncan 2025-07-15