DH

Douglas Hardesty

IS Infiltrator Systems: 2 patents #2 of 7Top 30%
📍 Akron, OH: #31 of 147 inventorsTop 25%
🗺 Ohio: #845 of 6,034 inventorsTop 15%
Overall (2011): #103,283 of 364,097Top 30%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7914231 Leaching chamber having a diagonally ribbed top Bryan A. Coppes 2011-03-29
D630294 Corrugated leaching chamber Bryan A. Coppes 2011-01-04