DP

David Polk

📍 Derby, KS: #2 of 16 inventorsTop 15%
🗺 Kansas: #262 of 1,015 inventorsTop 30%
Overall (2011): #320,442 of 364,097Top 90%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7985460 Composite contaminant vapor barrier system and method — 2011-07-26