DP

David Polk

📍 Derby, KS: #73 of 126 inventorsTop 60%
🗺 Kansas: #6,307 of 12,005 inventorsTop 55%
Overall (All Time): #3,257,334 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

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