OP

Owen J. Powlen

📍 Kewanna, IN: #3 of 5 inventorsTop 60%
🗺 Indiana: #13,671 of 33,936 inventorsTop 45%
Overall (All Time): #2,257,390 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5716523 Treatment of on-site animal waste pits — 1998-02-10
5627069 Treatment of on-site animal waste pits — 1997-05-06