SP

Stephen Perenich

📍 Bettendorf, IA: #2 of 31 inventorsTop 7%
🗺 Iowa: #52 of 1,342 inventorsTop 4%
Overall (2011): #21,493 of 364,097Top 6%
4
Patents 2011

Issued Patents 2011

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7950166 Simplified energy-return shoe system — 2011-05-31
7913422 Pivoted energy-return shoe system — 2011-03-29
7905033 Energy-return shoe system — 2011-03-15
7900377 Energy-return shoe system with simplified toe mechanism — 2011-03-08