SP

Stephen Perenich

📍 Bettendorf, IA: #50 of 329 inventorsTop 20%
🗺 Iowa: #1,712 of 15,303 inventorsTop 15%
Overall (All Time): #574,847 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
9032646 Energy-return shoe system 2015-05-19
8627582 Energy-return shoe system 2014-01-14
8627583 Energy-return shoe system 2014-01-14
8171657 Pivoting sole energy-return shoe system 2012-05-08
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
7290354 Shoe suspension system 2007-11-06