BB

Barry A. Butler

📍 Owatonna, MN: #3 of 12 inventorsTop 25%
🗺 Minnesota: #1,135 of 6,876 inventorsTop 20%
Overall (2022): #176,289 of 548,613Top 35%
2
Patents 2022

Issued Patents 2022

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11528956 Energy return orthotic systems 2022-12-20
11528957 Energy return orthotic systems 2022-12-20