YB

Ying Y. Butler

🗺 California: #22,912 of 57,791 inventorsTop 40%
Overall (2016): #177,739 of 481,213Top 40%
1
Patents 2016

Issued Patents 2016

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9364709 Compact portable leg exercise machine John Butler 2016-06-14