ST

Spencer Tien

📍 Irwindale, CA: #1 of 1 inventorsTop 100%
🗺 California: #2,144 of 10,592 inventorsTop 25%
Overall (1989): #56,033 of 140,708Top 40%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4861685 Portable rechargeable battery Ronnie A. Matheny 1989-08-29