RS

Richard J. Sperley

UN Uniroyal: 1 patents #69 of 180Top 40%
📍 Troy, MI: #1,616 of 2,712 inventorsTop 60%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #4,042,653 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4477611 Reinforced rubber composition containing ground coal — 1984-10-16