ST

Stephen Tonchen

📍 Addison, IL: #91 of 247 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,349,616 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4609213 Preformed band for use in coupling tubular members — 1986-09-02
4466642 Prefabrication method and preformed band for use in coupling tubular members — 1984-08-21