JT

John R. Toporek

📍 Cedar Lake, IN: #1 of 2 inventorsTop 50%
🗺 Indiana: #228 of 1,070 inventorsTop 25%
Overall (1982): #20,247 of 81,411Top 25%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4364514 Heat-recovering apparatus for furnaces — 1982-12-21