JS

John R. Kochan, Sr.

MI Metropolitan Industries: 2 patents #7 of 13Top 55%
📍 Naperville, IL: #1,350 of 3,051 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,207,851 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6647664 Hanger for a housing — 2003-11-18
5707211 Variable speed pump system with a hydropneumatic buffer/pressure tank — 1998-01-13