JH

John Hartmann

📍 Barrington, IL: #15 of 51 inventorsTop 30%
🗺 Illinois: #1,021 of 4,484 inventorsTop 25%
Overall (1994): #114,056 of 165,921Top 70%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5301721 Underground secondary containment and vapor recovery piping system — 1994-04-12