EH

Ernest M. Hepler

📍 Evanston, IL: #13 of 55 inventorsTop 25%
🗺 Illinois: #802 of 3,813 inventorsTop 25%
Overall (1989): #116,589 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4870796 Weatherproof Roofing membrane and method for constructing the same Eric Hart 1989-10-03