SE

Stephen K. Eckhardt

3M: 1 patents #327 of 1,069Top 35%
📍 White Bear Lake, MN: #12 of 51 inventorsTop 25%
🗺 Minnesota: #813 of 3,156 inventorsTop 30%
Overall (1997): #75,771 of 185,788Top 45%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5596455 Fixed-focus triplet projection lens for overhead projectors — 1997-01-21