DH

Daniel W. Hennen

3M: 1 patents #392 of 1,133Top 35%
📍 Cottage Grove, MN: #12 of 42 inventorsTop 30%
🗺 Minnesota: #1,346 of 4,549 inventorsTop 30%
Overall (2002): #235,061 of 266,432Top 90%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6407859 Fresnel lens for projection screen Robert S. Moshrefzadeh, John C. Nelson, Scott M. Tapio, Patrick Thomas 2002-06-18