DH

Daniel J. Halberg

UN Unknown: 2 patents #12,644 of 83,584Top 20%
📍 Vadnais Heights, MN: #147 of 216 inventorsTop 70%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,310,789 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7841292 Tactile fire escape system John Halberg 2010-11-30