DH

Donald J. Hansen

FS Federal Signal: 1 patents #293 of 717Top 45%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Aurora, IL: #211 of 1,049 inventorsTop 25%
🗺 Illinois: #17,877 of 84,256 inventorsTop 25%
Overall (All Time): #1,047,539 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6315121 Wrench rack 2001-11-13
D292978 Horizontal variable speed turbine pump Gary G. Read 1987-12-01
4701309 Method of operating a heap leach for recovering uranium and vanadium Sundaresan Ramachandran, David O. Skiles 1987-10-20
4673034 Cased water wells having flexible pad 1987-06-16
4666512 Method for recovering vanadium from vanadium-containing ore John Goddard, Oreste J. Malacarne 1987-05-19