NS

Norman F. Spear

TK Thermo King: 2 patents #179 of 483Top 40%
📍 Edina, MN: #435 of 909 inventorsTop 50%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,295,869 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5331821 Method of starting and running an internal combustion engine connected to a refrigerant compressor Jay L. Hanson, Doyle G. Herrig, James E. Nixon, Gerald J. Ladendorf, Lowell B. Naley 1994-07-26
5161384 Method of operating a transport refrigeration system Jay L. Hanson, Lowell B. Naley 1992-11-10