DG

Douglas R. Greulich

PF Patterson Fan: 2 patents #4 of 12Top 35%
HA Husqvarna Ab: 1 patents #376 of 690Top 55%
📍 Columbia, SC: #290 of 1,151 inventorsTop 30%
🗺 South Carolina: #4,446 of 15,501 inventorsTop 30%
Overall (All Time): #1,338,159 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12352286 Truck cooler fan Warren R. Garrison, Eric A. Trofatter 2025-07-08
11965523 Truck cooler fan Warren R. Garrison, Eric A. Trofatter 2024-04-23
9730383 Slip controlling belt tension system Matthew Albinger, Sean Dwyer 2017-08-15