RP

Roger N. Pearson

SA Schwing America: 1 patents #21 of 39Top 55%
📍 Elk River, MN: #137 of 238 inventorsTop 60%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,741,973 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5513671 Hydraulically controlled water spool valve Ronald J. Cortopassi, Lawrence P. Schmidt, Robert W. Shallue 1996-05-07