PF

Paul F. Friesen

NV NVIDIA: 1 patents #4,316 of 7,811Top 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,020,758 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4538388 Positively vented flat roof system — 1985-09-03