DH

Duane A. Humphreys

UE US Dept of Energy: 1 patents #1,355 of 5,099Top 30%
📍 Pittsburgh, PA: #4,559 of 7,570 inventorsTop 65%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,039,199 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4465103 Self-regulating flow control device — 1984-08-14