DH

Donald J. Hess

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Willow Grove, PA: #67 of 135 inventorsTop 50%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,996,995 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4594166 Desludging device for centrifuges William D. Clinton 1986-06-10