DH

Donald H. Hockenberry

LK Leybold-Heraeus Gmbh & Co. Kg: 1 patents #7 of 18Top 40%
📍 Trafford, PA: #57 of 87 inventorsTop 70%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,113,516 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4207031 Dual speed rotary vane pump Alfred E. Maskrey 1980-06-10