PS

Penny L. Sperl

📍 Bartlesville, OK: #786 of 1,143 inventorsTop 70%
🗺 Oklahoma: #6,781 of 12,736 inventorsTop 55%
Overall (All Time): #3,884,266 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5044435 Enhanced oil recovery using denitrifying microorganisms George T. Sperl 1991-09-03