JU

John D. Upperman

📍 Zion Grove, PA: #2 of 2 inventorsTop 100%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #1,910,970 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10690013 System and method for liquid air energy storage Ralph Greenberg 2020-06-23
10508596 System and method for liquid air energy storage Ralph Greenberg 2019-12-17