DS

David D. Sproul

Air Products And Chemicals: 1 patents #1,147 of 1,997Top 60%
📍 Houston, TX: #12,319 of 21,073 inventorsTop 60%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #4,057,586 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4404008 Combined cascade and multicomponent refrigeration method with refrigerant intercooling Robert J. Rentler 1983-09-13