MR

Michael ROPPELT

📍 Edmonton, CA: #922 of 2,912 inventorsTop 35%
Overall (All Time): #1,890,893 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11156374 Thermal-energy exchange and storage system — 2021-10-26
10570711 Semi-permeable expanding sleeve system for borehole pipe spreading configurations and method of spreading pipes in a borehole — 2020-02-25