AA

Andreas Altherr

📍 Friedrichsthal, DE: #1 of 4 inventorsTop 25%
Overall (2011): #355,376 of 364,097Top 100%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8003580 Consolidated proppants having high mechanical strength and process for the preparation thereof Klaus Endres, Bernd Reinhard, Helmut Schmidt 2011-08-23