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Hans-Joachim Doering

RA Rag Aktiengesellschaft: 1 patents #1 of 6Top 20%
📍 Ratingen, DE: #4 of 25 inventorsTop 20%
Overall (2003): #217,240 of 273,478Top 80%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6571874 Method for the in-situ extraction of gas from coal seams Armin Lovenich 2003-06-03