RD

Roger Dönges

VK Viessmann Werke Gmbh & Co. Kg: 1 patents #17 of 56Top 35%
📍 Frankenau, DE: #3 of 5 inventorsTop 60%
Overall (All Time): #3,197,442 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8122855 Boiler Werner Klausmann, Gunthard Görge 2012-02-28