RF

Rolf Frech

Dr. Ing. H.C. F. Porsche Ag: 2 patents #722 of 2,421Top 30%
HG Hydraulik-Ring Gmbh: 1 patents #40 of 83Top 50%
📍 Diez, DE: #35 of 81 inventorsTop 45%
Overall (All Time): #2,111,269 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8006787 Hybrid vehicle Markus Goehring 2011-08-30
5120278 Arrangement for the tensioning and adjusting of a camshaft chain drive Alfred Trzmiel, Wolfgang Stephan, Johann-Georg Ulrich, Freidhelm Hage 1992-06-09