WK

Werner Korfmann

RA Ruhrkohle Ag: 1 patents #23 of 88Top 30%
📍 Witten, DE: #159 of 328 inventorsTop 50%
Overall (All Time): #4,079,127 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4361079 Apparatus for extending ventilating conduits Hans Jørgen Christensen, Paul Schlager 1982-11-30