IK

Ingo Klueppel

EA Ewald Dörken Ag: 1 patents #26 of 58Top 45%
📍 Bochum, DE: #506 of 1,022 inventorsTop 50%
Overall (All Time): #2,897,126 of 4,157,543Top 70%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10011907 Method for the manufacture of a substrate provided with a chromium VI-free and cobalt-free passivation Marcel Roth, Christopher Koester, Verena Grossmann, Gerhard Reussmann 2018-07-03