WJ

Wilfred John

FE Forschungsverbund Berlin E.V.: 1 patents #72 of 186Top 40%
Overall (All Time): #1,542,810 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8455355 Method for producing through-contacts in semi-conductor wafers via production of through-plated holes Olaf Krueger, Gerd Schoene, Tim Wernicke, Joachim Wuerfl 2013-06-04
5193739 Process and device for soldering electronic boards, in particular, printed circuit boards with devices installed on them Volker Liedke, Karl-Heinz Grasmann, Hans-Jurgen Albrecht, Harald Wittrich, Wolfgang Scheel 1993-03-16
5192582 Procedure for processing joints to be soldered Volker Liedke, Karl-Heinz Grasmann, Hans-Jurgen Albrecht, Harald Wittrich, Wolfgang Scheel 1993-03-09