WS

Walter Springmann

SA Siemens Aktiengesellschaft: 4 patents #3,516 of 22,248Top 20%
Overall (All Time): #1,268,993 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6559532 Matrix converter Herbert Schwarzbauer, Eckhard Wolfgang 2003-05-06
6496343 Overvoltage protection apparatus for a matrix converter Jochen Mahlein 2002-12-17
6407937 Active overvoltage protection apparatus for a bidirectional power switch in common collector mode Manfred Bruckmann 2002-06-18
5459356 Power semiconductor module having a plurality of semiconductor arrangements Gerhard Schulze, Karl-Heinz Sommer, Reinhold Spanke, Gyoergy Papp, Peter Zwanziger 1995-10-17