Inventor
SPRINGMANN WALTER
DE4 patents
⚠️ This page may combine multiple inventors who share the name “SPRINGMANN WALTER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIEMENS AG
3 patentsUS6407937B2Jun 18, 2002
Active overvoltage protection apparatus for a bidirectional power switch in common collector mode
SIEMENS AG33 citations91
US6496343B2Dec 17, 2002
Overvoltage protection apparatus for a matrix converter
SIEMENS AG46 citations90
US6559532B1May 6, 2003
Matrix converter
SIEMENS AG17 citations82