Ludwig Dirscherl

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Munich, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for testing subscriber access lines
- Patent number 7,286,952
- Issue date Oct 23, 2007
- Siemens Aktiengesellschaft
- Svend Christensen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit and method for triggering an over-voltage protection unit
- Patent number 6,137,667
- Issue date Oct 24, 2000
- Siemens Aktiengesellschaft
- Bernhard Sieben
- G01 - MEASURING TESTING