Josef Unterlass

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Patents Grantslast 30 patents

Information Patent Grant
Electric heating element utilizing ceramic PTC resistors for heatin...
- Patent number 4,899,032
- Issue date Feb 6, 1990
- Siemens Aktiengesellschaft
- Helmut Schwarzl
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Electrical multilayer component comprising a sintered, monolithic c...
- Patent number 4,819,128
- Issue date Apr 4, 1989
- Siemens Aktiengesellschaft
- Heinz Florian
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Component with filled layers and electrical contacts and methods fo...
- Patent number 4,797,780
- Issue date Jan 10, 1989
- Siemens Aktiengesellschaft
- Thomas Moser
- H01 - BASIC ELECTRIC ELEMENTS