Walter Kellner

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Munich, DE

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor memory device with trench capacitor and method for th...
- Patent number 5,843,819
- Issue date Dec 1, 1998
- Siemens Aktiengesellschaft
- Walter-Ulrich Kellner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor memory device with trench capacitor
- Patent number 5,701,022
- Issue date Dec 23, 1997
- Siemens Aktiengesellschaft
- Walter-Ulrich Kellner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High cut-off frequency planar Schottky diode having a plurality of...
- Patent number 4,292,643
- Issue date Sep 29, 1981
- Siemens Aktiengesellschaft
- Walter Kellner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Charge-coupled component formed on gallium arsenide
- Patent number 4,264,915
- Issue date Apr 28, 1981
- Siemens Aktiengesellschaft
- Hartwig Bierhenke
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fabrication of a semiconductor component element having a Schottky...
- Patent number 4,173,063
- Issue date Nov 6, 1979
- Siemens Aktiengesellschaft
- Hermann Kniepkamp
- H01 - BASIC ELECTRIC ELEMENTS