Helmut Waigand

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St. Georgen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Stove with a capacitive sailing sensor and sensor-controlled starti...
- Patent number 5,343,020
- Issue date Aug 30, 1994
- Bosch-Siemens Hausgeraete GmbH
- Helmut Waigand
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Oven controller with safety reset of timer
- Patent number 4,849,597
- Issue date Jul 18, 1989
- Bosch-Siemens Hausgerate GmbH
- Helmut Waigand
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Control circuit assembly for heating elements in cooking plates
- Patent number 4,493,979
- Issue date Jan 15, 1985
- Bosch-Siemens Hausgeraete GmbH
- Walter Bredel
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Device for the input of adjustment values in electronic switching s...
- Patent number 4,430,578
- Issue date Feb 7, 1984
- Bosch-Siemens Hausgerate GmbH
- Helmut Waigand
- G05 - CONTROLLING REGULATING
Information Patent Grant
Variable resistance switch
- Patent number 4,419,653
- Issue date Dec 6, 1983
- Bosch-Siemens Hausgerate GmbH
- Helmut Waigand
- G01 - MEASURING TESTING