Hendrikus Berkhof

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Emmen, NL

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Patents Grantslast 30 patents

Information Patent Grant
Hot water heating system using a heat consumption meter
- Patent number 4,695,052
- Issue date Sep 22, 1987
- Honeywell B.V.
- Hendrikus Berkhof
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Differential pressure responsive switch
- Patent number 4,692,574
- Issue date Sep 8, 1987
- Honeywell B.V.
- Hendrikus Berkhof
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for controlling room temperature
- Patent number 4,671,457
- Issue date Jun 9, 1987
- Honeywell B.V.
- Hendrikus Berkhof
- G05 - CONTROLLING REGULATING
Information Patent Grant
Control system for a gas heated water or air heater
- Patent number 4,436,506
- Issue date Mar 13, 1984
- Honeywell B.V.
- Hendrikus Berkhof
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Diaphragm operated pressure regulator
- Patent number 4,406,400
- Issue date Sep 27, 1983
- Honeywell Inc.
- Hendrikus Berkhof
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Pressure regulator
- Patent number 4,182,488
- Issue date Jan 8, 1980
- Honeywell Inc.
- Hendrikus Berkhof
- G05 - CONTROLLING REGULATING