Eric W. Grald

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Maple Plain, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Humidistat reset control
- Patent number 5,351,855
- Issue date Oct 4, 1994
- Honeywell Inc.
- Lorne W. Nelson
- G05 - CONTROLLING REGULATING
Information Patent Grant
Error based zone controller
- Patent number 5,318,104
- Issue date Jun 7, 1994
- Honeywell Inc.
- Dipak J. Shah
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Method and apparatus for controlling a heating/cooling system based...
- Patent number 5,115,968
- Issue date May 26, 1992
- Honeywell Inc.
- Eric W. Grald
- G05 - CONTROLLING REGULATING
Information Patent Grant
Zone control system providing synchronization of system operation w...
- Patent number 5,024,265
- Issue date Jun 18, 1991
- Honeywell Inc.
- Robert L. Buchholz
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Adaptive anticipator mechanism for limiting room temperature swings
- Patent number 4,901,918
- Issue date Feb 20, 1990
- Gas Research Institute
- Eric W. Grald
- G05 - CONTROLLING REGULATING
Information Patent Grant
Temperature and humidity auctioneering control
- Patent number 4,889,280
- Issue date Dec 26, 1989
- Gas Research Institute
- Eric W. Grald
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Method for operating variable speed heat pumps and air conditioners
- Patent number 4,873,649
- Issue date Oct 10, 1989
- Honeywell Inc.
- Eric W. Grald
- F24 - HEATING RANGES VENTILATING