Harold L. Jeffery

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Ft. Wayne, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Leaving air temperature control of heating system
- Patent number 5,417,368
- Issue date May 23, 1995
- Carrier Corporation
- Harold L. Jeffery
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Leaving air temperature control of cooling system
- Patent number 5,417,077
- Issue date May 23, 1995
- Carrier Corporation
- Harold L. Jeffery
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Recovery process for heat pump system
- Patent number 5,402,845
- Issue date Apr 4, 1995
- Carrier Corporation
- Harold L. Jeffery
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Reactive heating control system
- Patent number 5,305,953
- Issue date Apr 26, 1994
- Carrier Corporation
- Ronald R. Rayburn
- F24 - HEATING RANGES VENTILATING