Duncan Callaway

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Oakland, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Two stage indirect evaporative cooling system
- Patent number 6,931,883
- Issue date Aug 23, 2005
- Davis Energy Group, Inc.
- Richard C. Bourne
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Vertical counterflow evaporative cooler
- Patent number 6,845,629
- Issue date Jan 25, 2005
- Davis Energy Group, Inc.
- Richard C. Bourne
- F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
TWO STAGE INDIRECT EVAPORATIVE COOLING SYSTEM
- Publication number 20050132738
- Publication date Jun 23, 2005
- DAVIS ENERGY GROUP, INC
- Richard C. Bourne
- F24 - HEATING RANGES VENTILATING
Information Patent Application
VERTICAL COUNTERFLOW EVAPORATIVE COOLER
- Publication number 20050016197
- Publication date Jan 27, 2005
- DAVIS ENERGY GROUP, INC
- Richard C. Bourne
- F28 - HEAT EXCHANGE IN GENERAL