Douglas S. Denton

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Kirkland, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods for heating water using biofuel
- Patent number 9,568,214
- Issue date Feb 14, 2017
- GREENWOOD CLEAN ENERGY, INC.
- David S. Sharpe
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Systems and methods for heating water using biofuel
- Patent number 9,115,900
- Issue date Aug 25, 2015
- GREENWOOD CLEAN ENERGY, INC.
- David S. Sharpe
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
SYSTEMS AND METHODS FOR HEATING WATER USING BIOFUEL
- Publication number 20150362216
- Publication date Dec 17, 2015
- Greenwood Clean Energy, Inc.
- David S. Sharpe
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
SYSTEMS AND METHODS FOR HEATING WATER USING BIOFUEL
- Publication number 20120031387
- Publication date Feb 9, 2012
- GREENWOOD CLEAN ENERGY, INC.
- David S. Sharpe
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES