Donald L. Crawmer

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Pennville, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Evacuated tubes for solar thermal energy collection
- Patent number 9,170,057
- Issue date Oct 27, 2015
- Thermal Resource Technologies, Inc.
- Donald L. Crawmer
- F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Evacuated Tubes For Solar Thermal Energy Collection
- Publication number 20160033172
- Publication date Feb 4, 2016
- THERMAL RESOURCE TECHNOLOGIES, INC.
- Donald L. Crawmer
- F24 - HEATING RANGES VENTILATING
Information Patent Application
EVACUATED TUBES FOR SOLAR THERMAL ENERGY COLLECTION
- Publication number 20120204860
- Publication date Aug 16, 2012
- Donald L. Crawmer
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
HIGH EFFICIENCY CONVERSION OF SOLAR RADIATION INTO THERMAL ENERGY
- Publication number 20110253127
- Publication date Oct 20, 2011
- FORT RECOVERY CONSTRUCTION & EQUIPMENT, LLC
- David L. Lowe
- F24 - HEATING RANGES VENTILATING