Dale N. Skillman

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Rapid City, SD, US

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Patents Grantslast 30 patents

Information Patent Grant
Solar energy collecting apparatus and roll-formed metal building
- Patent number 4,390,010
- Issue date Jun 28, 1983
- Dale N. Skillman
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Solar energy collecting apparatus and methods
- Patent number 4,308,858
- Issue date Jan 5, 1982
- Dale N. Skillman
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Hybrid Solar Thermal and Photovoltaic Collector
- Publication number 20120024283
- Publication date Feb 2, 2012
- Dale N. Skillman
- F24 - HEATING RANGES VENTILATING