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Robert Pitz-Paal
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Troisdorf, DE
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last 30 patents
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Patent Grant
Solar receiver
Patent number
6,003,508
Issue date
Dec 21, 1999
Deutsches Zentrum fuer Luft- und Raumfahrt e.V.
Bernhard Hoffschmidt
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Solar receiver
Patent number
5,979,439
Issue date
Nov 9, 1999
Deutsches Zentrum fuer Luft- und Raumfahrt e.V.
Bernhard Hoffschmidt
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Shutter means for regulating the fluid flow in an absorber pipe of...
Patent number
5,944,010
Issue date
Aug 31, 1999
Deutsches Zentrum fuer Luft- und Raumfahrt e.V.
Bernhard Hoffschmidt
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Absorber
Patent number
5,797,387
Issue date
Aug 25, 1998
Deutsche Forschungsanstalt fur Luft- und Raumfahrt e.V.
Thomas Fend
F24 - HEATING RANGES VENTILATING