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Roetgen, DE
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last 30 patents
Information
Patent Grant
High-pressure mercury vapor discharge lamp
Patent number
5,109,181
Issue date
Apr 28, 1992
U.S. Philips Corporation
Hanns E. Fischer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Gas discharge lamp with microporous aerogel
Patent number
4,866,327
Issue date
Sep 12, 1989
U.S. Philips Corporation
Hanns E. Fischer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Air-conditioner
Patent number
4,562,955
Issue date
Jan 7, 1986
U.S. Philips Corporation
Horst Horster
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Solar collector for heating a gaseous heat transport medium
Patent number
4,319,559
Issue date
Mar 16, 1982
U.S. Philips Corporation
Wilhelm Hermann
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Wall element comprising a solar collector which is disposed between...
Patent number
4,284,069
Issue date
Aug 18, 1981
U.S. Philips Corporation
Horst Horster
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Solar collector comprising an entrance window consisting of evacuat...
Patent number
4,144,875
Issue date
Mar 20, 1979
Richard Bruno
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Solar collector comprising an evacuated cover
Patent number
4,142,509
Issue date
Mar 6, 1979
U.S. Philips Corporation
Wilhelm Hermann
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Solar collector comprising an elongate Dewar vessel
Patent number
4,134,391
Issue date
Jan 16, 1979
U.S. Philips Corporation
Faramarz Mahdjuri
F24 - HEATING RANGES VENTILATING