Optical: systems and elements – Having significant infrared or ultraviolet property – Multilayer filter or multilayer reflector
Reexamination Certificate
2008-07-29
2008-07-29
Assaf, Fayez G. (Department: 2872)
Optical: systems and elements
Having significant infrared or ultraviolet property
Multilayer filter or multilayer reflector
C359S361000, C359S585000, C359S590000, C359S900000
Reexamination Certificate
active
07405872
ABSTRACT:
A combination of filters for filtering selected wavelengths of electromagnetic radiation is provided on a transparent substrate such as a plastic film or glazing of a window. The combination of filters prevents or attenuates the passage of wavelengths through the substrate into a building, where the passage of the wavelengths into the building could adversely affect people or machinery within the building. The combination of filters is useful improve wireless networks performance by blocking or attenuating undesired electromagnetic interference, and radio frequency interference.
REFERENCES:
patent: 5811923 (1998-09-01), Zieba et al.
Simpson Deron
Winckler Lisa Y.
Assaf Fayez G.
ASTIC Signals Defenses LLC
CPFilms Inc.
Hogan & Hartson LLP
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