Thermophotovoltaic technology
Patent 4976606 Issued on December 11, 1990. Estimated Expiration Date: 
April 28, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 28, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2460314 2840145 3331707 3751303 3929510 Thermophotovoltaic converter and cell for use therein Conversion of solar to electrical energy Thermophotovoltaic technology Narrow band thermal emitter Photovoltaic control system Patent #: 4793799 InventorAssigneeApplicationNo. 344695 filed on 04/28/1989US Classes:431/79, Photoelectric sensor136/253, Radioactive, ionic, or thermo photo431/100INCANDESCENT MANTLEExaminersPrimary: Price, Carl D.Attorney, Agent or FirmInternational ClassF23N 005/08AbstractA high output, narrow band thermally energized radiation source comprises a rare earth oxide radiator member that has a cross-sectional dimension in the range of five to thirty micrometers, the rare earth oxide radiator member, when heated to about 1700° C., having a concentrated radiated flux over the 400-2500 nanometer wavelength range such that at least 50% of the radiated flux is within a spectral band that is less than 400 nanometers wide.Other References
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