patent · · added 2 months ago
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13,573 items
August 2026
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patent · · added 2 months ago
Mass transport heat exchanger method and apparatus for use in ocean thermal energy exchange power plants
Ocean thermal energy conversion (OTEC) uses a fluid, such as ammonia, hea by high-temperature surface water to provide a turbine-driving working gas. To condense the gas for re-use...
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patent · · added 2 months ago
Method and apparatus for controlling insolation in a building
Machine transcription of the US4470405A patent scan, 8 pages.
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patent · · added 2 months ago
Method and apparatus for controlling insolation in a building
Machine transcription of the WO1983002311A1 patent scan, 22 pages.
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patent · · added 2 months ago
Cable-mounted flight conveyer
Machine transcription of the US2595941 patent scan, 7 pages.
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patent · · added 2 months ago
Solar heat absorbing system
Improved solar heat recovery is provided through the use of a system which embodies passing air or other gaseous stream with entrained black body particles from a solar heating zon...
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patent · · added 2 months ago
Solar-heat drier
Machine transcription of the US1678711 patent scan, 4 pages.
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patent · · added 2 months ago
Solar energy collector with moving belt absorber
Solar energy collection device uses a motor driven moving endless belt absorber member which is mounted in a glass covered collector housing so as to present a flat plate configura...
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patent · · added 2 months ago
Fresnel lens
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patent · · added 2 months ago
Solar cell module and method for its production
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patent · · added 2 months ago
Multi-junction solar cells with a homogenizer system and coupled non-imaging light concentrator
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patent · · added 2 months ago
Free-form lenticular optical elements and their application to condensers and headlamps
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patent · · added 2 months ago
Etendue-conserving illumination-optics for backlights and frontlights
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patent · · added 2 months ago
Curing light instrument
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patent · · added 2 months ago
Solar collector and method
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patent · · added 2 months ago
Solar collector and method
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patent · · added 2 months ago
Solar collector and method
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patent · · added 2 months ago
Door light
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patent · · added 2 months ago
LED with compound encapsulant lens
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patent · · added 2 months ago
Light guide exposure device
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patent · · added 2 months ago
Brightness-enhancing film
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patent · · added 2 months ago
LED luminance-enhancement and color-mixing by rotationally multiplexed beam-combining
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patent · · added 2 months ago
Multiple light-emitting element heat pipe assembly
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patent · · added 2 months ago
Non-imaging facet based optics
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patent · · added 2 months ago
Concentrator for solar radiation and use thereof
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patent · · added 2 months ago
Concentrator for solar radiation and use thereof
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patent · · added 2 months ago
Concentrator for solar radiation and use thereof
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patent · · added 2 months ago
Dental light device
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patent · · added 2 months ago
Curing light device
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patent · · added 2 months ago
Dental light device