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| Number | Title | Issue Date |
| 8132375 | Skylight cover with prismatic dome and cylinder portions A skylight cover has an upper dome portion formed with plural prism elements and a lower cylindrical portion extending from the open periphery of the dome portion down to terminate in an open lower end through which light can pass. A cylindrical prism ring is positi... | 03/13/2012 |
| 8082705 | Skylight tube with reflective structured surface A skylight shaft substrate is rendered internally reflected in several ways. To limit the formation of focal points that can lead to hot spots as light travels down the shaft, the shaft substrate is formed with dimples or longitudinal corrugations. ... | 12/27/2011 |
| 8018653 | Skylight collimator with multiple stages A non-specular skylight collimator has at least two axially successive collimator segments from top to bottom, with the segments becoming successively less flared from top to bottom. A skylight diffuser assembly typically covers the open end of the bottom segment. | 09/13/2011 |
| 7957065 | Skylight collimator with multiple stages A non-specular skylight collimator has at least two axially successive collimator segments from top to bottom, with the segments becoming successively less flared from top to bottom. A skylight diffuser assembly typically covers the open end of the bottom segment. | 06/07/2011 |
| 7954281 | Skylight tube with infrared heat transfer A skylight shaft substrate has a film or coating on its inside surface that reflects visible light while transmitting IR to the tube substrate, which can have a satin black and/or other IR absorbing interior and anodized or other high emissivity exterior to convey h... | 06/07/2011 |
| 7546709 | Tubular skylight dome with variable prism The inside surface of a cover for a skylight is molded to have a variable prism that directs low-angle light into the skylight tube and that reflects away some high-angle light, to achieve a more constant light output over the course of the day. The prism is establi... | 06/16/2009 |
