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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7145739 | Lightweight optical mirrors formed in single crystal substrate This invention is directed to a process for manufacturing a lightweight mirror from a single crystal material, such as single crystal silicon. As a near perfect single crystal material, single crystal silicon has much lower internal stress than a conventional materi... | 12/05/2006 |
| 6194721 | Uncooled far infrared thermal imaging system An infrared image is directed onto a transducer having a planar array of absorbing discs, on one side. The discs are supported by a thin membrane which sags or bulges as the discs heat up. The discs thus change their spacings with respect to a partially r... | 02/27/2001 |
| 5241836 | Patch for radiative coolers A unique structure for constructing the emissive patch of a spaceborne radiative cooler is shown. The structure has very high emissivity for all angles up to a designed-in maximum angle and near zero emissivity for greater angles. The structure also allow... | 09/07/1993 |
| 4965447 | Chopper for staring infrared systems Incident infrared radiation is focussed through a rotatable disk of germam onto a detector array. The disk has a thickness many times the wavelengths of the incident radiation and is partly covered with a pattern of germanium one-half wavelength of some ... | 10/23/1990 |
| 4849070 | Process for fabricating three-dimensional, free-standing microstructures A sublimable layer is deposited on a substrate, holes are etched through sublimable layer, a thin-layer structure is deposited on portions of the remaining sublimable layer, and a thick structural support material is deposited to cover the sides and bot... | 07/18/1989 |
