Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8067259 | Method of producing high performance photovoltaic and thermoelectric nanostructured bulk and thin films Embodiments of the invention provide methods of forming photovoltaic or thermoelectric materials, including photovoltaic or thermoelectric films. In one embodiment, the invention provides a method of forming a photovoltaic material, the method comprising: depositing... | 11/29/2011 |
| 7850777 | Method of preparing semiconductor nanocrystal compositions A semiconductor nanocrystal composition comprising a Group V to VI semiconductor material and a method of making same. The method includes synthesizing a semiconductor nanocrystal core, where the synthesizing includes dissolving a Group V to VI anion gas in a first ... | 12/14/2010 |
| 7811470 | Water based colorants comprising semiconductor nanocrystals and methods of making and using the same A water based colorant that includes a polymer emulsion and semiconductor crystals capable of emitting light. The colorants include paints, inks and/or dyes can be applied to various substrates. ... | 10/12/2010 |
| 7482059 | Semiconductor nanocrystal complexes comprising a metal coating and methods of making same A semiconductor nanocrystal complex including a metal layer formed on the outer surface of a semiconductor nanocrystal core after synthesis of the semiconductor nanocrystal core and a method for preparing a nanocrystal complex comprising forming a metal layer on a s... | 01/27/2009 |
| 7341734 | Personal care compositions comprising semiconductor nanocrystals and methods of making and using the same A personal care composition that includes a personal care ingredient and semiconductor nanocrystals. A method of protecting at least a portion of a body against ultraviolet radiation by applying a personal care composition is also provided. ... | 03/11/2008 |
| 7200302 | Planar lightwave Fabry-Perot filter An optical filter includes a first mirror, a cavity coupled to the first mirror, and a second mirror coupled to the cavity. The first and second mirrors are formed of periodic trenches etched into the surface of a waveguide. ... | 04/03/2007 |
| 7192780 | Fluorescent lifetime biological detection and imaging using water-stable semiconductor nanocrystals A method of detecting target biological molecules in a target sample is provided. The method includes using spectral, temporal, and polarization characteristics of emitted light from water-stable semiconductor nanocrystal complexes to detect the presence of target b... | 03/20/2007 |
| 7095959 | Optical time division multiplexing/demultiplexing system A multiplexing/demultiplexing system has a multiplexor that includes a first plurality of optical switches having a plurality of outputs and a first plurality of optical delay elements coupled to the optical switches. A source of optical light is coupled to the dela... | 08/22/2006 |
| 6872450 | Water-stable photoluminescent semiconductor nanocrystal complexes and method of making same A method for preparing water-stable semiconductor nanocrystal complexes that can be stably coupled to tertiary molecules using a self-assembled coating of diblock polymers. The diblock polymers have hydrophilic ends containing hydrophilic functional groups and hydro... | 03/29/2005 |
| 6710911 | Optical wavelength converter An optical wavelength converter converts an optical input signal having a first wavelength into an optical output signal having a second wavelength. The wavelength converter includes a saturable absorber switch having a control beam waveguide and an input waveguide.... | 03/23/2004 |
| 6697548 | Fabry-perot opitcal switch having a saturable absorber A Fabry-Perot optical switch includes a saturable absorber surrounded by a pair of mirrors. Coupled to the saturable absorber is an input waveguide, an output waveguide, and a control beam waveguide. In the absence of light input to the control beam waveg... | 02/24/2004 |
| 6611640 | Optical dispersion compensator An optical dispersion compensator includes a saturable absorber. Coupled to the saturable absorber is a pre-amplifier and a post-amplifier. The saturable absorber compresses optical pulse signals based upon the amplitude envelope of the optical pulse in o... | 08/26/2003 |
| 6571028 | Optical switch having a saturable absorber An optical switch includes a saturable absorber. Coupled to the saturable absorber is an input waveguide, an output waveguide, and a control beam waveguide. In the absence of light input to the control beam waveguide, the saturable absorber prevents an in... | 05/27/2003 |
