Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8169680 | Polymers responsive to radiation pressures Polymers that undergo a reversible phase change in response to being exposed to a light from a laser having a radiation pressure greater than a threshold level. The phase changeable polymers have the ability to reduce the intensity of the laser and can advantageousl... | 05/01/2012 |
| 8134769 | Imaging apparatus A plurality of pixels arranged into two dimensions; a differential processing means for effecting a differential processing between a reset level of the pixel and a signal level changing correspondingly to a light signal incident on the pixel so as to produce an ima... | 03/13/2012 |
| 8107150 | Photochromic diarylethene containing coordination compounds and the production thereof Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorp... | 01/31/2012 |
| 8089678 | Clear to circular polarizing photochromic devices and methods of making the same The present invention provides optical elements comprising a photochromic linear polarizing element and a birefringent layer that circularly or elliptically polarizes transmitted radiation. The photochromic linear polarizing element comprises a substrate and either:... | 01/03/2012 |
| 8077373 | Clear to circular polarizing photochromic devices The present invention provides composite optical elements including a photochromic linear polarizing element and a birefringent layer such that composite optical element circularly or elliptically polarizes transmitted radiation. The photochromic linear polarizing e... | 12/13/2011 |
| 7999989 | Photochromic film, photochromic lens comprising the same, and method of manufacturing photochromic lens The present invention relates to a photochromic film comprising a photochromic dye and a resin component. The photochromic film has a nanoindentation hardness of equal to or greater than 800 nm on at least one of surfaces, surface A, thereof. The present invention f... | 08/16/2011 |
| 7990600 | Transmissive, optically addressed, photosensitive spatial light modulators and color display systems incorporating same An optically addressed, photoconductive spatial light modulator (SLM) operates in a transmissive mode and is capable of modulating a wide spectrum of visible light. There is no pixel structure or native pixel resolution in the SLM. The SLM has no photodiodes and doe... | 08/02/2011 |
| 7978391 | Polarizing, photochromic devices and methods of making the same A liquid crystal cell including a first substrate having a first surface; a second substrate having a second surface, wherein the second surface of the second substrate is opposite and spaced apart from the first surface of the first substrate so as to define a regi... | 07/12/2011 |
| 7961372 | Photochromic films and method for manufacturing the same The present invention provides a photochromic film which is formed by curing a photochromic composition and includes a multifunctional (metha)acrylate-based monomer that has two or more functional groups, and a photochromic dye, a product including the same, and a m... | 06/14/2011 |
| 7884992 | Photochromic optical article A photochromic optical article comprises a substrate, and a photochromic coating coated on an outer surface of the substrate and having at least two photochromic layers. Each of the photochromic layers has a composition that contains a carrier and at least one photo... | 02/08/2011 |
| 7847998 | Polarizing, photochromic devices and methods of making the same Provided is an optical element including: a substrate; at least one at least partially ordered orientation facility connected to at least a portion of the substrate; and an at least partial coating connected to at least a portion o... | 12/07/2010 |
| 7755826 | Photochromic diarylethene-containing coordination compounds and the production thereof Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorp... | 07/13/2010 |
| 7573630 | Photochromatic effect for polycarbonate glazing applications A window assembly having photochromatic properties is described. The window assembly includes a substrate being adjacent to a coating. A photochromatic film is located between the substrate and the coating, whereby the photochromatic film darkens when the window ass... | 08/11/2009 |
| 7570411 | Optical limiter having trimetallic nitride endohedral metallofullerence films An exemplary optical limiter device (100) has an optically transmissive substrate (102) and a layer (104) on a first surface (106) of the substrate, the layer having a trimetallic nitride endohedral metallofullerene. The layer can be a th... | 08/04/2009 |
| 7505189 | Polarizing, photochromic devices and methods of making the same Provided is an optical element including: a substrate; and at least one at least partially aligned thermally reversible photochromic-dichroic compound connected to at least a portion of the substrate and having an average absorptio... | 03/17/2009 |
| 7471436 | Polarizing, photochromic devices and methods of making the same A security element connected to at least a portion of a substrate, the security element including an at least partial coating having a first state and a second state connected to at least a portion of the substrate, the at least partial coating being adapted to swit... | 12/30/2008 |
| 7466469 | Polarizing, photochromic devices and methods of making the same A method of making an optical element including forming an at least partial coating of at least one at least partially aligned thermally reversible photochromic-dichroic compound on at least a portion of a substrate. ... | 12/16/2008 |
| 7457024 | Image display device The image display device of the present invention includes: a display layer that comprises a photochromic compound and whose regions, which have been irradiated with visible light, can be optically rewritten in a color corresponding to the color of visible light irr... | 11/25/2008 |
| 7457025 | Polarizing, photochromic devices and methods of making the same A method of making a composite element including: forming a sheet of an at least partially ordered liquid crystal polymer having at least a first general direction, a liquid crystal material having at least a second general direction distributed within at least a po... | 11/25/2008 |
| 7441893 | Layered product and method of producing the same A layered product comprising an optical substrate having, on at least one surface thereof, a photochromic surface layer constituted by a resin in which a photochromic compound is dispersed, and an ultraviolet ray-absorbing film of a thickness of 0.1 to 100 μm forme... | 10/28/2008 |
| 7443561 | Deep quantum well electro-absorption modulator Double well structures in electro-absorption modulators are created in quantum well active regions by embedding deep ultra thin quantum wells. The perturbation introduced by the embedded, deep ultra thin quantum well centered within a conventional quantum well lower... | 10/28/2008 |
| 7414767 | Semiconductor optical device and semiconductor optical package using the same A semiconductor optical device, which includes a semiconductor substrate, an electro-absorption modulator, and at least one optical device is monolithically integrated on the semiconductor substrate. An insulative layer surrounds the electro-absorption modulator and... | 08/19/2008 |
| 7408692 | Process for producing three-dimensional structure A process for producing a periodic structure comprises the steps of preparing a working object, the property of which changes in view of a photoreaction caused by an exciting energy, generating a light having a photonic energy of intensity of one fraction of natural... | 08/05/2008 |
| 7394585 | Polarizing, photochromic devices and methods of making the same A method of making an optical element including: forming an at least partial coating of an alignment medium to at least a portion of at least one surface of a substrate and at least partially ordering at least a portion of the alig... | 07/01/2008 |
| 7383062 | PC card and method of using same A wireless PC card includes a housing portion including a width and a lens extending substantially the width of the housing portion; a light pipe housed by the housing portion; a substantially flat plug portion extending from the housing portion and configured to be... | 06/03/2008 |
| 7370016 | Music distribution systems Music is blanket transmitted (for example, via satellite downlink transmission) to each customer's user station where selected music files are recorded. Customers preselect from a list of available music in advance using an interactive screen selector, and pay only ... | 05/06/2008 |
| 7365896 | Photochromic device A photochromic device having a photochromic layer including a photochromic material which exhibits absorbance in a visible region upon being sensitized by a light having a wavelength of not less than 700 nm, and an ultraviolet light blocking device for blocking an u... | 04/29/2008 |
| 7359104 | Polarizing, photochromic devices and methods of making the same A method of making an optical element including: (a) forming an at least partial coating on at least a portion of a substrate; and (b) adapting at least a portion of the at least partial coating to switch from a fi... | 04/15/2008 |
| 7356969 | Electronically shaded thin film transparent monochromatic liquid crystal display laminated window shading system An electronically shaded glass window system is described that provides a progressively darkening window, based on either user input or detection of ambient light. This invention is appropriate for use in commercial buildings, residential buildings, public areas and... | 04/15/2008 |
| 7357523 | Illuminating keyboards An illuminating keyboard is provided. An illuminating keyboard includes a key module, a light guide plate, and a light source. The key module includes one or more keys. The light guide plate is disposed beneath the key module and includes a plurality of openings. Th... | 04/15/2008 |
| 7355161 | Systems and methods for controlling windows with variable light transmission Systems and methods for controlling windows with variable light transmission are disclosed. In one embodiment, a system includes a sensor adapted to receive a light intensity, a user input device adapted to receive a user input value, a window having a variable tran... | 04/08/2008 |
| 7354965 | Azo compound, colorant-containing curable composition, and color filter and method of producing the same The present invention provides a novel azo compound, a curable composition comprising a colorant superior in the light-fastness and heat resistance of a dye, pattern-forming characteristics (developing characteristics) and liquid preserving characteristics, a color ... | 04/08/2008 |
| 7355775 | Photochromic diarylethene-containing coordination compounds and the production thereof Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorp... | 04/08/2008 |
| 7349137 | Polarizing, photochromic devices and methods of making the same An optical element including: a substrate; and an at least partial coating having a first state and a second state on at least a portion of the substrate, the at least partial coating being adapted to be circularly... | 03/25/2008 |
| 7349138 | Polarizing, photochromic devices and methods of making the same Provided is a composite optical element including: a substrate; an at least partially ordered polymeric sheet connected to at least a portion of the substrate; and at least one thermally reversible... | 03/25/2008 |
| 7342112 | Photochromic compounds Various non-limiting embodiments disclosed herein relate generally to photochromic compounds, which may be thermally reversible or non-thermally reversible, and articles made therefrom. Other non-limiting embodiments relate to photochromic-dichroic compounds, which ... | 03/11/2008 |
| 7336431 | Image reading device and image forming device A device includes a light source; a first guiding unit that guides the light from the light source to an object at prescribed incident angles including a first incident angle and a second incident angle; a signal generating unit that receives light and that generate... | 02/26/2008 |
| 7303790 | Electron cyclotron resonance plasma deposition process and device for single-wall carbon nanotubes and nanotubes thus obtained Electron cyclotron resonance plasma deposition process and device for single-wall carbon nanotubes (SWNTs) on a catalyst-free substrate, by injection of microwave power into a deposition chamber comprising a magnetic confinement structure with a magnetic mirror, and... | 12/04/2007 |
| 7295166 | Method for producing a wave-transmitting cover The wave-transmitting cover comprises a transparent resin layer, a base layer and a decorative layer, and the decorative layer contains a lustered piece. The method for producing it comprises a film-forming step of forming a film that has a print face and a depositi... | 11/13/2007 |
| 7289264 | Passive broad long wave and mid-wave infrared optical limiting prism Method for limiting the amount of radiation impinging on a radiation sensitive detector (RSD) responsive to signals having infrared wavelengths of approximately 3 to 14 microns. Method includes: directing radiation signal through prism toward RSD; permitting radiati... | 10/30/2007 |
