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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7483613 | Chromatic dispersion compensating fiber Disclosed are an improved system and a related method for compensating the chromatic dispersion of a given length of a transmission fiber over a given spectral band by employing at least two chromatic dispersion compensating fibers that, with respect to the slope of... | 01/27/2009 |
| 7451772 | Ultrasonic cleaning method and apparatus An apparatus suitable for ultrasonically cleaning objects is disclosed. The apparatus includes a housing and a cleaning chamber within the housing. The apparatus also includes drainer that can be moved between a cleaning position in a lower region of the apparatus a... | 11/18/2008 |
| 7439609 | Doping of gallium nitride by solid source diffusion and resulting gallium nitride structures An improved p-type gallium nitride-based semiconductor device is disclosed. The device includes a structure with at least one p-type Group III nitride layer that includes some gallium, a first silicon dioxide layer on the p-type layer, a layer of a Group II metal so... | 10/21/2008 |
| 7432536 | LED with self aligned bond pad A method is disclosed for attaching a bonding pad to the ohmic contact of a diode while reducing the complexity of the photolithography steps. The method includes the steps of forming a blanket passivation layer over the epitaxial layers and ohmic contacts of a diod... | 10/07/2008 |
| 7427326 | Minimizing degradation of SiC bipolar semiconductor devices A method of forming a bipolar device includes forming at least one p-type layer of single crystal silicon carbide and at least one n-type layer of single crystal silicon carbide on a substrate. Stacking faults that grow under forward operation of the device are segr... | 09/23/2008 |
| 7421172 | Multimode optical fibre having a refractive index profile, optical communication system using same and method for manufacturing such a fibre The invention relates to a multimode optical fibre having a refractive index profile, comprising a light-guiding core surrounded by one or more cladding layers. The present invention furthermore relates to an optical communication system comprising a transmitter, a ... | 09/02/2008 |
| 7395621 | Flat folding promotional structure The invention is a promotional structure, such as a greeting card, which is collapsible to fit into a flat envelope for mailing, and which unfolds into the shape of a recognizable type of building, such as a house. Some of the panels are flexibly joined to one anoth... | 07/08/2008 |
| 7393790 | Method of manufacturing carrier wafer and resulting carrier wafer structures A method is disclosed for preparing carrier wafers for semiconductor device manufacture. The method includes the steps of sorting a plurality of standard carrier wafer blanks into batches by thickness to define a batch of starting carrier wafers that are within a pr... | 07/01/2008 |
| 7393920 | Microwave-assisted peptide synthesis An instrument and process for accelerating the solid phase synthesis of peptides is disclosed. The method includes the steps of deprotecting a protected first amino acid linked to a solid phase resin by admixing the protected linked acid with a deprotecting solution... | 07/01/2008 |
| 7384809 | Method of forming three-dimensional features on light emitting diodes for improved light extraction A method is disclosed for obtaining a high-resolution lenticular pattern on the surface of a light emitting diode. The method comprises imprinting a patterned sacrificial layer of etchable material that is positioned on a semiconductor surface that is in turn adjace... | 06/10/2008 |
| 7374676 | High rate filtration system A high rate, upflow filtration system is described in which a compressible, fibrous lump filtration media is compressed to adjust the porosity and collector size of the media in the bed and to provide a porosity gradient within the bed proceeding from more porous to... | 05/20/2008 |
| 7368368 | Multi-chamber MOCVD growth apparatus for high performance/high throughput In one embodiment the present invention is a method of conducting multiple step multiple chamber chemical vapor deposition while avoiding reactant memory in the relevant reaction chambers. The method includes depositing a layer of semiconductor material on a substra... | 05/06/2008 |
| 7357629 | Apparatus and method for aligning a removable build chamber within a process chamber The invention is a rapid prototype apparatus having a removable build chamber and a plurality of alignments surfaces that can be used to properly align the build chamber with the process chamber with minimal adjustments by a user. In one embodiment, the apparatus co... | 04/15/2008 |
| 7351286 | One hundred millimeter single crystal silicon carbide wafer A method of producing a high quality bulk single crystal of silicon carbide in a seeded growth system is disclosed. The method includes positioning the seed crystal in a crucible while exerting minimal torsional forces on the seed crystal to thereby prevent torsiona... | 04/01/2008 |
| 7348526 | Microwave-assisted chromatography preparation An instrument and associated method are disclosed for preparing samples for column chromatography. The method includes the steps of applying microwave energy to a sample composition containing at least one solvent to encourage a chemical reaction and generate desire... | 03/25/2008 |
| 7338822 | LED fabrication via ion implant isolation A semiconductor light emitting diode includes a semiconductor substrate, an epitaxial layer of n-type Group III nitride on the substrate, a p-type epitaxial layer of Group III nitride on the n-type epitaxial layer and forming a p-n junction with the n-type layer, an... | 03/04/2008 |
| 7339712 | Laser scanning and power control in a rapid prototyping system A laser scanning system in a rapid-protyping system is controlled during vector scanning by providing a commanded-position signal to each of first and second rotary motive devices to rotate respective mirrors of the scanning system, each mirror undergoing accelerati... | 03/04/2008 |
| 7332795 | Dielectric passivation for semiconductor devices A semiconductor device is disclosed that includes a layer of Group III nitride semiconductor material that includes at least one surface, a control contact on the surface for controlling the electrical response of the semiconductor material, a dielectric barrier lay... | 02/19/2008 |
| 7323052 | Apparatus and method for the production of bulk silicon carbide single crystals An apparatus and method for growing bulk single crystals of silicon carbide is provided. The apparatus includes a sublimation chamber with a silicon vapor species phase outlet that allows the selective passage of atomic silicon vapor species while minimizing the con... | 01/29/2008 |
| 7323051 | One hundred millimeter single crystal silicon carbide wafer A method is disclosed for producing a high quality bulk single crystal of silicon carbide in a seeded growth system. The method includes positioning a seed crystal on the seed holder with a low porosity backing material that provides a vapor barrier to silicon carbi... | 01/29/2008 |
| 7316747 | Seeded single crystal silicon carbide growth and resulting crystals A method is disclosed for producing a high quality bulk single crystal of silicon carbide in a seeded growth system and in the absence of a solid silicon carbide source, by reducing the separation between a silicon carbide seed crystal and a seed holder until the co... | 01/08/2008 |
| 7314521 | Low micropipe 100 mm silicon carbide wafer A high quality single crystal wafer of SiC is disclosed having a diameter of at least about 100 mm and a micropipe density of less than about 25 cm−2. ... | 01/01/2008 |
| 7314520 | Low 1c screw dislocation 3 inch silicon carbide wafer A high quality single crystal wafer of SiC is disclosed having a diameter of at least about 3 inches and a 1 c screw dislocation density of less than about 2000 cm−2. ... | 01/01/2008 |
| 7307248 | Method and apparatus for microwave assisted high throughput high pressure chemical synthesis A method and associated instrument are disclosed for increasing the sequential rate at which a series of microwave assisted chemical reactions that potentially generate high pressure can be carried out. ... | 12/11/2007 |
| 7300519 | Reduction of subsurface damage in the production of bulk SiC crystals The invention is an improvement in a method of producing a high quality bulk single crystal of silicon carbide in a seeded sublimation system. The improvement includes etching the front face on each of a first and second SiC seed to a depth of greater than about 20 ... | 11/27/2007 |
| 7299584 | Tackle container with interchangeable inserts The invention is a tackle container that incorporates interchangeable inserts. The inserts secure different kinds of fishing lures and baits. For example, the inserts hold segmented lures within notched upright posts. In this regard, the inserts may be suitably stru... | 11/27/2007 |
| D555387 | Sofa | 11/20/2007 |
| D555386 | Sofa | 11/20/2007 |
| 7296808 | Service cart with recessed drawer handles There is provided a transportable service cart with protective bumpers attached to the vertical corners of the service cart. The service cart of the present invention also comprises drawer handles that do not extend beyond a front surface of the drawers of the servi... | 11/20/2007 |
| 7294324 | Low basal plane dislocation bulk grown SiC wafers A high quality single crystal wafer of SiC is disclosed. The wafer has a diameter of at least about 3 inches (75 mm) and at least one continuous square inch (6.25 cm2) of surface area that has a basal plane dislocation volume density of less than about 50... | 11/13/2007 |
| 7294859 | Methods of treating a silicon carbide substrate for improved epitaxial deposition and resulting structures and devices A method is disclosed for treating a silicon carbide substrate for improved epitaxial deposition thereon and for use as a precursor in the manufacture of devices such as light emitting diodes. The method includes the steps of implanting dopant atoms of a first condu... | 11/13/2007 |
| 7282184 | Microwave assisted chemical synthesis instrument with controlled pressure release An instrument is disclosed for carrying out controlled microwave assisted chemical processes, and that is particularly useful for handling relatively small samples. The instrument includes a microwave-transparent reaction vessel with an open mouth, a pressure-resist... | 10/16/2007 |
| 7279115 | Method to reduce stacking fault nucleation sites and reduce V drift in bipolar devices A method is disclosed for preparing a substrate and epilayer for reducing stacking fault nucleation and reducing forward voltage (Vf) drift in silicon carbide-based bipolar devices. The method includes the steps of etching the surface of a silicon carbide... | 10/09/2007 |
| 7275705 | Spinning reel having two-piece frame and leg assembly with concealable attachment points An open-faced spinning reel assembly having a two-piece frame and leg assembly in which the leg has a tab extending therefrom that is secured to the frame so as to be concealed in the final assembly. The frame can be attached to the tab with screws or other fastener... | 10/02/2007 |
| 7264605 | Knee support device for applying radial pressure An adjustable support device for the knee provides in one embodiment a strap, a primary tensioning device positioned on the strap, and a secondary tensioning device carried on the strap. A preferred embodiment of the device includes an elongate bar secured to the st... | 09/04/2007 |
| 7259402 | High efficiency group III nitride-silicon carbide light emitting diode A method and resulting structures are disclosed for fabricating a high efficiency high extraction light emitting diode suitable for packaging. The method includes the steps of adding a light emitting active portion of wide-bandgap semiconductor material to a conduct... | 08/21/2007 |
| 7238770 | Methods of making imide-modified polyester resins The present invention relates to methods of making imide-modified polyester imide resins. The present invention further relates to forming these imide-modified polyester imide resins into articles, such as preforms, bottles, containers, sheets, films, fibers, and in... | 07/03/2007 |
| 7229688 | Method and apparatus for high denier hollow spiral fiber A self-texturing hollow fiber that exhibits a desirable tendency to coil rather than to bend sharply or zig-zag. In one embodiment the invention is a hollow polymer filament having a generally cylindrical cross-section. The filament is further defined by a cylindric... | 06/12/2007 |
| 7220591 | Method and apparatus for rapid fat content determination A method and apparatus for rapidly and accurately determining the fat and oil content of a sample using microwave drying and NMR analysis is disclosed. The method and apparatus incorporate a low mass, porous, hydrophilic and lipophilic sample pad that ensures that t... | 05/22/2007 |
| 7214913 | Controlled flow instrument for microwave assisted chemistry with high viscosity liquids and heterogeneous mixtures A controlled-flow microwave instrument for chemical synthesis using heterogeneous or highly viscous starting materials includes a microwave source for generating electromagnetic radiation in the microwave frequencies, a microwave cavity in wave communication with th... | 05/08/2007 |
