"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8177707 | Method for treating tissue with an implant A method for forming a valve-like mechanism in a body of a mammal having an esophagus extending through a lower esophageal sphincter to a stomach and formed by a wall having a muscle layer and a mucosal layer. The method comprises the step of forming at least one im... | 05/15/2012 |
| 8138597 | Semiconductor assembly that includes a power semiconductor die located in a cell defined by a patterned polymer layer A semiconductor assembly includes a first subassembly comprising a heat sink and a first patterned polymer layer disposed on a surface of the heat sink to define an exposed portion of the first surface. The exposed portion of the first surface extends radially inwar... | 03/20/2012 |
| 8130006 | Apparatus, system and method for testing electronic elements An electronic element testing apparatus for use with a number of probes. Each probe has a lower pole and an upper pole. The apparatus includes: a first plate having a first side and a second side, the first side having an array of lower pole regions disposed thereab... | 03/06/2012 |
| 8110428 | Thin-film photovoltaic devices A method is provided for producing a thin-film photovoltaic device. The method includes forming on a substrate a first thin-film absorber layer using a first deposition process. A second thin-film absorber layer is formed on the first thin-film absorber layer using ... | 02/07/2012 |
| 8086080 | Multiple function digital optical switch A multiwavelength switch is provided. The switch includes at least one optical input for receiving an optical beam and at least two optical outputs. A dispersion element receives the optical beam from the optical input and spatially separates the optical beam into a... | 12/27/2011 |
| 8049271 | Power semiconductor device having a voltage sustaining layer with a terraced trench formation of floating islands A method is provided for forming a power semiconductor device. The method begins by providing a substrate of a second conductivity type and then forming a voltage sustaining region on the substrate. The voltage sustaining region is formed by depositing an epitaxial ... | 11/01/2011 |
| 8048714 | Semiconductor device and method for manufacturing a semiconductor device having improved heat dissipation capabilities A semiconductor device mountable to a substrate includes a semiconductor die and an electrically conductive attachment region having a first attachment surface and a second attachment surface. The first attachment surface is arranged for electrical communication wit... | 11/01/2011 |
| 8035890 | Phase stabilization device for stimulated brillouin scattering phase conjugate mirrors and light amplification apparatus using the same The object of this invention is to provide a phase stabilization device for stimulated brillouin scattering-phase conjugate mirrors and a light amplification apparatus using the phase stabilization device. A light amplification apparatus of the present invention inc... | 10/11/2011 |
| 8012788 | Multi-stage formation of thin-films for photovoltaic devices A method is provided for producing a film of compound material. The method includes providing a substrate and depositing a film on the substrate. The deposited film has a first chemical composition that includes at least one first chemical element and at least one s... | 09/06/2011 |
| 7999999 | Article comprising a multichannel optical amplified transmission system with functional upgrade capabilities and universal modules A universal inline functional module for operation with nonzero average gain G≠0dB over a bandwidth is provided. The module includes at least one optical functional element producing loss over the bandwidth and at least one rare-earth doped fiber segment. The modu... | 08/16/2011 |
| 7945689 | Method and apparatus for transferring files to clients using a peer-to-peer file transfer model and a client-server transfer model A method and apparatus is provided for delivering a content file to a client over a packet-switched network. The method begins by determining a suitable throughput required to deliver the content file to the client. Next, the throughput available in a peer-to-peer n... | 05/17/2011 |
| 7939790 | Method and apparatus for controlling the gain of an avalanche photodiode with fluctuations in temperature A method and apparatus is provided for biasing an avalanche photodiodes (APD). The method includes developing a first output signal s(v1) from the APD when biased with a first bias voltage v1 and developing a second output signal s(v2 | 05/10/2011 |
| 7919888 | Linear drive with a moving, reduced-mass and laterally guided passive unit The invention relates to a linear drive having a stationary active unit (1), a stationary return flow element (11), a movably mounted passive unit in the form of a thin tooth rack (10) and a bearing unit (15), which allows the relative mo... | 04/05/2011 |
| 7915728 | Subassembly that includes a power semiconductor die and a heat sink having an exposed surface portion thereof The semiconductor assembly includes a first subassembly having a heat sink. Solder material is disposed on the exposed portion of a first surface of heat sink. A power semiconductor die is located on the first surface of the heat sink and is thermally coupled theret... | 03/29/2011 |
| 7910396 | Three-stage formation of thin-films for photovoltaic devices A method for producing a film of compound semiconductor includes providing a substrate and a compound bulk material having a first chemical composition that includes at least one first chemical element and a second chemical element. A film is deposited on the substr... | 03/22/2011 |
| 7842534 | Method for forming a compound semi-conductor thin-film A method is provided for fabricating a thin film semiconductor device. The method includes providing a plurality of raw semiconductor materials. The raw semiconductor materials undergo a pre-reacting process to form a homogeneous compound semiconductor target materi... | 11/30/2010 |
| 7837670 | Methods and devices for delivering therapeutic agents into the prostate gland The present invention is directed to the treatment of various ailments associated with the prostate gland, including benign prostate hypertrophy (BPH), cancer and chronic inflammatory diseases. The present invention describes, inter alia, devices, methods and therap... | 11/23/2010 |
| 7806871 | Method and device for tissue removal and for delivery of a therapeutic agent or bulking agent According to an aspect of the present invention, a medical device is provided, which comprises the following: (a) a hollow elongate body (e.g., a elongate cylinder, such as a needle) having distal and proximal ends; and (b) a rotatable member comprising a tissue mor... | 10/05/2010 |
| 7786406 | Laser stent cutting A stent may be manufactured by providing a tube having a longitudinal axis therethrough, providing a stationary source of laser radiation, generating a beam of laser radiation using the source of laser radiation, and cutting a desired pattern into the tube by scanni... | 08/31/2010 |
| 7771387 | Liquid embolic composition delivery devices and methods Devices and methods are provided for delivering fluid components of an embolic mass into a body cavity. A connector, which includes a receiving element, a first port, and a second port, is provided for securing an outer tubular element and an inner tubular element s... | 08/10/2010 |
| 7771347 | Method for treating tissue with an implant A method for forming a valve-like mechanism in a body of a mammal having an esophagus extending through a lower esophageal sphincter to a stomach and formed by a wall having a muscle layer and a mucosal layer. The method comprises the step of forming at least one im... | 08/10/2010 |
| 7764687 | Longest prefix match search technique A router identifies in a data packet an address of a network device. An algorithm determines that the address and a first prefix in a tree data structure match up to a first mask length of the first prefix. The algorithm maintains the first prefix in a temporary sto... | 07/27/2010 |
| 7755102 | High breakdown voltage diode and method of forming same A multiple layer overvoltage protection device is provided. The method begins by providing a substrate having a first impurity concentration of a first conductivity type to define a mid-region layer. A dopant of a second conductivity type is introduced into the subs... | 07/13/2010 |
| 7745885 | High voltage power MOSFET having low on-resistance A power MOSFET is provided that includes a substrate of a first conductivity type. An epitaxial layer also of the first conductivity type is deposited on the substrate. First and second body regions are located in the epitaxial layer and define a drift region betwee... | 06/29/2010 |
| 7741703 | Electronic device and lead frame A lead frame facilitates the handling, positioning, attachment, and/or continued integrity of multiple dies, without the use of multiple separate parts, such as jumpers. The lead frame includes a number of structures, each of which is attached to at least one lead. ... | 06/22/2010 |
| 7738748 | Modular all-optical cross-connect An all-optical, optical cross-connect includes first and second pluralities of multiport optical devices. Each of the first plurality of multiport optical devices have at least one input port for receiving a WDM optical signal and a plurality of output ports for sel... | 06/15/2010 |
| 7737533 | Low voltage transient voltage suppressor with tapered recess extending into substrate of device allowing for reduced breakdown voltage A semiconductor junction device includes a substrate of low resistivity semiconductor material having a preselected polarity. A tapered recess extends into the substrate and tapers inward as it extends downward from an upper surface of the substrate. A semiconductor... | 06/15/2010 |
| 7736976 | Method for fabricating a power semiconductor device having a voltage sustaining layer with a terraced trench facilitating formation of floating islands A method is provided for forming a power semiconductor device. The method begins by providing a substrate of a second conductivity type and then forming a voltage sustaining region on the substrate. The voltage sustaining region is formed by depositing an epitaxial ... | 06/15/2010 |
| D616387 | Bridge rectifier package | 05/25/2010 |
| 7719096 | Semiconductor device and method for manufacturing a semiconductor device A semiconductor device mountable to a substrate is provided. The device includes a semiconductor die and an electrically conductive attachment region having a first attachment surface and a second attachment surface. The first attachment surface is arranged for elec... | 05/18/2010 |
| 7715713 | Method and apparatus for providing multiple optical channel protection switching mechanisms in optical rings A technique for allocating protection-switching mechanisms operates on a per wavelength basis. This allows a designer of an optical network to select a particular protection switching mechanism for a given traffic type, which is usually specific to a particular wave... | 05/11/2010 |
| 7692851 | Article comprising a series expandable erbium-doped fiber amplifier (SE-EDFA) A method for increasing the number of channels amplified by an optical amplifier arrangement is provided. The optical amplifier arrangement includes at least one optical amplifier stage amplifying a first number of channels at a given average gain level. The method ... | 04/06/2010 |
| 7676157 | Method and apparatus for providing gain equalization to an optical signal in an optical communication system An optical switch includes at least one input port for receiving a plurality of channel wavelengths of an optical signal and a plurality of output ports. A plurality of wavelength selective elements are also provided, which each select a channel wavelength from amon... | 03/09/2010 |
| 7666135 | Robotic endoscope An endoscope is provided which comprises an elongated body adapted for insertion into a body lumen, and a plurality of electrically controlled actuators associated with the body which are controllable to impart an orientation to the body that is complimentary to the... | 02/23/2010 |
| 6385169 | Allocation of bandwidth in a packet switched network among subscribers of a service provider A method is provided for allocating bandwidth to a subscriber in a service provider domain that is part of a packet switched network such as the Internet, for example. In accordance with the method, a number of shares of bandwidth are assigned to the subs... | 05/07/2002 |
| 6197618 | Semiconductor device fabrication using adhesives A temporary self-adherence of the individual components in a stack of semiconductor components is accomplished by the use of adhesive bodies either separate from the solder preforms used in the stack or included within the solder in the form of a tacky pa... | 03/06/2001 |
| 5724263 | Automatic temporospatial pattern analysis and prediction in a telecommunications network using rule induction A facility is provided for enhancing an operations support system so that, based on data generated as a result of an event occurring in an associated telecommunications network, the operations support system can predict the likelihood of the event occurri... | 03/03/1998 |
| 5706338 | Real-time communications fraud monitoring system Increased network security is provided by monitoring in real time one or more characteristics or attributes of telephone calls that are placed through the network and notifying the network customer (i.e., the party responsible for paying for the telephone... | 01/06/1998 |
| 5659640 | Integrated waveguide having an internal optical grating A method for forming an optical grating within a waveguide integrated on a substrate includes the step of depositing on a substrate successive layers of material constituting a waveguide such that the waveguide has a periodically varying width along a por... | 08/19/1997 |
| 5629991 | Method for reducing birefringence in optical gratings A method is provided for reducing the polarization shift between different modes of an optical signal propagating in an optical grating having a plurality of waveguides extending in a common plane. The method includes the step of imparting curvature to th... | 05/13/1997 |