baber/WOPTO huggingface dataset:
Patent CA-2382955-A1 (CA)
Inventor: GOSELE ULRICH
IPC: G02B6/122
Filed: 2002-04-23
Abstract: The present invention provides a method for fast switching of optical properties in photonic crystals using pulsed/modulated free-carrier injection. The results disclosed herein indicate that several types of photonic crystal devices can be designed in which free carriers are used to vary dispersion curves, stop gaps in materials with photonic bandgaps to vary the bandgaps, reflection, transmission, absorption, gain, or phase. The use of pulsed free carrier injection to control the properties of photonic crystals on fast timescales forms the basis for all-optical switching using photonic crystals.  Ultrafast switching of the band edge of a two-dimensional silicon photonic crystal is demonstrated near a wavelength of 1.9 µm. Changes in the refractive index are optically induced by injecting free carriers with 800 nm, 300 fs pulses. Band-edge shifts have been induced in silicon photonic crystals of up to 29 nm that occurs on the time-scale of the pump pulse. The present invention also provides a method of producing a virtual or temporary photonic crystal using free carrier injection into pure semiconductors, bulk or thin film, in which the carriers are generated in patterns which create a patterned refractive index contrast used to steer light beams in the semiconductor while it is being pulsed.
Patent CA-2383579-A1 (CA)
Title: Electromagnetically controlled butterfly thermostat valve
Inventor: HU FUZHENG
IPC: F01P7/16
Filed: 2002-04-26
Abstract: An improved cooling system for an internal combustion engine is disclosed. The system utilizes an electronically controlled butterfly valve to control coolant flow between the engine and a radiator, thereby maintaining the engine temperature at a substantially optimum temperature. The valve includes a valve housing having an inlet port in fluid communication with an outlet port. A valve core is seated in the housing for selectively opening and closing the outlet port. A driving mechanism is operatively coupled to the valve core for positioning the valve core between open and closed positions relative to the outlet port. A damping mechanism is coupled between the driving mechanism and the valve core for preventing the driving mechanism from locking in the open or closed position during loading of the valve core with the housing and inlet or outlet ports.
Patent CA-2384138-A1 (CA)
Title: Process for the production of zwitterionic polyamines
Inventor: BORZYK OLIVER
IPC: C08G65/26
Filed: 2000-10-10
Abstract: A process for the production of zwitterionic polyamines by sulfation of alkoxylated and quaternized amines and subsequent neutralization which comprises continuously sulfating an alkoxylated and quaternized polyamine having at least two tertiary or quaternary amino nitrogen atoms in the molecule and containing at least one quaternized nitrogen atom, in the form of a film having a thickness of from 100 µm to 4 mm in the absence of a solvent with a sulfur trioxide-containing inert gas at a temperature of up to 90 ~C.
Patent CA-2384962-A1 (CA)
Title: Highly stable packaging substrates and brominated indane derivatives
Inventor: SCHWIND DAVID
IPC: H05K1/03
Filed: 2000-09-14
Abstract: A method of producing a highly stable packaging substrate in which are provided a first precursor having a first backbone and a first ethynyl group, and a second precursor having a second backbone and a second ethynyl group.  Furthermore provided is a crosslinker having a first and a second reactive group. The first precursor, the second precursor, the crosslinker, and a solvent are applied onto a surface to form an electrically insulating layer.  The first ethynyl group is reacted with the first reactive group in a first carbon-carbon bond formation reaction and the second ethynyl group is reacted with the second reactive group in a second carbon-carbon bond formation reaction to crosslink the first backbone with the second backbone, thereby forming the packaging substrate. The solvent is removed in a further step.
Patent CA-2386521-A1 (CA)
Inventor: ANDERSEN DORTHE KJAERULFF
IPC: A63H33/08
Filed: 2000-09-05
Abstract: A toy building set comprising a plurality of toy building elements (1, 3) provided with complementary coupling means. At least one of the toy building elements (3) is/are provided with at least one groove (4) provided in an outwardly facing face of the toy building element (3), said groove (4) being able to receive and frictionally secure the edge of a toy building sheet element (5, 5a). The toy building sheet element (5, 5a) is planar with an even thickness that slightly exceeds the narrowest width of the groove (4) in the second toy building element (3), and it is made of a self-supporting, soft, elastically deformable, and form-stable material.
Patent CA-2386947-A1 (CA)
Title: Breakaway devices for stabilizing dental casts
Inventor: GUNDERSON RONALD BRUCE
IPC: A61C11/00
Filed: 2000-10-24
Abstract: A device for efficiently, accurately and consistently securing dental casts while an articulator is attached thereto includes a spine (120) connecting a first stabilizing pad (128) at one end to a second stabilizing pad (130) at an opposite end. The device includes a breakaway feature which allows a connection between the casts to be broken with manual force. The first stabilizing pad and the second stabilizing pad are secured to maxillary and mandibular casts with an adhesive or the like, or by other methods such as magnets, to create a rigid connection between the accurately related maxillary and mandibular casts. The breakaway feature allows a technician to easily break the connection between the maxillary and mandibular casts with manual force after the articulator has been attached to the casts.
Patent CA-2388975-A1 (CA)
Title: Minimum contention, distributed wavelength assignment in optical transport networks
Inventor: QURESHI MUHAMMAD A
IPC: H04B10/27
Filed: 2002-06-05
Abstract: An optical transport network comprises a number of nodes, or routers, which are coupled together via optical fibers. When a physical link comes up between a node and a neighboring node, a handshake between the node and the neighboring node recognizes the link such that the node, and the neighboring node, include it in respective link assignment tables. In addition, the node and the neighboring node negotiate a predefined sequence for assigning link resources from their respective assignment tables for satisfying future connection requests.
Patent CA-2392886-A1 (CA)
Title: Apparatus and method for assigning a common packet channel in a cdma communication system
Inventor: KOO CHANG-HOI
IPC: H04B1/707
Filed: 2000-11-29
Abstract: A method for broadcasting channel information, available channel and data ra te of a base station in a CDMA communication system. The base station receives information indicating that a mobile station has data to transmit, over an access preamble channel. The base station transmits use status information o f physical channels and maximum available data rate information on a status indicator channel. The mobile station receives the use status information of  physical channels and the maximum available data rate information through th e status indicator channel from a base station. The mobile station transmits t o the base station an access preamble for requesting allocation of a given physical channel determined depending on the use status information and the maximum available data rate information.
Patent CA-2393076-A1 (CA)
Title: Transverse integrated optic interferometer
Inventor: HARTMAN NILE F
IPC: G01N21/77
Filed: 2000-11-30
Abstract: An interferometer for detecting a property of an environment includes a light beam source, two planar waveguides and a phase difference detector. The planar waveguides are disposed parallel to each other and define a cavity between them. Each waveguide includes two couplers for respectively coupling and then decoupling the beam of light in and out of the respective waveguide. The two portions of light outcoupled from the waveguides are combined and detected by the phase difference detector. The phase difference changes according to the substance which flows through the cavity, and the coatings applied between the waveguides and the substance.
Patent CA-2399562-A1 (CA)
Inventor: LIEPER DAN S
IPC: E05C9/02
Filed: 2001-02-01
Abstract: L'ensemble serrure à mortaiser multipoint comprend une têtière étendue affleurant le bord d'une porte et à laquelle est raccordée une serrure à mortaiser, et une paire de mécanismes de verrouillage à pêne à crochet fixés à la têtière, au-dessus et au-dessous de la serrure à mortaiser. Un actionneur allongé, qui est de préférence une tige plate montée coulissante à l'arrière de la têtière, agit de façon à étendre et rétracter les pênes à crochet de manière synchrone avec un pêne dormant de la serrure à mortaiser. L'actionneur est raccordé entre un bras du pêne dormant de la serrure à mortaiser qui commande le pêne dormant et les mécanismes de verrouillage à pêne à crochet. Le bras d'un pêne dormant est commandé de manière traditionnelle par une clé ou un loquet à poussier, et sa forme permet d'actionner d'une main l'ensemble serrure à mortaiser multipoint.
Patent CA-2400323-A1 (CA)
Title: Lipides oculaires hypoallergeniques
Inventor: USANSKY HELEN H
IPC: A61K9/00
Filed: 2001-02-05
Abstract: La présente invention concerne des composés représentés par la formule générale (1) et convenant comme agents oculaires hypoalergéniques, en présentant l'avantage de ne pas faire intervenir pour leur action le récepteur de la prostaglandine FP. Dans cette formule générale (I), les symboles sont tels que définis dans la spécification. Plus particulièrement, on a pu synthétiser sous une forme sensiblement pure le composé PGF¿2.alpha.? 1-éthanolamide, représenté par la formule particulière (II), et dont il est apparu qu'il est naturellement présent dans du tissu mammalien, et qu'il est capable d'abaisser la pression intraoculaire dans l'oeil du mammifère, sans pour autant faire intervenir le récepteur de la prostaglandine FP, contrairement au mode d'action de la plupart des hypotenseurs oculaires prostaglandiniques.
Patent CA-2401193-A1 (CA)
Title: Process for forming bioabsorbable implants
Inventor: TUNC DEGER
IPC: B29C48/38
Filed: 2001-12-20
Abstract: A process for forming a rod of bioabsorbable polymeric material includes extruding the material at a temperature above its melting point at a controlled rate of between 4 to 20 feet per minute to form a continuous rod (12). The continuous rod (12) is then cooled by passing the rod through a cooling bath to cause nucleation.  The continuous rod (12) is passed through a first puller (28) running at least at the same speed as the extruder. A second puller (30) is provided which is moving faster than the first puller (28) so that the continuous rod is elongated at a ration of between 2 and 12 times. During this elongation, the rod (12) is heated to a temperature of between 55 °C and 140 °C in an oven located between the first and second pullers. The rod (12) is annealed at a temperature of between 70 °C and 110 °C after being elongated but prior to exiting the second puller (30). Upon exiting the second puller (30), the tension in the rod (12) is released and the continuous rod is then allowed to cool. A cutting station (50) is then provided to cut the continuous rod into desired lengths.
Patent CA-2404079-A1 (CA)
Inventor: NESTOR TOD A
IPC: G06Q10/00
Filed: 2001-03-22
Abstract: Published without an Abstract
Patent CA-2405790-A1 (CA)
Title: Dishwasher
Inventor: TODD ROBERT WILLIAM
IPC: A47L15/42
Filed: 2001-04-09
Abstract: A washing appliance such as a dishwasher where a top-load-ing wash chamber is slidable out of cabinet for loading and unloading has a cabinet-mounted chamber lid (1) which is power driven down onto the open top of the wash chamber during the washing cycle. Linear actuators or motors (7) mounted in opposite sides of the appliance cabinet are coupled to opposite sides of the lid (1) to pull the lid (1) down when the chamber has been slid back into the cabinet.   In a preferred embodiment rotating dc motors (7) are used to rotate a threaded nut which in turn produces linear motion in a threaded shaft (6) engaged within the nut and connected to the lid.
Patent CA-2406295-A1 (CA)
Title: Use of aqueous brightener preparations for brightening natural and synthetic materials
Inventor: NYSSEN PETER-ROGER
IPC: D06L4/621
Filed: 2002-10-02
Abstract: The invention relates to a method of optically brightening natural or synthetic materials with aqueous brightener preparations containing (a) 15 to 85% by weight of at least one water-soluble optical brightener, and (b) optionally 85 to 15% by weight of water, wherein the temperature of the preparation is 40 to 98°C.
Patent CA-2409697-A1 (CA)
Inventor: NILSSON MARIANNE
IPC: C07D277/84
Filed: 2001-05-22
Abstract: La présente invention concerne des composés de la formule (II) et des compositions pharmaceutiques contenant ces composés. L'invention concerne également leurs procédés de préparation ainsi que l'utilisation de ces composés en médecine et pour la préparation de médicaments ayant une action sur l'enzyme humaine 11-.beta.-hydroxystéroïde-déshydrogénase de type 1.
Patent CA-2410591-A1 (CA)
Title: Use of exogenous lactic bacteria strain against actinomyces naeslundii related diseases
Inventor: STINGELE FRANCESCA
IPC: A61K8/99
Filed: 2001-05-30
Abstract: The use of a lactic bacteria strain that is exogenous to the oral microflora , which has been selected for its ability to adhere the pellicle of the teeth and to produce a growth inhibition factor, for the preparation of a composition intended for reducing dental plaque and for treating or preventi ng root caries and other diseases related to Actinomyces naeslundii in mammals.
Patent CA-2411954-A1 (CA)
Inventor: YIN HUJUN
IPC: H04W28/08
Filed: 2002-11-15
Abstract: A network having distribution of access point loading includes access points to which mobile stations can associate themselves based upon access point beacon signal levels and loading levels for the various access points. A mobile station receives beacon signals from various access points and determines a signal strength for the received beacon signals. The mobile station also receives access point loading information from the access points. The mobile station associates with an access point based upon the access point beacon signal strengths and the access point loading information.
Patent CA-2412038-A1 (CA)
Inventor: LEUNG KIN K
IPC: H04L1/20
Filed: 2002-11-18
Abstract: A method for setting and adjusting MAC fragmentation threshold for IEEE 802.11 networks operating at different data rates is presented. The fragmentation threshold is adjusted based on throughput performance, delay constraints and hidden node influence.
Patent CA-2416621-A1 (CA)
Title: Method and system for multi-mode coverage for an autonomous robot
Inventor: JONES JOSEPH
IPC: G05D1/02
Filed: 2002-06-12
Abstract: A control system for a mobile robot (10) is provided to effectively cover a given area by operating in a plurality of modes, including an obstacle following mode (51) and a random bounce mode (49). In other embodiments, spot coverage, such as spiraling (45), or other modes are also used to increase effectiveness. In addition, a behavior based architecture is used to implement the control system, and various escape behaviors are used to ensure full coverage.
Patent CA-2418461-A1 (CA)
Title: Procede et compositions concus pour favoriser l'osteogenese
Inventor: BOILEAU GUY
IPC: A61K48/00
Filed: 2001-08-23
Abstract: L'invention concerne l'augmentation de l'activité du PHEX afin d'améliorer le processus ostéogénique chez un mammifère lorsque ledit processus diminue par suite de maladie ou de condition nécessitant l'ostéogenèse. L'ostéocalcine étant un inhibiteur de l'activité du PHEX, l'identification d'une substance susceptible de potentialiser cette activité par la prévention de l'action inhibitrice d'inhibiteurs endogènes améliorera donc l'ostéogenèse. Le PHEX étant d'ordinaire associé à la croissance des os ou des dents et l'absence de l'ostécalcine étant associée à une masse osseuse accrue, la potentialisation de l'activité du PHEX peut favoriser la croissance osseuse. On peut également obtenir une activité du PHEX accrue en administrant l'enzyme elle-même.
Patent CA-2420482-A1 (CA)
Title: Gene 13 (psgen 13) a progression supprimee et ses utilisations
Inventor: FISHER PAUL B
IPC: C12N5/079
Filed: 2001-08-27
Abstract: La présente invention concerne des acides nucléiques isolés codant des protéines du gène 13 (PS Gen 13) à progression supprimée, des vecteurs contenant ces acides nucléiques, des protéines de PSGen 13 isolées, ainsi que des méthodes d'utilisation de ces molécules pour empêcher la croissance de cellules cancéreuses et/ou de nouveaux vaisseaux sanguins et soigner en conséquence les patients cancéreux. Ces méthodes reposent, au moins en partie, sur la caractérisation des ADNc complets codant le PSGen 13 humain et murin, et sur la découverte selon laquelle les niveaux d'expression élevés de PSGen 13 peuvent supprimer le phénotype transformé et inhiber les activités des promoteurs associées à l'évolution du cancer et à l'angiogenèse. Divers modes de réalisation utilisent une méthode permettant d'inhiber la croissance des cellules cancéreuses. Cette méthode consiste à mettre en contact les cellules cancéreuses avec une dose suffisante d'acide nucléique codant une protéine PSGen 13, une protéine PSGen 13 ou un activateur de PSGen 13, pour inhiber la croissance des cellules cancéreuses. Par ailleurs, l'invention concerne une méthode de traitement du cancer chez un sujet, consistant à mettre en contact les cellules du sujet avec une dose suffisante d'un acide nucléique codant une protéine PSGen 13 pour amener la cellule à exprimer la protéine PSGen 13 et traiter ainsi le cancer chez le sujet.
Patent CA-2420602-A1 (CA)
Inventor: ZUNKER MARYANN
IPC: A61F2/00
Filed: 2001-09-18
Abstract: A urinary incontinence device for reducing the occurrence and/or severity of female urinary incontinence. The urinary incontinence includes a non-absorbent core structure and resilient member having a generally trapezoidal shaped profile. The resilient member is adapted to expand the urinary incontinence device within a vagina, while also providing a soft tip for facilitating the insertion of the device.
Patent CA-2422522-A1 (CA)
Title: Call center administration manager with rules-based routing prioritization
Inventor: EZERZER RAN
IPC: H04L29/06
Filed: 2001-08-14
Abstract: A multi-media call center provides an interface tool for enabling non-technical personnel of a company running the call center to provision and configure the call center from available resources. The calls received by the call center are identified and their attributes useful in queuing the calls are determined. Based on the attributes, priority ratings are computed for the calls by applying a predetermined function to the attributes, and the calls are queued in accordance with their respective priority ratings. The weights to be given to the various priority attributes and the initial values of the customer-specific priority attributes are set through the interface tool during the provisioning and configuring process. The attributes are linked to the call center's live database, and the values of the customer- specific priority attributes are dynamically updated, so that events relevant to call. prioritization that occur after the initial configuration has been completed can affect call queuing.
Patent CA-2423057-A1 (CA)
Title: Curable polyurethanes, coatings prepared therefrom, and method of making the same
Inventor: VERARDI CHRISTOPHER A
IPC: C08G18/12
Filed: 2001-09-21
Abstract: A polyurethane material, the coatings prepared therefrom, and methods of making the same are provided. An anionic self-crosslinkable polyurethane material has a weight average molecular weight of less than 15,000 grams per  mole and, when cured, has a toughness of at least 20 MPa according to TOUGHNESS TEST METHOD at a temperature of 25 ~C.
Patent CA-2425475-A1 (CA)
Title: Circuit arrangement for operation of incandescent lamps in motor vehicles
Inventor: HIRSCHMANN GUNTER
IPC: H05B39/04
Filed: 2003-04-15
Abstract: Circuit arrangement for operation of incandescent lamps in motor vehicles.      A circuit arrangement for operation of incandescent lamps in motor vehicles, having the following features: .cndot. input connections (J1, J2), which are coupled to a vehicle power supply system supply voltage (UB), with the vehicle power supply system supply voltage (UB) essentially being a DC voltage, .cndot. output connections (J3, J4), which are coupled to incandescent lamps (Lp), characterized in that the circuit arrangement contains an inverter which, at the output connections (J3, J4), provides an output voltage (UA) which is essentially an AC voltage.
Patent CA-2425687-A1 (CA)
Inventor: JOHNSON CORINNE
IPC: A01G7/00
Filed: 2001-10-05
Abstract: The present invention provides methods for altering the concentration or lev el of nitrate, soluble oxalic acid or oxalate, or nutritional quality indicator s in a plant, comprising growing the plant in a hydroponic nutrient medium whi ch contains a nitrogen source, and then alterning the content of the hydroponic  medium prior to harvest of the plant so that the medium does not contain a nitrogen source, so that the concentration of oxalic acid or oxalage in the plant is altered.
Patent CA-2430679-A1 (CA)
Title: Device for feeding reactor initiators
Inventor: GROOS GEORG
IPC: B01J19/26
Filed: 2001-11-27
Abstract: The invention relates to a method for producing polyethylene in tubular reactors with or without autoclaves, whereby a liquid medium current containing ethylene and comonomers is supplied to a radical chain initiator with or without cold ethylene. Torsion is produced between two currents (61, 62) to be mixed at an angle (66), or a torsion element (20, 80) is provided in the cross-section of the current (27, 28). A contraction of the cross-section (63, 67, 71) is formed in the region of a feeding point (72, 81) for a radical chain initiator, at which point the radical chain initiator is supplied in the current having torsion (61, 62, 70), through an eccentric, optimised outlet (44) of a feeding finger (40).
Patent CA-2431014-A1 (CA)
Inventor: HEEMSKERK JACOBUS PETRUS JOSEP
IPC: G11B7/007
Filed: 2002-10-10
Abstract: La présente invention a pour but de détecter, dans un disque optique, un signal d'oscillation au moyen d'une simple configuration. Dans le disque optique, les informations d'adresse, modulées sur un signal porteur sinusoïdal par addition des signaux harmoniques égaux audit signal porteur sinusoïdal et par modification de la polarité desdits signaux harmoniques, sont constituées en signal d'oscillation. La détection du signal d'oscillation provenant du disque optique afin de démoduler les informations d'adresse, dans un procédé servant à détecter le signal d'oscillation, un signal harmonique égal et des cycles d'horloge de données sont générés, et les signaux harmoniques égaux ainsi générés sont multipliés avec le signal d'oscillation reproduit. Le signal qui en résulte est intégré à chaque cycle d'horloge. Le signe des informations numériques est vérifié sur la base de la valeur intégrée au niveau d'une limite d'extrémité du cycle d'horloge.
Patent CA-2433850-A1 (CA)
Title: Method for sterilizing bioactive materials
Inventor: SHIMP LAWRENCE A
IPC: C12N5/08
Filed: 2002-01-04
Abstract: A method is provided for sterilizing a bioactive material which comprises contacting the bioactive material with hydrogen gas and while the bioactive material is in contact with hydrogen gas, irradiating the bioactive material with ionizing radiation to sterilize the material.