baber/WOPTO huggingface dataset:
Patent CA-2278420-C (CA)
Inventor: SCHMITZER HEIDRUN
IPC: G02F1/1347
Filed: 1999-07-23
Granted: 2009-10-13
Abstract: Quantum cryptography is a new method, which is secure against interception, for transmitting random keys by way of publicly accessible optical information channels, the low transmission speeds of which are to be increased. This has been achieved by using electro-optical liquid crystal modulators to change the polarization, these being in the form of electrically rotatable delay panels, the two double-refracting axes of which being rotated by the electrical field that is applied through an angle .theta., the size of which is a function of the strength of said field, as a result of which a .lambda./2 delay panel rotates elliptically polarized light that falls on the plate through the angle 2.theta., in the microsecond range. The area of application for the present invention is the transmission of data, secure against being intercepted, by way of publicly accessible transmission lines.
Patent CA-2285195-C (CA)
Title: A connector
Inventor: WILCOX DAVID MARK
IPC: H01R13/646
Filed: 1998-04-16
Granted: 2007-09-04
Abstract: A connector for making an electrical connection with a mating interface (17) includes a hollow conductor (1) within which is included a member (9) which is relatively movable with respect to the conductor (1).  Resilient means (12), which may be a spring, is located between the conductor (1) and member (9). In a first state of the connector, the conductor (1) and member (9) are in a relative position in which the resilient means (12) exerts a force between them urging them together.  Following a mechanical connection made between the member (9) and the mating interface (17), the connector is set in a second state in which the force applied by the resilient means (12) takes effect, moving the conductor (1) and member (9) towards one another to make an electrical connection between the conductor (1) and the mating interface (17). This allows a connection to be made with only minimal force and no torque, making it suitable for fragile connections. It is particularly useful for connections which must be made under vacuum.
Patent CA-2291041-C (CA)
Title: Procede de gravure sur diamant
Inventor: SMITH JAMES GORDON CHARTERS
IPC: B28D5/00
Filed: 1998-05-22
Granted: 2007-03-06
Abstract: On forme une gravure indicative, invisible à l'oeil nu, sur la facette polie d'un diamant, en revêtant la surface de ce diamant d'une couche électriquement conductrice, de manière à prévenir tout chargement dudit diamant, puis en gravant au moyen d'un faisceau électronique focalisé, et en nettoyant la surface du diamant au moyen d'un agent fortement oxydant, afin de révéler ladite gravure, de profondeur adéquate, qui ne nuit pas au degré de pureté ou à la couleur dudit diamant.
Patent CA-2293356-C (CA)
Title: Procede permettant de former un film de revetement inorganique hydrophile et composition de revetement inorganique
Inventor: IKENAGA JUNKO
IPC: C09D183/02
Filed: 1999-04-12
Granted: 2003-12-30
Abstract: Procédé permettant de former un film de revêtement inorganique hydrophile à la surface d'un substrat, qui comprend les étapes suivantes: 1) on produit une composition de revêtement inorganique, qui renferme comme principal composant une résine de silicone que l'on obtient en soumettant uniquement un alcoxysilane tétrafonctionnel, représenté par la formule Si(OR)4, (dans laquelle R est alkyle renfermant jusqu'à 7 atomes de carbone ou aryle), à une polycondensation hydrolytique, et qui a une teneur en matières solides totales inférieure ou égale à 5 % en poids; 2) on applique la composition de revêtement inorganique à la surface du substrat de façon à former une couche de revêtement; et 3) on sèche et on durcit la couche de revêtement de façon à former un film durci ayant une épaisseur comprise entre 0,01 et 0,5  mu m. La surface du film de revêtement inorganique hydrophile ainsi formée est extrêmement hydrophile, même juste après la formation du film et même si celui-ci est moins apte à être irradié par les ultraviolets.
Patent CA-2293578-C (CA)
Title: Materiau en feuille activable selectivement servant a distribuer et a disperser une substance sur une surface cible
Inventor: OTTEN GENEVA GAIL
IPC: A61K9/70
Filed: 1998-06-04
Granted: 2003-10-21
Abstract: Cette invention se rapporte à un matériau en feuille activable sélectivement servant à distribuer et à disperser une substance (16) sur une surface cible (20). Ce matériau en feuille comporte une feuille tridimensionnelle de matériau ayant une première face et une seconde face. La première face présente plusieurs saillies creuses (14) s'étendant vers l'extérieur à partir d'elle et séparées les unes des autres par des creux alors que la seconde face présente plusieurs dépressions correspondants aux saillies creuses. Une substance (16) adhère à une zone protégée de tout contact extérieur et remplit partiellement une telle zone, laquelle est constituée par les creux et/ou les dépressions. Ce matériau en feuille (10) peut être activé sélectivement par déformation des saillies creuses (14), ce qui libère la substance (16) en direction d'une surface cible (20), ladite substance ayant une viscosité effective, qui, après activation, lui permet d'être libérée de sa zone protégée et d'être distribuée sur la surface cible. Parmi les substances appropriées, on mentionne des agents de nettoyage, des agents médicinaux, des émollients, des lubrifiants, des colorants, des agents de conservation, des agents protecteurs, des condiments, des adhésifs, des parfums, des anti-transpirants, des déodorants et des combinaisons de ceux-ci. Cette invention se rapporte également à de tels matériaux ayant au moins deux substances de composition diverse et les substances qui subissent une baisse de la viscosité effective après activation, telles que les substances de rhéofluidification, sont particulièrement préférées. Des couches supplémentaires de matériau poreux peuvent également être utilisées sur le côté opposé de la substance par rapport au matériau en feuille, pour que la substance puisse être distribuée à travers le matériau poreux. Les matériaux poreux peuvent assurer une interaction bénéfique supplémentaire avec la substance, y compris une distribution et une dispersion améliorées.
Patent CA-2299354-C (CA)
Title: Automated array sorter for conveyors
Inventor: BONNET HENRI
IPC: B65G21/16
Filed: 1998-08-26
Granted: 2004-11-23
Abstract: The present invention reveals an automatic sorting device capable of receiving articles from an input source, correctly choosing which of many output destinations to direct the articles, and transferring those articles without slowing the existing automated system. To accomplish its purpose, the device comprises: a sorting conveyor pivoted at its receiving end about a horizontal and vertical axis; a vertically moveable carriage, mounted within a horizontally moveable frame, that cradles the sorting conveyor between its receiving and output ends; tracks which support and guide the frame as it transverses side to side in front of an array of output destinations; and a controller capable of positioning the frame and carriage so the sorting conveyor output end is mated to the array conveyor receiving end identified as the article's output destination.
Patent CA-2303554-C (CA)
Title: Separation of acid gas from natural gas
Inventor: SIGMUNDSTAD MARTIN
IPC: B01J19/26
Filed: 1998-09-14
Granted: 2008-07-29
Abstract: A method of removing carbon dioxide and other acid gas components from natural gas. The method comprises bringing the natural gas into contact with a liquid including a solvent or reagent for the carbon dioxide and other acid gases then subjecting the natural gas and liquid to turbulent mixing conditions thereby causing the carbon dioxide and other acid gases to be absorbed by the solvent or reagent. A  gas phase and a liquid phase are then separated.
Patent CA-2304696-C (CA)
Title: Procede et appareil permettant d'inactiver des contaminants biologiques a l'aide de photosensibilisants
Inventor: HLAVINKA DENNIS
IPC: A61L2/10
Filed: 1999-07-21
Granted: 2007-05-15
Abstract: La présente invention concerne des procédés et des appareils permettant d'inactiver des micro-organismes présents dans des fluides ou sur des surfaces. De préférence, les fluides contiennent du sang ou des produits sanguins et ils comprennent des protéines bioactives. Selon les procédés préférés, on ajoute une quantité efficace non toxique d'un photosensibilisant endogène à un fluide et on expose le fluide à un photorayonnement suffisant pour activer le photosensibilisant endogène qui, à son tour, inactivera les micro-organismes. Les procédés précités permettent de décontaminer d'autres fluides, y compris des jus, de l'eau et analogues, ainsi que la surface d'aliments, de carcasses d'animaux, de blessures, de surfaces de préparation d'aliments et de surfaces de récipients de nettoyage ou de récipients destinés au bain. Les alloxazines et les vitamines K et L figurent parmi les photosensibilisants préférés. L'invention concerne également des systèmes et des appareils de traitement continu ou discontinu permettant la décontamination de ce type de fluides à l'aide des photosensibilisants précités.
Patent CA-2308602-C (CA)
Title: System and method of routing emergency services calls in a radio telecommunications network
Inventor: HOUDE MICHEL
IPC: H04W4/90
Filed: 1998-10-20
Granted: 2009-08-25
Abstract: An emergency services call is routed from a mobile station to a selected Public Safety Answering Point (PSAP) in a cellular network. The system intelligently selects one of a plurality of PSAPs, warns the selected PSAP, prior to call routing, that the emergency services call is coming, and provides the selected PSAP with advanced information regarding the context of the call. A serving mobile switching center (MSC) sends cell or sector information to a service control point (SCP). The SCP includes a PSAP selector which selects the PSAP based on such information as the mobile station location and current time. The SCP then sends an alerting signal to the selected PSAP and includes a tag and information relating to the context of the call. The SCP then returns the tag and the identity of the selected PSAP to the serving MSC which delivers the call to the selected PSAP.
Patent CA-2309528-C (CA)
Inventor: MERCOLINO THOMAS J
IPC: G01N33/53
Filed: 2000-05-25
Granted: 2007-10-09
Abstract: Simultaneous forward and reverse blood group testing is described using both a visual detection system and a fluorescent based labeling and detection system. Forward and reverse tests could be performed separately, but A and B agglutinates can be detected and discriminated simultaneously.
Patent CA-2324901-C (CA)
Title: Compositions pharmaceutiques destinees a la liberation prolongee de peptides et leur procede de preparation
Inventor: PELLET MARC
IPC: A61K38/09
Filed: 1999-03-22
Granted: 2012-01-24
Abstract: L'invention concerne de nouvelles compositions pharmaceutiques solides ou semi-solides comportant un sel de peptide soluble et gélifiable, lequel présente une surface spécifique élevée. Ces compositions peuvent aussi comprendre un excipient et/ou de l'eau. Une fois injectées à un patient, les compositions de l'invention gélifient et libèrent le sel de peptide sur une durée prolongée au moins égale à 15 jours.
Patent CA-2325410-C (CA)
Title: Synthesis of higher polyol fatty acid polyesters by transesterification
Inventor: SCHAFERMEYER RICHARD GERARD
IPC: C07H13/06
Filed: 1999-03-17
Granted: 2004-10-12
Abstract: A process for synthesizing polyol fatty acid polyesters comprising the steps of (1) mixing ingredients comprising (a) unesterified first polyol having hydroxyl groups, (b) second polyol esterified with fatty acids, (c) basic catalyst, and (d) emulsifying agent to form a mixture of ingredients; (2) reacting the mixture of ingredients at a temperature sufficient to obtain a transesterification reaction products and by-products; and (3) removing at least a portion of the by-products from the transesterification reaction mixture; and (4) further heating the transesterification reaction products and ingredients from step (3) at a temperature and for a time sufficient to esterify at least about 50 % of the hydroxyl groups of the first polyol.
Patent CA-2325895-C (CA)
Title: Procede de paiement securise
Inventor: SARRADIN JEAN-LOUIS
IPC: H04L29/06
Filed: 2000-11-16
Granted: 2003-10-14
Abstract: Pour réaliser un procédé de paiement universel par carte à puce (16), on propose de munir un téléphone mobile (14) d'un lecteur de carte à puce.   Un circuit de contrôle de sécurité (15) du téléphone mobile est alors muni d'une fonction complémentaire permettant à ce téléphone mobile de se comporter comme un lecteur de carte à puce sécurisé en vu de ce paiement.  On montre qu'en agissant ainsi on facilite les paiements par carte à puce, en dissociant un acte de paiement d'un acte d'achat qui peut s'effectuer par tout moyen, notamment via Internet.
Patent CA-2326071-C (CA)
Title: Device for treating growing, dilated or malformed blood vessels and method for treating biological material
Inventor: ABELS CHRISTOPH
IPC: A61B90/00
Filed: 2000-11-16
Granted: 2004-01-06
Abstract: In a device for treating blood vessels with a laser, the laser provides a beam in a wavelength range from 750 to 850 nm, preferably 805 nm. The device has a measuring unit which measures the concentration of a chromophore (preferably indocyanine green) administered to the patient in the patient's blood vessels. The device further comprises a control unit which controls the power of the laser in a contrary sense to the measured concentration.
Patent CA-2330444-C (CA)
Inventor: HAYASHI MASAKI
IPC: H04W52/24
Filed: 2000-03-06
Granted: 2005-01-04
Abstract: The value of transmission power is calculated according to a TPC command by a CL-TPC section (162) after line set-up, and closed-loop transmission power control is performed.      Simultaneously the value of transmission power is calculated based on the reception level by an OL-TPC section (161). A correction value is calculated from the difference between the values of transmission power outputted from the CL-TPC and OL-TPC sections (162, 161) by a correction value calculating section (164). After the correction value is determined, switches (167, 169) are operated by a mode changing section (165), and open-loop transmission power control is performed by using the sum of the value of transmission power based on the reception level and the correction value. Thus the reception level measurement error can be corrected without high reception measurement accuracy, and rapid phasing and strong interference wave, if occurring, can be dealt with.
Patent CA-2339046-C (CA)
Inventor: PAQUET CARL
IPC: G02F1/355
Filed: 2001-03-01
Granted: 2007-08-14
Abstract: The present invention concerns a method for fabricating a patterned, poled dielectric structure, comprising the steps of providing a material, patterning a periodic pattern into a first surface, applying an electrode to the first surface, and applying a voltage to the electrode to create a domain inversion in the material. Preferably, the material is a ferroelectric material, and the electrode is a single, planar, solid electrode. The method proposed herein is simple, reproducible and economical, as compared to prior methods. Patterned, poled dielectric structures are used to generate optical frequency conversion, by creating quasi-phase matching between two optical signals.
Patent CA-2339166-C (CA)
Inventor: CHU CHIH-CHANG
IPC: C08J3/24
Filed: 1999-08-25
Granted: 2008-01-15
Abstract: Des hydrogels biodégradables sont formés par photoréticulation de monoesters de dextrane-acide maléique, dans lesquels le degré moyen de substitution de chaque unité de glucose de chaque  alpha -D-glucopyrannosyle de dextrane par l'acide maléique se situe entre 0,60 et 1,6, et la masse moléculaire moyenne en poids varie entre 40,000 et 80,000, sur la base du dextrane. A un pH de 7, ces hydrogels présentent un taux de gonflement maximal situé entre 500 et 1500 pour cent. Ces hydrogels sont en outre caractérisés par une hausse de ce taux de gonflement qui est proportionnelle à l'augmentation du degré moyen de substitution. Ces hydrogels sont par exemple utilisés pour l'administration de médicaments, comme agents favorisant la solubilité de médicaments, comme matériau d'encapsulation protecteurs de virus utilisés en thérapie génique, ou employés comme hydrogels traditionnels.
Patent CA-2343299-C (CA)
Title: Method for preventing or delaying catheter-based revascularization
Inventor: BLACK DONALD MICHAEL
IPC: A61K31/225
Filed: 1999-07-08
Granted: 2008-04-01
Abstract: Aggressively lowering cholesterol in patients suffering from coronary artery disease prevents or delays the need for catheter-based revascularization.
Patent CA-2345578-C (CA)
Title: Tool path measurement
Inventor: WANG CHARLES
IPC: G01B11/03
Filed: 1999-12-13
Granted: 2008-02-05
Abstract: The degree of accuracy a machine tool or the like is moved along a given path is determined by a unique preferably laser beam directing measuring system directing simultaneously or in sequence a laser beam parallel to the orthogonal axes of the two or three dimensional space in which the spindle or other object is to be moved in a path which can diverge appreciably in directions other than the directions of these axes. The beam directing means includes means which provides a measure of the actual positions the object has at various sampling times relative to the axis along which the beam is directed. This actual path position data is compared to the desired path position data used to program the object moving machine to determine the path position error at the sampling times involved.
Patent CA-2348189-C (CA)
Title: A fine solids separator
Inventor: FORMBY BRIAN PHILIP
IPC: B07B1/20
Filed: 2001-05-18
Granted: 2007-11-06
Abstract: A fine solids separator 10 including a hollow housing 12 having a generally cylindrical wall 11. Located within the housing 12 is a cylindrical screen member 15 that is preferably formed of expanded metal mesh. The screen member 15 encloses a chamber 22 to which a flocculated sewage is delivered by means of an inlet duct 23. Located within the chamber 22 is an impeller 26 which at least aids circulation of liquid within the chamber 22 about the longitudinal axis of the chamber 22. Liquid leaves the chamber 22 via the screen member 15 and an outlet 25 extending from an outlet chamber 24 located between the member 15 and housing 12.
Patent CA-2348993-C (CA)
Title: Substituted phenethylsulfones and method of reducing tnf.alpha. levels
Inventor: MAN HON-WAH
IPC: C07D209/68
Filed: 1999-10-19
Granted: 2009-12-29
Abstract: Phenethylsulfones substituted .alpha. to the phenyl group with a 1- oxoisoindoline or 1,3-dioxoisoindoline reduce the levels of TNF.alpha. in a mammal. A typical embodiment is 2-[1-(3-ethoxy-4-methoxyphenyl)-2- methylsulfonylethyl)-4-aminoisoindoline-1,3-dione.
Patent CA-2350746-C (CA)
Title: Method for the purification and recovery of waste gelatin
Inventor: SCHMIDT WILLIAM J
IPC: B01D1/22
Filed: 1999-11-15
Granted: 2006-10-03
Abstract: Method and apparatus for treating a waste material containing gelatin in which the waste material stream (5) is combined with a solvent stream (2) which is capable of dissolving the gelatin and any softening agent contained therein and then treating the resulting product to obtain a recoverable and usable gelatin containing stream exiting receiver (34) and any components contained in the original waste stream.
Patent CA-2357189-C (CA)
Title: Dual fpd and thin client
Inventor: SALLAM HUSSEIN
IPC: G06F1/16
Filed: 2001-09-11
Granted: 2003-08-05
Abstract: The invention is essentially a flat panel display, preferably for use with wearable computers, which utilizes a display which is separate from the CPU, which can perform as a static flat panel display when connected to or in communication with the computer, but can also function as a thin client PDA when independent from the computer to which it was originally connected. The device will look and function as a flat panel display and include integral activation means either through stylus, touch panel, integrated pointing device, voice, or other activation means. This activation means will be available whether the device is functioning as a display or as a thin client PDA. The device will be small enough to be worn, carried or otherwise supported by the user, but can be utilized independently as a PDA to perform data input, calendars and scheduling, memo inputting and other thin client functions, and will run a thin client operating system such as Windows ~ CE or Palm ~ OS. The enclosure itself will contain hardware sufficient to support display functions as well as a thin client motherboard. It will also contain either a wired or wireless communication bus for communicating data to the computer from which it was disconnected. Additionally, it will possess a standard or proprietary video input plug for displaying output from the underlying computer.
Patent CA-2361803-C (CA)
Inventor: RUDOLF HANS-WERNER
IPC: H04M3/00
Filed: 1999-01-14
Granted: 2007-03-06
Abstract: In the context of transmission via analog subscriber lines (TLa, TLb), unlike in the case of conventional modem connections, the data are subjected to different handling than the likewise transmitted analog voice signals, to be specific are subjected to an A/D conversion at a higher sampling rate and to a coding operation according to a linear characteristic.
Patent CA-2363436-C (CA)
Inventor: ALLEY MILTON
IPC: F21V37/02
Filed: 2001-11-21
Granted: 2008-01-15
Abstract: A candle shade includes a sleeve adapted to receive a top end of a candle and a shade element coupled to the sleeve and surrounding the candle adjacent the top end. The sleeve has at least one spacing element on its interior surface to space the sleeve from the candle and reduce contact area therebetween. A stop is also provided on the sleeve to inhibit the sleeve from travelling down the candle beyond the top end.
Patent CA-2368925-C (CA)
Title: Fuel cell system
Inventor: KUSANO YOSHIO
IPC: H01M8/10
Filed: 2002-01-22
Granted: 2008-02-19
Abstract: The present invention provides the fuel cell system, in which the decrease in the power generation and the degradation of the durability of the fuel cell can be prevented even if the temperature of fuel cell is low at starting or the ambient temperature is low. On the fuel cell starting electric power generation, the air supplied to the cathode inlet is humidified by the hollow fiber membrane humidifier and the hydrogen gas supplied to the anode inlet is humidified by another hollow fiber membrane humidifier. The cooling fluid of the cooling line, which absorbs the heat from the fuel cell and flows into the heat exchanger, heats the hollow fiber membrane humidifiers. Thus the humidification is promoted by heating the humidified air and hydrogen gas to raise their dew-point temperatures.