baber/WOPTO huggingface dataset:
Patent CA-2562574-A1 (CA)
Inventor: GOODE MARK G
IPC: C08F210/16
Filed: 2005-03-08
Abstract: The present method is directed to techniques for estimating and periodically controlling the reactor split of alpha-olefin polymerizations using multiple catalysts that selectively incorporate monomers and other reactants into polymer compositions. The method provides for the rapid determination of instantaneous reactor split and cumulative split in polymerization reactors by the use of a novel linear relationship between Incorporation and Reactor Split.
Patent CA-2571978-A1 (CA)
Title: A filter
Inventor: OLSEN OLE
IPC: B01D29/15
Filed: 2004-07-02
Abstract: The present invention relates to a filter for liquid filtration, the construction of the filter ensure increased filtration capacity by using up the filtration medium rather that clogging up. The filter comprises layers of filtration medium (2) and optionally also layers of spacer medium (1). Liquid to be filtered can through bypass spaces circumvent a number of layers of filtration and/or spacer medium and is by at least one sealing (3) directed through the filtering area of the filtration medium. End caps (5) with perforations (6) allow the liquid to be distributed within the bypass space between the edges of the layers of filtration medium and spacer medium. Rolled filters with a central core (4) to drain off the filtered liquid can be constructed in large dimensions. Also disclosed is a method of making the filter. The filters are suitable for many purposes, especially for filtering liquid with oil.
Patent CA-2574882-A1 (CA)
Inventor: OTTERSEN HANS-OLAV
IPC: F03B13/14
Filed: 2005-06-23
Abstract: The special feature of this multiphase and multidimensional wave converter is that it exploits, in an efficient and enduring manner, substantially all of the energy in all waves of the sea, also side waves, and hence is capable of producing large amounts of cheap power. The wave converter comprises at least two buoyant elements (1) connected in a chain of rods (2A, 2B) and joints (3, 4). Each single buoyant element is in a different phase of the wave than that of the others. They will therefore absorb the energy from the relative motion and forces between each set of buoyant elements (1). Each of the elements (1) is capable of moving and pivoting in three dimensions whilst the energy from all these motions is exploited. The energy-producing devices may be comprised of fluid-driving pumps (7, 8, 9) responding to the pivoting of the joints (3, 4) and the motion of the rods (2A, 2B). The wave converter absorbs energy from a varying wave spectrum and from all directions. The forces affecting the wave converter are balanced by the various buoyant elements (1), thus avoiding transmitting these forces via mooring. The wave converter provides appreciable economic advantages and durability. It may also operate at any place in the sea and the ocean, at shallow depths as well as at the large depths of the ocean.
Patent CA-2577388-A1 (CA)
Inventor: SOMMER JOHN L
IPC: A61N1/05
Filed: 2005-08-22
Abstract: A lumen seal of a medical electrical lead includes an outer surface adapted to form a portion of an exterior surface of the medical electrical lead and an inner surface adapted to seal off a lumen of the lead and yet allow passage of an elongate member that is slidably engaged within the lumen of the lead. The seal further includes a portion in which an agent is embedded, the agent adapted to disperse from the portion out through the outer surface of the seal.
Patent CA-2577852-A1 (CA)
Inventor: SMITHEY DANIEL TOD
IPC: A61K9/16
Filed: 2005-08-18
Abstract: A dosage form comprises a low-solubility drug, and a precipitation-inhibiting polymer. The drug is in a solubility-improved form and in the form of particles at least partially coated with the precipitation-inhibiting polymer.  Exemplified low-solubility drugs are ziprasidone and sildenafil. Exemplified precipitation-inhibiting polymer is HPMCAS.
Patent CA-2580640-A1 (CA)
Inventor: ZHAO BOYU
IPC: A61K31/27
Filed: 2005-09-15
Abstract: This invention is directed to methods for preventing, treating, reversing, inhibiting or arresting epilepsy and epileptogenesis in a subject comprising administering to the subject in need thereof a therapeutically effective amount of a compound selected from the group consisting of Formula (I) and Formula (II), or a pharmaceutically acceptable salt or ester thereof: wherein phenyl is substituted at X with one to five halogen atoms selected from the group consisting of fluorine, chlorine, bromine and iodine; and, R1, R2, R3, R4, R5 and R6 are independently selected from the group consisting of hydrogen and C1-C4 alkyl; wherein C1-C4 alkyl is optionally substituted with phenyl (wherein phenyl is optionally substituted with substituents independently selected from the group consisting of halogen, C1-C4 alkyl, C1-C4 alkoxy, amino, nitro and cyano).
Patent CA-2583630-A1 (CA)
Title: Mri biopsy device
Inventor: DIETZ TIMOTHY G
IPC: A61B10/02
Filed: 2007-03-30
Abstract: A compression assembly for retaining a patient's breast during a biopsy procedure that provides a wide variety of potential access points through which tissue may be accessed by a biopsy device.
Patent CA-2583708-A1 (CA)
Title: Stable driving scheme for active matrix displays
Inventor: CHAJI G REZA
IPC: G09G3/3225
Filed: 2007-04-18
Abstract: A method and system for operating a pixel array having at least one pixel circuit is provided.  The method includes repeating an operation cycle defining a frame period for a pixel circuit, including at each frame period, programming the pixel circuit, driving the pixel circuit, and relaxing a stress effect on the pixel circuit, prior to a next frame period.  The system includes a pixel array including a plurality of pixel circuits and a plurality of lines for operation of the plurality of pixel circuits. Each of the pixel circuits includes a light emitting device, a storage capacitor, and a drive circuit connected to the light emitting device and the storage capacitor.  The system includes a drive for operating the plurality of lines to repeat an operation cycle having a frame period so that each of the operation cycle comprises a programming cycle, a driving cycle and a relaxing cycle for relaxing a stress on a pixel circuit, prior to a next frame period.
Patent CA-2585005-A1 (CA)
Title: Membrane filter for microbe detection
Inventor: YASUHARA TAKAOMI
IPC: C12M1/26
Filed: 2005-11-02
Abstract: A membrane filter for microbe detection that realizes low fluorescent background, being applicable to staining combining fluorescent dyes of variable wavelengths, and that attains enhanced operationality. There is provided a membrane filter for microbe detection, comprising a polymer layer of 10 to 500 µm thickness and, superimposed thereon, a metal layer of 0.1 nm to 1 µm thickness. Further, there is provided a method of microbe detection wherein microbe detection is carried out with the use of the membrane filter for microbe detection according to any one of claims 1 to 5.
Patent CA-2585249-A1 (CA)
Inventor: SLAUGHTER ROBERT H JR
IPC: E21B10/08
Filed: 1998-12-01
Abstract: A drill bit for use in a borehole at least partially containing drilling fluid includes a bit body having at least two bit components, including at least one leg, the leg having a journal segment, and a roller cone rotatably mounted upon the journal segment and forming at least one bearing cavity therebetween. Also included is an annular primary seal disposed between the leg and the roller cone, an annular secondary seal disposed between the leg and the roller cone and between the annular primary seal and the borehole and an annular space disposed between the annular primary seal and the annular secondary seal, the annular space at least partially containing fluid and being in substantially absolute fluid isolation from the bearing cavity and means for permitting the flow of fluid from the annular space to the borehole. The annular secondary seal may be primarily elastomeric and the means for permitting the flow of fluid may further permit the flow of fluid from the borehole to the annular space. The annular space may at least partially include a grease possessing a water washout value of under approximately 50% per ASTM D-4049 water spray test for lubrication characteristics and the grease may include a polymer tackifier of between approximately 1% and approximately 5% by weight.
Patent CA-2585709-A1 (CA)
Inventor: MEYER PETER
IPC: A61B5/344
Filed: 2007-04-23
Abstract: A sensor array apparatus for monitoring medical signals includes a flexible substrate adapted to generally conform to a topography of a skin surface. The flexible substrate includes a central portion arranged about a central focal point and a plurality of finger-like projections extending radially outwardly from the central portion.  A medical electrode is disposed on at least one of the finger-like projections, preferably, each of the finger-like projections. Connector, in electrical communication with the medical electrode, is adapted to connect to an electronic system.
Patent CA-2588312-A1 (CA)
Inventor: KAZMAIER PETER M
IPC: G02F1/167
Filed: 2007-05-11
Abstract: An electrophoretic display medium includes one or more set of colored particles in a dielectric fluid, and wherein at least one of the one or more set of particles are particles having thereon at least one polyelectrolyte coating.  The display medium is included in an electrophoretic display device by including the medium in a multiplicity of individual reservoirs of a display layer or layers that is located between conductive substrates.
Patent CA-2588435-A1 (CA)
Title: Compressing device for plastic bottles optimized for recycling machines
Inventor: LAFOND ALAIN
IPC: A47G35/00
Filed: 2007-05-02
Abstract: A compressing device for plastic bottles optimized for recycling machines providing carefully shaped first and second plates with one being generally convex whi le the other being concave so as to mate more completely and provide a flattened bottle, ready for recycling. Also, a tail serves to align the bottom of the bottle s o that the bar code remains visible when the bottle is run through an automated recycling machine. There are two embodiments one has as component a stand and a tongue while another embodiment is without a stand and has a hingedly movable tail. Also, the tongue and the tail are configured and shaped so as to accept a variety of bottle bottom configurations and are also used for precisely aligning the bottom of the bottle for improving the way the bottle is compressed.
Patent CA-2589194-A1 (CA)
Inventor: MARKOTIC LORRAINE JEANETTE
IPC: H01H13/70
Filed: 2007-05-17
Abstract: A substantially standard layout keyboard for text input, having a plurality of standard keys, in a substantially standard layout (e.g. QWERTY, DVORAK, etc.), the keyboard having a plurality of word fragments associated with a selected subset of the plurality of standard keys, and a word input key adapted to input one of the plurality of word fragments, wherein one of the plurality of word fragments is input by activating the word input key in conjunction with one of the plurality of standard keys.  Preferably, the word input key is set in a space adjacent the space bar.
Patent CA-2590216-A1 (CA)
Title: Optical gas detection
Inventor: WATTS RODNEY ROYSTON
IPC: G01N21/3504
Filed: 2005-12-16
Abstract: The present invention provides a transmitter unit (10) for an open path gas detector for detecting a target gas and comprises: a radiation transmitter (12), e.g. a tuneable laser diode, capable of emitting radiation at a wavelength absorbed by the target gas, and a radiation deflector, having a deflecting part and a non-deflecting part (15), e.g. a mirror having a non-reflective part. The deflecting part and the non-deflecting part are located in the path of the radiation emitted by the transmitter and the non-deflecting part does not deflect the said radiation emitted by the transmitter or does so to a different extent than the deflecting part. In this way, the beam has a core in shadow that can be used to align the beam with a receiver unit. The radiation deflector is preferably a mirror (14) having a reflective surface for reflecting radiation emitted by the transmitter and a non-reflective part (15) that does not reflect the said radiation emitted by the transmitter or does so to a lesser extent than the reflecting surface. The non-reflective part is preferably transparent so that it allows radiation to pass through it, which can be used to measure the wavelength of the transmitter and, if necessary correct it.
Patent CA-2590775-A1 (CA)
Inventor: LEEDS NICOLA LOUISE
IPC: G01N33/68
Filed: 2005-12-07
Abstract: The invention relates to a method of diagnosis of vCJD in a diagnostic sample of a valid body tissue taken from a human subject, which comprises detecting an increased concentration of a protein in the diagnostic sample, compared with a sample of a control human subject, the protein being: beta-actin (SwissProt Ace. No. P60709), apolipoprotein A-IV precursor (SwissProt Acc. No.  P06727); haptoglobin beta-chain consisting of residues 162-406 (SwissProt Acc.  No. P00738); haemoglobin beta chain (SwissProt Ace. No. P02023); or alpha-1-antitrypsin (SwissProt Ace. No. P01009); or a decreased concentration of a protein in the diagnostic sample, compared with a sample of a control, normal human subject, the protein being plasma protease (C1) inhibitor precursor (SwissProt Acc. No. P05155); complement component 1, s sub-component (SwissProt Acc. No. P09871); butyrylcholinesterase precursor (SwissProt Acc.  No. P06276); complement component C4B (SwissProt Acc. No. P01028); lumican (SwissProt Ace. No. P51884); alpha-fibrinogen precursor (SwissProt Ace. No.  P02671); IGHG4 protein (Swiss Prot Ace. No. Q8TC63) or immunoglobulin lambda heavy chain. Other marker proteins are also disclosed.
Patent CA-2591069-A1 (CA)
Title: Benzisothiazole-1, 1-dioxide acting as antagonists to the vanilloid receptor subtype 1 (vr1) and uses thereof
Inventor: LEE CHIH-HUNG
IPC: A61K31/425
Filed: 2005-12-07
Abstract: Compounds having formula (I) or a pharmaceutically acceptable salt, prodrug, or salt of a prodrug thereof, wherein L, A, G, R1, R2 and R3 are as defined herein. These compounds are particularly useful in the treatment of pain, inflammatory hyperalgesia, and urinary dysfunctions, such as bladder overactivity and urinary incontinence.
Patent CA-2593189-A1 (CA)
Inventor: HERKELMAN SCOTT ALAN
IPC: G06F3/039
Filed: 2006-01-06
Abstract: The present invention provides a game control system including a keypad with programmable keys, a mouse with programmable keys, a laptop tray system, and at least one insertable, removable, and transferable memory profile card. The macro- programmable keypad and mouse features can record, save and use complex multiple key actions with the use of one key. The at least one memory profile card can record and save complex sequences of actions within a game for each individual game user.
Patent CA-2594278-A1 (CA)
Inventor: HARBORT GREGORY JOHN
IPC: B03D1/14
Filed: 2005-11-25
Abstract: A fluid jet flotation apparatus (1) is disclosed. The apparatus (1) comprises a tank (10) containing a liquid having a relatively lower region and a relatively upper region and a conduit (2) having a liquid inlet (5) through which a particle-containing liquid is introduced to the conduit (2) as a jet.  The conduit (2) also includes a gas inlet (6) through which gas is drawn into the conduit (2) by the jet, the liquid and the gas forming a foam bed that is displaced through the conduit (2) and out through an outlet (24) remote from the inlet (5). The outlet (24) is positioned to discharge the foam bed from the conduit (2) into the tank (10) in an upward direction and in a relatively upper region of the tank. This enhances the separation of value particles in the froth from waste particles in the body of liquid. Further, the reduced pressure at the outlet (24) of the conduit (2) enhances the draw and thereby the volumetric throughput through the conduit (2). In the drawing the conduit comprises a downcomer and then a riser extending up from the downcomer. The apparatus also includes a froth recovery means for recovering particle laden froth from a froth layer that forms above the liquid in the tank (10). The tank (10) has a peripheral wall (11) with an upper edge defining a top that opens to the atmosphere and the froth recovery means comprises an overflow weir (15) formed by said upper edge of the tank (10) over which the froth layer can be discharged from the tank (10).
Patent CA-2594630-A1 (CA)
Inventor: DOROGI ANDREW
IPC: G05D16/10
Filed: 2006-01-11
Abstract: A regulator assembly for use with a supply of pressurized gas. A plurality of Belleville springs are disposed in a stack with at least one of the Belleville springs disposed in series configuration with at least one other Belleville spring and biased against a piston. The position of the piston is controlled by the pressure downstream of a poppet assembly and the load presented by the Belleville spring stack. The Belleville springs are initially compressed to a point at or near their zero spring rate .
Patent CA-2595486-A1 (CA)
Title: Use of sirtuin-activating compounds for treating flushing and drug induced weight gain
Inventor: LANGER ROBERT S
IPC: A61K31/05
Filed: 2006-01-20
Abstract: Provided herein are compositions and their use for treating and/or preventing flushing and/or weight gain by modulating the activity or level of a sirtuin, such as SIRTl or Sir2. Exemplary embodiments include compositions containing a sirtuin -activating compound and the use thereof for counteracting drug-induced weight gain and/or drug- induced flushing.
Patent CA-2603929-A1 (CA)
Title: A security strip and security paper incorporating said strip
Inventor: BARAJA CARRACEDO JAVIER
IPC: B41M3/14
Filed: 2005-04-06
Abstract: A security strip (1) consisting of sectors in which the background is non-continuous so that it is more difficult to duplicate by optical means than a continuous background, thereby making the strip harder to counterfeit. The non-continuous background consists of a dot pattern (2) printed using conventional printing techniques on an area (3) in which the repeated absence of dots defines a symbol (4), wherein the dots (2) of the pattern are geometrically and dimensionally distributed in such a way that they cannot be seen by the naked eye because the gap (3) between the dots cannot be discerned and the background appears to be continuous.
Patent CA-2605207-A1 (CA)
Inventor: MILLER CHRISTOPHER C
IPC: A61M15/08
Filed: 2006-04-14
Abstract: La présente invention se rapporte à une méthode destinée à traiter de manière topique les voies respiratoires d'un mammifère, par une exposition à du monoxyde d'azote. La méthode selon l'invention consiste à fournir une source d'un gaz contenant du monoxyde d'azote, et à administrer ledit gaz contenant du monoxyde d'azote par voie nasale aux voies respiratoires supérieures du mammifère. L'invention a également trait à plusieurs modèles de dispositifs d'administration nasale permettant l'administration nasale contrôlée du gaz contenant du monoxyde d'azote.
Patent CA-2606664-A1 (CA)
Title: Detection of ortho-diamine residues in analytes containing residual cyclizing agents
Inventor: MCMAHON MEGAN
IPC: G01N33/15
Filed: 2006-04-21
Abstract: The present invention relates to a novel method for the analytical determination of an aromatic ortho diamine contaminant in a pharmaceutical compound or intermediate thereof prepared by treating said aromatic ortho diamine with a cyclizing agent. The method comprises the steps of: (i) treating the pharmaceutical compound or intermediate thereof containing the contaminant with acetone to form a 2,2,4-trimethyl-1 ,5-benzodiazepine derivative of the aromatic ortho diamine contaminant, (ii) determining the quantity of the 2,2,4-trimethyl-1 ,5-benzodiazepine derivative in the pharmaceutical compound or intermediate thereof, preferably by HPLC and (iii) correlating the quantity of the 2,2,4- trimethyl-1,5-benzodiazepine derivative with the quantity of aromatic ortho diamine contaminant originally present in the pharmaceutical compound or intermediate thereof. Formation of the 2,2,4-trimethyl-1 ,5-benzodiazepine derivative occurs rapidly under mild conditions thereby eliminating interference by residual cyclizing agent and enabling detection of aromatic ortho diamines at ppm levels.
Patent CA-2611571-A1 (CA)
Inventor: PORTER MICHAEL R
IPC: B23K9/173
Filed: 2006-07-18
Abstract: A welding head employs a carriage assembly for guiding the welding head along a track or guide. A torch assembly, mounted on the carriage assembly, is configurable for multiple welding processes. The torch assembly includes a torch block and a GTA filler wire guide mounted together on a mounting plate, whereby the GTA filler wire guide is placed in general proximity of a welding torch mounted on the torch block. The torch block accommodates the mounting of either of a GMA torch and a GTA torch. Additionally, the torch block accommodates placement of a GMA adapter sleeve within the torch block to feed a filler wire through the GMA torch. A system control unit provides manual, semi-automated, or automated control of welding system resources including a welding power supply, a supply of one or more shielding gasses, and a fluid coolant supply.
Patent CA-2612520-A1 (CA)
Inventor: LESIEUR YVES
IPC: G01N11/04
Filed: 2007-11-27
Abstract: A method for determining the viscosity and relative change of viscosity of a fluid over plural shear rates caused by a decreasing or increasing pressure differential resulting from fluid flow to a defined chamber in a capillary system. The flow of liquid through the capillary restriction, the pressure variation rate and known dimensions of the system can be used typically by a processor to determine a rheological property of a fluid.
Patent CA-2612722-A1 (CA)
Inventor: DAWKINS BOBBY G
IPC: C08G69/00
Filed: 2006-06-13
Abstract: L'invention concerne un procédé de production de polybenzimidazole de masse moléculaire élevée en deux étapes. La première étape consiste à utiliser une première cuve de réaction et à la charger avec au moins une tétraamine d'hydrocarbure aromatique et un cycle hétérocyclique constituant la composante dicarboxylique. Les réactifs sont chauffés sous agitation. L'agitation est arrêtée tout en continuant de chauffer le mélange de réaction à environ 230 °C tout en permettant à la masse de réaction de se transformer en mousse. La masse de réaction est refroidie jusqu'à obtention d'une masse moussée friable. La masse moussée friable est broyée afin d'obtenir un prépolymère broyé. L'étape 2 consiste à utiliser une seconde cuve de réaction dans laquelle est transféré le prépolymère broyé. Un lavage sous pression est appliqué à la première cuve de réaction et au moyen d'agitation pour obtenir un second prépolymère broyé. Le second prépolymère broyé est transféré dans la seconde cuve de réaction. Le prépolymère broyé et le second prépolymère broyé sont chauffés sous agitation jusqu'à une température supérieure à celle de la première étape jusqu'à ce que le degré voulu de polymérisation soit obtenu.
Patent CA-2614696-A1 (CA)
Inventor: BALAVOINE FABRICE
IPC: A61P35/00
Filed: 2006-07-12
Abstract: Utilisation de la 4-(3,4-dichloro-phényl)-l,2,3,4-tétrahydro-naphtalèn-1- ylamine ou de toute combinaison de ses énantiomères ou d'un de ses énantiomères pour la préparation d'une composition pharmaceutique destinée au traitement du cancer, ainsi qu'au traitement et à la prévention des métastases.