baber/WOPTO huggingface dataset:
Patent CA-2262421-C (CA)
Title: Substituted pyrrolopyrimidines and processes for their preparation
Inventor: TRAXLER PETER
IPC: A61K31/535
Filed: 1997-08-21
Granted: 2007-10-02
Abstract: There are described 7H-pyrrolo[2,3-d] pyrimidine derivatives of formula (I) in which the substituents are as defined in claim 1. These compounds inhibit the tyrosine kinase activity of the receptor for the epidermal growth factor (EGF) and c-erbB2kinase and can be used as anti-tumour agents.
Patent CA-2263292-C (CA)
Title: Cement dispersants and method of producing concrete by using same
Inventor: KINOSHITA MITSUO
IPC: C04B24/26
Filed: 1999-03-02
Granted: 2008-01-15
Abstract: A cement dispersant composed of water-soluble vinyl copolymers which include specified kinds of constituent units at specified ratios and of which the weight average molecular weight pullulan converted by GPC method is 15000- 150000 and the ratio of weight average molecular weight to number average molecular weight is 2-7 is used together with cement, aggregates and water to produce concrete with the water-to-cement ratio of 20-45%.
Patent CA-2265359-C (CA)
Inventor: SPECHT GLENN E
IPC: A47L5/30
Filed: 1999-03-16
Granted: 2004-05-11
Abstract: A self-propelled vacuum cleaner is provided having an upper handle portion and a carriage pivotally mounted to a lower end of the handle portion for pivotal motion relative the handle portion about a horizontally extending carriage axis. A transmission drivingly connected to at least one drive wheel mounted on the carriage, whereby the at least one drive wheel propels the vacuum cleaner over a floor surface. A nozzle body pivotally mounted to the carriage for pivotal motion relative the carriage about a generally horizontally extending nozzle axis, the nozzle body having a downward facing suction opening. The nozzle axis being generally horizontally offset from the carriage axis.
Patent CA-2269807-C (CA)
Inventor: ACKLIN PIERRE
IPC: A61P9/00
Filed: 1997-10-22
Granted: 2007-04-10
Abstract: Compounds have the formula (I), in which R1 stands for hydroxy or an aliphatic, araliphatic or aromatic radical; X stands for a bivalent aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic, heteroarylaliphatic or aromatic radical; R2 stands for hydrogen or an aliphatic or araliphatic radical; elk stands for lower alkylidene; and R3, R4 and R5 independently represent hydrogen, lower alkyl, halogen, trifluoromethyl, cyano or nitro. These compounds and their salts may be used for treating pathological conditions which respond to the blocking of exciter amino acid receptors, and for producing pharmaceutical compositions.
Patent CA-2276163-C (CA)
Title: Valve for aerosol container
Inventor: GIOVANNI PATRICK DI
IPC: A61M15/00
Filed: 1997-12-23
Granted: 2002-10-01
Abstract: Valve for an aerosol container for dispensing a suspension of a substance in a liquid propellant contained therein. The valve comprises a valve body (1) having at least one orifice (16) to allow a quantity of the suspension to pass from the container into the valve. The valve further comprises a ring (18) disposed around the valve body (1), the ring being positioned below the at least one orifice to reduce the volume of suspension that can be accommodated within the container below the at least one orifice when the container is orientated with the valve at the bottom, the ring having at least one portion of reduced axial thickness to provide a trough (19) around the valve body below the at least one orifice.
Patent CA-2277999-C (CA)
Title: The 74 kilodalton outer membrane protein from moraxella catarrhalis
Inventor: CHEN DEXIANG
IPC: C07K14/22
Filed: 1998-01-29
Granted: 2010-09-07
Abstract: A protein from the M. catarrhalis designated the 74 kD protein is isolated and purified. The 74 kD protein has an amino-terminal amino acid sequence which is conserved among various strains of M. catarrhalis. The protein has a molecular weight of approximately 74,9 kD as measured on a 10 % SDS-PAGE gel, while its molecular weight as measured by mass spectrometry is approximately 74 kD. The 74 kD protein is used to prepare a vaccine composition which elicits a protective immune response in a mammalian host to protect the host again disease caused by M. catarrhalis.
Patent CA-2278416-C (CA)
Inventor: CHUNG CHONG-SAM
IPC: G11B7/135
Filed: 1998-11-21
Granted: 2002-10-29
Abstract: L'invention concerne un système de focalisation optique qui utilise un faisceau lumineux émis par une source de lumière. Ce système comprend une surface de réfraction d'un côté du système de focalisation optique présentant un premier rayon de courbure. Il comporte également une première surface de réflexion sur le côté susmentionné, entourant la surface de réfraction, et présentant un deuxième rayon de courbure différent du premier rayon de courbure, une surface de focalisation de faisceaux transparente de l'autre côté du système de focalisation optique, et une deuxième surface de réflexion sur l'autre côté susmentionné et entourant la surface de focalisation de faisceaux. La surface de réfraction réfracte un faisceau lumineux incident. La deuxième surface de réflexion reflète un faisceau lumineux réfracté par la surface de réfraction vers la première surface de réflexion, et cette première surface de réflexion focalise un faisceau de lumière laser reflété à partir de la deuxième surface de réflexion sur la surface de focalisation de faisceaux, sous forme d'un faisceau ponctuel focalisé. Le système de focalisation optique peut être utilisé dans un capteur optique. Ce capteur optique utilise le système de focalisation optique pour générer, à partir d'un faisceau lumineux, par exemple, de la lumière laser, émis par une source de lumière, un faisceau ponctuel utilisé pour enregistrer ou lire les informations sur un support d'enregistrement. Le capteur optique utilise un effet de champ proche assuré par un système de focalisation optique selon la présente invention, pour permettre une densité supérieure d'enregistrement ou de lecture. En outre, le système de focalisation optique selon l'invention peut utiliser un faisceau lumineux présentant un diamètre de faisceau inférieur à celui du faisceau laser utilisé pour un système de focalisation optique existant pour former un champ proche. Ainsi, le capteur optique selon la présente invention peut enregistrer ou lire des informations sur un disque optique dont la densité d'enregistrement de surface est de 10Gbit/pouce?2¿ ou plus. Même lorsqu'une inclinaison de faisceau lumineux incident se produit en raison du mouvement du disque ou du capteur optique, les informations peuvent être enregistrées ou lues à partir d'un disque avec précision. En outre, le système de focalisation optique peut être aisément assemblé et réglé.
Patent CA-2280089-C (CA)
Inventor: SOU MARY
IPC: A61B5/11
Filed: 1998-03-13
Granted: 2009-03-03
Abstract: L'invention concerne une composition ophtalmique améliorée. Cette composition comprend des substances actives de la prostaglandine et est particulièrement utile pour abaisser la pression intraoculaire associée au glaucome. Cette composition présente des améliorations de l'efficacité de la réduction de la pression intraoculaire, de l'efficacité des agents de conservation et des concentrations d'additifs réduites car elle comporte une substance active de la prostaglandine (par exemple, de l'isopropyl unoprostone, un métabolite d'une prostaglandine de la série F) en association avec des tensio-actifs non ioniques sélectionnés, des conservateurs et des agents d'ajustement de la tonicité non ioniques.
Patent CA-2282919-C (CA)
Inventor: NAKAGAWA KURAO
IPC: H02M7/10
Filed: 1999-09-22
Granted: 2002-11-12
Abstract: A high-voltage power supply circuit is disclosed that receives ac input, effects rectification and successive multiplication, and outputs a high do voltage. The high-voltage power supply circuit includes a plurality of diode bridges connected to secondary winding of the transformer in series by way of capacitors, that effect full-wave rectification of the ac voltage outputted from the secondary winding. The high-voltage power supply circuit further includes a plurality of capacitors provided for each of the diode bridges that accumulate charges from the output voltage that has undergone full-wave rectification.      Voltage that is a multiple of the maximum value of the ac voltage within the secondary winding and the number of stages of diode bridges (an integer multiple) is outputted at each of the connection points of the diode bridges.
Patent CA-2283915-C (CA)
Title: The use of alkyl hydrogen fumarates for treating psoriasis, psoriatic arthritis, neurodermatitis and enteritis regionalis crohn
Inventor: JOSHI RAJENDRA K
IPC: A61K31/19
Filed: 1998-12-08
Granted: 2002-12-03
Abstract: The use of one or several alkyl hydrogen fumarates of the general formula  (see formula I)  wherein R is a C1-5 alkyl, optionally in admixture with dialkyl fumarate of the formula  (see formula II)  and optionally customary pharmaceutical excipients and carriers for preparing a pharmaceutical composition in the form of micro-tablets or micro-pellets for treating psoriasis, psoriatic arthritis, neurodermatitis and enteritis regionalis Crohn.
Patent CA-2287852-C (CA)
Inventor: HAMMA JOHN C
IPC: G01L7/04
Filed: 1998-06-10
Granted: 2003-12-16
Abstract: Dispositif amortisseur (46, 70, 78) destiné à un manomètre (11), dans lequel une courte longueur de manchon (50), de bague (72), de moyeu (80), entourant l'axe de l'aiguille (19) d'une manière étroite mais lâche, est enveloppée d'un fluide (58) ayant une viscosité élevée, de façon à ralentir et à amortir les chocs soudains ou les forces pulsatiles qui sinon seraient transmises audit axe (19).
Patent CA-2289147-C (CA)
Inventor: HOMAN EDWIN DARYL
IPC: E21B21/06
Filed: 1996-08-28
Granted: 2000-06-20
Abstract: A system for separation of fluids and drill cuttings received from a borehole during an under-balanced drilling procedure. The system is designed to cope with significantly varied pressures and flow rates, particularly in relation to gas content of drill fluids returned to the surface during the drilling process in a production zone, and to provide effective separation and to reduce the detrimental effect due to the presence of the drill cuttings in the returned drill fluids. In the present invention there is utilized a first stage, high pressure vessel in which a major portion of the gases ad drill cuttings are separated, and a second stage, horizontal low pressure vessel, preferably of greater volume than the high pressure vessel, in which further separating is achieved, including the separate removal of the drilling liquid to be returned to the drill tube. Because in under-balance drilling, the most serious variation in the pressure of the returning fluid is due to rapid increases in the proportion of gases in the drill fluid, the system of the present invention includes features allowing the control of the operating pressure in the high pressure vessel by way of the flow control of the gases exiting the high pressure vessel while the remaining separating procedure continues to provide effective results.
Patent CA-2290358-C (CA)
Inventor: YAGI MASATO
IPC: G07F1/02
Filed: 1999-03-17
Granted: 2004-05-11
Abstract: A coin handling device, as a first invention, comprising a cable (20), a liquid guide means (61) for guiding liquid falling via a cable guide hole (10a) into a device body (2), a liquid storing means (62) and a liquid discharging means (63). A coin handling device, as a second invention, wherein a coin selection unit (101, 201) comprising a coin guide means (181), a liquid collecting means (182) and a liquid discharging means (183) is equipped with a liquid flow-in means (184) for allowing liquid falling via the coin guide means (181) to flow into those portions of the coin selection unit (101, 201) other than the liquid sorting means (182), a liquid passing means (185) and a liquid flow-out means (186, 216) for continuously feeding the passed liquid to the liquid discharging means (183).
Patent CA-2293187-C (CA)
Inventor: VILTARD JEAN-CHARLES
IPC: F25J3/02
Filed: 1999-12-21
Granted: 2008-11-18
Abstract: Procédé permettant de fractionner un gaz où - on refroidit le gaz de T 0 à une température T1, - on envoie au moins une partie de la phase gazeuse G1 à une étape de détent e (X1) de manière à obtenir une phase mixte M2 à une température T2 et une pression P2, - on envoie la phase mixte M2 à une étape d'échange de chaleur où elle joue le rôle d'agent de réfrigération, et à l'issue de laquelle elle est réchauffée, - on envoie la phase liquide L1 à une étape de détente, - on envoie la phase mixte réchauffée et la phase liquide détendue à une éta pe de séparation pour obtenir une phase gazeuse et une phase liquide, et - on fractionne la phase gazeuse par distillation réalisée à l'aide d'un échange de chaleur continue avec la phase mixte M2 et, on extrait les constituants dits légers sous forme de gaz et les constituants lourds sous forme de condensats, l'étape de fractionnement étant réalisée après l'étape de détente de la phase mixte M2.
Patent CA-2303255-C (CA)
Title: System and method for endoluminal grafting of bifurcated or branched vessels
Inventor: WISSELINK WILLEM
IPC: A61F2/90
Filed: 1998-09-08
Granted: 2008-01-29
Abstract: The present invention is a system, and method for endoluminal grafting of a main anatomical conduit (e.g., the aorta), various branch conduits (e.g., si de branch vessels such as the carotid, innominate, subclavian, intercostal, superior mesenteric, celiac, or renal arteries or furcation such as the iliac arteries) which emanate from the main anatomical conduit. The grafting system generally comprises a primary graft having at least one opening therein, at least one branch graft which is passable through the opening of the primary graft, and into the branch conduit(s) suc h that the proximal end of each branch graft is in substantially fluid tight sealing contact with the primary graft. Also disclosed is a specific system, a method for graftin g a bifurcated anatomical conduit (e.g., the aorta ilea bifurcation) through onl y a single access opening (puncture site or incision), and a new balloon anchoring guid e wire system.
Patent CA-2303289-C (CA)
Title: Sewing ring having increased annular coaptation
Inventor: STOBIE ROBERT
IPC: A61F2/24
Filed: 1998-07-16
Granted: 2006-10-24
Abstract: A sewing ring for implantation of prosthetic heart valves has a compliant ri ng member made of a plurality of cells. The ring member may be silicon rubber and the cells defined within outer walls and inner rib s. A biocompatible fabric covering surrounds at least an outer portion of the ring member, and the assembly mounts to a mechanical or tissu e- type prosthetic heart valve. The ring member has a radial dimension and cross-sectional area sufficient to ensure a large coaptation area between the sewing ring and the annulus tissue so as to enable adequate attachment of the valve without load distributing devices su ch as pledgets. A version of the sewing ring for attachment to the mitral annulus includes a curved coaptation edge, while another embodime nt for attachment to the aortic annulus has a tapered outer edge with increased radial and axial dimensions. The sewing ring eliminates the need for pledgets, reduces the number of sutures required, lessens the potential for decubitous ulceration, and provides a better seal against perivalvular leakage. Moreover, the aortic valve sewing ring is sufficiently flexible and large to be able to be placed infra- or supra-annularly, as the surgeons deem best for the patient.
Patent CA-2312579-C (CA)
Title: Adjustable pedal
Inventor: DJORDJEVIC NEBOJSA
IPC: B60T7/06
Filed: 2000-06-23
Granted: 2009-10-20
Abstract: A pedal assembly has a mounting bracket for mounting the pedal assembly on a vehicle. A link is pivotally connected to the mounting bracket for movement about a first pivot axis. The link is operably connectable to a control system of the vehicle. A pivot connection mechanism pivotally connects an arm of the pedal to the link for movement about a second pivot axis which is spaced from the first pivot axis. The pivot connection mechanism has a drive operably connected to the arm for effecting articulating movement of the pedal relative to the mounting bracket about the second pivot axis. The pivot connection mechanism has a taumel gear connection between the arm and the link providing continuous engagement therebetween. The pivot connection mechanism is enclosed to protect against dirt and debris.
Patent CA-2316429-C (CA)
Inventor: PROBIAN DIRK
IPC: B41N3/00
Filed: 2000-08-18
Granted: 2004-05-18
Abstract: A method for reversible imaging of a printing form is provided included feeding a coated transfer film between a printing form and an image information transfer unit having a transfer head. A surface of the printing form is then imaged using image data oriented activation to transfer the transfer film coating in the form of image spots to the printing form. The transfer film is removed from between the printing form and the image information transfer unit. The transferred image spots are fixed on the printing form by re-imaging or fixing the image spots using image data oriented activation. Remaining image information from the printing form is removed or erased once the printing operation is complete so that the printing form is capable of being used in a subsequent printing operation. A device for performing the method is also provided. Optionally, a single laser beam or a plurality of laser beams may be used in the device.
Patent CA-2321875-C (CA)
Title: Method for preparing an aqueous hydrogen peroxide solution directly from hydrogen and oxygen and implementing device
Inventor: DEVIC MICHEL
IPC: B01J19/18
Filed: 1999-01-29
Granted: 2008-07-15
Abstract: A catalytic process and a device for preparing, in absolute safely, aqueous hydrogen peroxide solutions at high concentration levels directly from hydrogen and oxygen; more particularly, a method whereby hydrogen and oxygen are injected, into the aqueous medium in proportions corresponding to the flammability range of the hydrogen-oxygen mixture, and are present in proportions outside the flammability range in the continuous gas phase. The invention also concerns a device for implementing the method.
Patent CA-2331400-C (CA)
Inventor: WEBSTER BRIAN A
IPC: G21G1/10
Filed: 1999-04-20
Granted: 2004-05-18
Abstract: Palladium-103 radiochemical of high radionuclidic purity can be produced in commercial scale quantities by irradiating enriched Palladium targets comprising a mixture of Pd isotopes with protons or deuterons in the 10-50 MeV energy range. Commercially viable batch sizes with acceptable specific activity of the product Pd-103 are achieved by adjusting the irradiation energy, irradiation time, irradiation current, current density, plated target mass, plated target shape plated target size, target isotope enrichment levels, and incident angle of the target to the beam. The method for the production of Pd-103 comprises providing a target material enriched with Pd isotopes comprising atomic masses equal to or greater then Pd-103, applying the target material onto a target support; irradiating the target material with protons or deuterons of sufficient incident energy and time to convert at least some of the Pd isotopes within the target material to Pd-103; and purifying Pd from the non-Pd components.
Patent CA-2336460-C (CA)
Inventor: TAKAHASHI MASATOSHI
IPC: H01M4/505
Filed: 2001-02-14
Granted: 2009-12-22
Abstract: In a non-aqueous electrolyte secondary cell having a positive electrode mainly composed of a positive electrode active material, a negative electrode, and a non-aqueous electrolyte, the positive electrode active material includes a lithium-containing transition metal complex oxide represented with hexagonal structure by the general formula LiCo1-x M x O 2, wherein M is at least one element selected from the group consisting of V, Cr, Fe, Mn, Ni, Al, and Ti, and a crystallite size (110) of the lithium-containing transition metal complex oxide is greater than 1000 .ANG.. Thereby, the thermal stability of the positive electrode active material is increased, and the discharge characteristic and the charge-discharge characteristic of the cell are improved.
Patent CA-2340733-C (CA)
Title: Method and apparatus for determining the nature of subterranean reservoirs
Inventor: JOHANSEN STALE
IPC: G01V3/12
Filed: 1999-08-26
Granted: 2007-08-14
Abstract: A system for determining the nature of a subterranean reservoir (12) whose position and geometry is known from previous seismic surveys. An electromagnetic field (24, 25, 26, 27) is applied by a transmitt er (18) on the seabed (14) and detected by antennea (21, 22, 23) also on the seabed (14). The nature of the detected reflected waves (25, 26, 27) is used to determine whether the reservoir (12) contains water or hydrocarbons.
Patent CA-2342038-C (CA)
Inventor: BOWMAN STEVEN M
IPC: A61F2/48
Filed: 2001-03-23
Granted: 2010-03-16
Abstract: A method of affixing a graft to bone using a the combination of a graft fixation device and an insertion member. The fixation device is useful for affixing a tissue graft to a bone or other body surface. The graft fixation device comprises two implantation members connected by a connecting member. The implantation members have longitudinal passageways therethrough. The insertion device member similarly has a longitudinal passage.
Patent CA-2343336-C (CA)
Title: Processes for preparing intermediates to nizatidine
Inventor: MODER KENNETH PHILIP
IPC: C07D277/28
Filed: 1992-05-20
Granted: 2004-10-19
Abstract: The present invention provides novel processes utilizing toluene as solvent for preparing intermediates of formula:    of value in the synthesis of the anti-ulcer compound nizatidine of formula:
Patent CA-2346853-C (CA)
Title: Alkylation of benzene to form linear alkylbenzenes using fluorine-containing mordenites
Inventor: ANANTANENI PRAKASA RAO
IPC: B01D3/32
Filed: 1999-10-19
Granted: 2009-01-27
Abstract: This invention is directed to a fluorine-containing mordenite catalyst and use thereof in the manufacture of linear alkylbenzene (LAB) by alkylation of benzene with an olefin. The olefin may have from about 10 to 14 carbons. The fluorine-containing mordenite is prepared typically by treatment with an aqueous hydrogen fluoride solution. The benzene alkylation may be conducted using reactive distillation.  This invention is also directed to a process for production of LAB having a high 2-phenyl isomer content by use of the fluorine-containing mordenite in conjunction with a conventional solid LAB alkylation catalyst.  The two catalysts may be used in a mixed catalyst bed or may be packed in series, with the relative proportions being adjusted to provide a desired 2-phenyl isomer content in the final product.