baber/WOPTO huggingface dataset:
Patent CA-2347552-A1 (CA)
Title: Recovery of zinc from galvanized coatings
Inventor: LAKSHMANAN VAIKUNTAM IYER
IPC: C22B7/00
Filed: 2001-05-14
Abstract: A method for extraction of zinc values from an aqueous alkaline solution of zinc, especially a solution obtained by the stripping of a galvanized coating from a ferrous metal product e.g. steel, or from electric arc furnace dust. The method comprises subjecting the aqueous alkaline solution to solvent extraction using an organic solution of an oxine i.e. an organic extractant containing an 8-hydroxyquinoline group, and separating the organic solution from aqueous alkaline solution. Zinc values are recovered from the organic solution e.g. by stripping with acid and subjecting the resultant aqueous solution containing zinc values for recovery of zinc e.g. to electrowinning or to precipitation of zinc carbonate. The method may be used in the preparation of galvanized steel for recycle to a steel manufacturing plant, with recovery of zinc and for recovery of zinc values from electric arc furnace dust.
Patent CA-2348657-A1 (CA)
Inventor: WEISSENBACH JEAN
IPC: C12P21/08
Filed: 2000-09-04
Abstract: The invention concerns the identification and characterisation of the SPG4 gene coding for spastin, and some mutations thereof responsible for the most frequent form of autosomal dominant familial spastic paraplegia, the cloning and the characterisation of its cDNA and the corresponding polypeptides. The invention also concerns vectors, transformed cells and transgenic animals as well as diagnostic methods and kits, and methods for selecting a chemical or biological compound capable of directly or indirectly interacting with said polypeptide.
Patent CA-2349430-A1 (CA)
Title: Semiconductor laser diode module
Inventor: MIYOKAWA JUN
IPC: G02B6/42
Filed: 2001-05-30
Abstract: A semiconductor laser diode module in which a laser diode and an optical fiber are optically coupled with each other efficiently irrespective of an ambient temperature change within the laser diode module. The laser diode module includes a laser diode, an optical system including an optical fiber and a lens portion, a base configured to support the laser diode and at least a portion of the optical system, and a bottom plate configured to support the laser diode, the optical system, and the base. A portion of the base is made of a material having a first thermal expansion coefficient and the bottom plate is constructed of a material having a second thermal expansion coefficient, where the first thermal expansion coefficient is substantially equal to the second thermal expansion coefficient. The optical system is configured to receive and transmit a beam emitted from the laser diode through the lens portion to the optical fiber.
Patent CA-2349766-A1 (CA)
Inventor: ZWICK DAVID J
IPC: H04Q3/00
Filed: 2001-06-06
Abstract: An addition to AIN that allows SSP triggers to jump to internal SSP addresses for feature processing without a return. The invention takes advantage of the existing AIN trigger mechanism and definitions, and adds the capability of a jump to an internal SSP  address for continued call processing. There is no query sent to an SCP nor the associated response message, call processing is not suspended, and there is no need for fault handling associated with the trigger.
Patent CA-2349826-A1 (CA)
Title: Process for the synthesis of 1-(aminomethyl)cyclohexyl-acetic acid
Inventor: SZALAI KRISZTINA
IPC: C07C205/51
Filed: 1999-12-23
Abstract: The invention relates to a new process for the synthesis of 1-(aminomethyl)cyclohexyl-acetic acid of formula (I) via the new intermedier 1-(nitromethyl)cyclohexyl-acetic acid derivative of formula (II), wherein R represents hydrogen, benzyl group, diphenylmethyl group or C1-C4 alkyl or alkoxy aromatic ring substituted derivatives thereof.
Patent CA-2350352-A1 (CA)
Title: Planar filters utilizing periodic elctro magnetic bandgap substrates
Inventor: LITTLE MATTHEW PATRICK
IPC: H01P1/203
Filed: 2001-06-13
Abstract: The concept of electromagnetic bandgaps (EBG) is used to develop a high quality filter that can be integrated monolithically with other components due to a reduced height, planar design. Coupling adjacent defect elements in a periodic lattice creates a filter characterized by ease of fabrication, high-Q performance, high port isolation and integrability to planar or 3-D circuit architectures. The filter proof of concept has been demonstrated in a metallodielectric lattice. The measured and simulated results of 2, 3 and 6 pole filters are presented at 10.7 GHz, along with the equivalent circuits.
Patent CA-2350837-A1 (CA)
Inventor: ANDERSEN CARSTEN
IPC: C12N1/21
Filed: 1999-11-16
Abstract: The invention relates to a variant of a parent Termamyl-like .alpha.-amylase, comprising mutations in two, three, four, five or six regions/positions. The variants have increased stability at high temperatures (relative to the parent). The invention also relates to a DNA construct comprising a DNA  sequence encoding an .alpha.-amylase variant of the invention, a recombinant expression vector which carries a DNA construct of the invention, a cell which is transformed with a DNA construct of the invention, the use of an .alpha.-amylase variant of the invention for washing and/or dishwashing, textile desizing, starch liquefaction, a detergent additive comprising an .alpha.-amylase variant of the invention, a manual or automatic dishwashing detergent composition comprising an .alpha.-amylase variant of the invention, a method for generating a variant of a parent Termamyl-like .alpha.-amylase, which variant exhibits increased.
Patent CA-2352587-A1 (CA)
Title: Method for searching through a sorted list
Inventor: OLIER RABY
IPC: G06F17/30
Filed: 2001-07-10
Abstract: The method allows to search up for an element through a sorted table. However, instead of splitting the searched table in two, as in the case of binary searches, a method according to the present invention includes splitting the searched table (or list) in three, in four, or in any quantity fit for the search.
Patent CA-2353504-A1 (CA)
Title: Compression-tuned bragg grating and laser
Inventor: KERSEY ALAN D
IPC: G02F1/01
Filed: 1999-12-06
Abstract: A compression-tuned Bragg grating includes a tunable optical element 20, 600 which includes either an optical fiber (10) having at least one Bragg grating (12) impressed therein encased within and fused to at least a portion of a glass capillary tube (20) or a large diameter waveguide grating (600) having a core and a wide cladding. Light (14) is incident on the grating (12) and light (16) is reflected at a reflection wavelength .lambda. 1. The tunable element 20, 600 is axially compressed which causes a shift in the reflection wavelength of the grating (12) without buckling the element. The shape of the element may be other geometries (e.g., a "dogbone" shape) and/or more than one grating or pair of gratings may be used and more than one fiber (10) or core (612) may be used. At least a portion of the element may be doped between a pair of gratings (150, 152), to form a compression-tuned laser or the grating (12) or gratings (150, 152) may be constructed as a tunable DFB laser. Also, the element (20) may have an inner tapered region (22) or tapered (or fluted) sections (27). The compression may be done by a PZT, stepper motor or other actuator or fluid pressure.
Patent CA-2355633-A1 (CA)
Title: Skin care compositions containing cis-9, trans-11 linoleic acid
Inventor: RAWLINGS ANTHONY VINCENT
IPC: A61K8/34
Filed: 1999-12-03
Abstract: A topical composition and cosmetic method for treating skin conditions selected from the group consisting of wrinkling, sagging, photodamaged skin, sensitive skin, dry skin, flaky skin, red skin, irritated skin, itchy skin and age spots, the composition comprising: (a) conjugated linoleic acid, and/or derivatives thereof comprising conjugated linoleic acid moieties, in which at least 50% by weight of the conjugated linoleic acid and/or moieties, is present as the cis 9 trans 11 isomer; and (b) a dermatologically acceptable carrier.
Patent CA-2357111-A1 (CA)
Title: Data network node having enhanced security features
Inventor: YIK JAMES CHING-SHAU
IPC: H04L29/06
Filed: 2001-09-06
Abstract: An apparatus and methods for securely forwarding data packets at a data switching node in a data transport network is provided. The data switching node maintains a switching database of switching entries: Each switching entry has a modification protection feature preventing its modification when activated. Dynamic topology discovery of data network nodes can be disabled via topology discovery control flags associated with individual physical communications ports of the data switching node. Unknown destination flood data traffic is not replicated to physical communication ports having topology discovery disabled or specifying the suppression of replication of such unknown destination data traffic thereto. The advantages are derived from a data switching node being enabled to operate concurrently in friendly and hostile environments while detecting, preventing and reporting incidences of hostile MAC ADDR attacks.
Patent CA-2357708-A1 (CA)
Inventor: BARDHAN BIBHUTI BHUSAN
IPC: H04M1/724
Filed: 2001-09-10
Abstract: This is a cellular telephone in which the sound of the rings announcing an incoming call sounds an adjustably number of times and then increases in intensity gradually, starting with a very low level of sound that can be heard by almost no one other than the bearer of the phone, the level of the sound for each of the said number of times gradually increasing at an adjustably variable rate to any adjustably maximum sound. It also contains a button to announce to the caller a re-recordable message, say, stating that the user is unable at the time to talk to the caller who may call back later. The present invention may be applicable to ordinary wired or wireless telephones.
Patent CA-2358250-A1 (CA)
Inventor: KUYAMA JUNJI
IPC: H01M4/58
Filed: 2001-10-03
Abstract: A method for producing a cathode active material having superior cell characteristics through single-phase synthesis of a composite material composed of a compound represented by the general formula Li x Fe 1-y M y PO4 and a carbon material positively and a method for producing a non-aqueous electrolyte cell employing the so produced cathode active material. To this end, the cathode active material is prepared by a step of mixing the starting materials for synthesis of the compound represented by the general formula Li x Fe 1-y M y PO4, a step of milling a mixture obtained by the mixing step, a step of compressing the mixture obtained by the mixing step to a preset density and a step of sintering the mixture obtained by the compressing step.  A carbon material is added in any one of the move steps prior to the sintering step.  The density of the mixture in the compressing step is set to not less than 1.71 g/cm3 and not larger than 2.45 g/cm3.
Patent CA-2359696-A1 (CA)
Title: Method for improving the startup of an ultrasonic system under zero load conditions
Inventor: WIENER EITAN T
IPC: B06B1/02
Filed: 2001-10-17
Abstract: The start up performance of an ultrasonic system under zero load conditions is improved by setting a phase set point in a frequency control loop such that, at start up under zero load conditions, the phase set point intersects a point on a phase-frequency response curve which has a low positive slope. This intersection point on the phase-frequency response curve changes as the load is increased and the system Q is decreased. The controller "seeks"  a target 0° impedance phase angle. The frequency of the ultrasonic generator is set to an off-resonance frequency which is lower than the resonance of any known hand piece/blade combination. In order for the drive voltage to not exceed the physical limit of the system, the drive current is set to a low level. The drive frequency is then smoothly increased in steps until the target 0° impedance phase delta is located.
Patent CA-2361212-A1 (CA)
Title: Bio-feed back, data acquisition teeth guards, methods of their manufacture and use
Inventor: BUCKNER RANDALL R
IPC: A61F5/56
Filed: 2000-02-01
Abstract: A diagnostic and therapeutic apparatus for use in the evaluation, detection, and treatment of humans that suffer from chronic grinding of the teeth known as "bruxing." The apparatus includes a pressure sensor contained in a mouth piece and electronic for detecting activation of the sensor due to bruxing and for generating an human cognizable output in response to bruxing. The apparatus can also include electronics for storing and analyzing human bruxing activities.
Patent CA-2364240-A1 (CA)
Inventor: CHARTRAND ERIC
IPC: G07F17/32
Filed: 2001-11-29
Abstract: Un jeu de hasard interactif pouvant être joué sur un ordinateur, un télépho ne portable, un PDA ou autre appareil semblable pouvant être connecté à un serveur à travers un réseau comme l'Internet. Le joueur se procure un support sur lequ el un premier code est inscrit. Le serveur génère une série de second codes et en désigne un certain nombre comme des codes gagnants. Lorsque l'appareil du joueur se connecte au serveur, ce dernier crée une association, au hasard, avec un des second codes. Le serveur transmet à l'appareil du joueur les résultats à  savoir si le jeu est gagnant ou non.
Patent CA-2366486-A1 (CA)
Inventor: MURAKAMI RICK V
IPC: G07F7/10
Filed: 2001-01-10
Abstract: A biometrically activated device (50) wherein data derived from detection of  unique internal biometric traits are stored (72) within said biometrically activated device to be compared to stored data relative to said internal biometric markers or traits previously scanned from a user (80) of said biometrically activated device. The biometrically activated device may allow  or disallow access to information, or provide use of, data or a device protected by the biometrically activated device.
Patent CA-2367240-A1 (CA)
Inventor: LANGER SEPPO W
IPC: A61P43/00
Filed: 2000-03-13
Abstract: La présente invention concerne un procédé et un médicament destinés au traitement pharmacologique d'un épanchement accidentel de topoisomérase II toxique telle que les anthracyclines. L'invention concerne en particulier l'utilisation d'un inhibiteur catalytique de topo II tel que la bisdioxopipérazine ICRF-187 pour la production d'un médicament destiné au traitement d'un épanchement accidentel de topoisomérase II toxique et un procédé de traitement d'un tel épanchement d'une topoisomérase toxique telle que les anthracyclines - la daunorubicine, la doxorubicine, d'épirubicine ou l'idarubicine. En plus, l'invention concerne un kit d'un tel traitement.
Patent CA-2369409-A1 (CA)
Inventor: COTE SIMON
IPC: B01J38/50
Filed: 2000-04-06
Abstract: The present invention is concerned a process for the regeneration of the spent silica gel used in chromatography and for any other kind of silica. The process comprises 5 main steps, namely: washing with an extractant of organic compounds and removing volatile organic materials remaining thereafter;  oxidation to oxidize organic compounds remaining and, preferably, bleach the material; washing with an acid to remove soluble inorganic matter; heating to dry the material and combust any remaining organic compounds present; and recovering the regenerated material. Various optional steps can be added to the process.
Patent CA-2371161-A1 (CA)
Title: Treatment of carbon monoxide poisoning
Inventor: CARTER STEPHEN A
IPC: A61M16/12
Filed: 2000-04-26
Abstract: An improved therapy for both clearing the blood of unwanted carbon monoxide and anaesthetic chemicals and for rapidly re-oxygenating blood suffering from carbon monoxide poisoning or smoke inhalation. It also includes a therapy delivery device for carbon dioxide and oxygen metering and mixing apparatus for gases under pressure particularly for respirators and medical devices which has a plurality of compressed gas supply lines which are connected to a mixing device for delivery into a demand regulator (260) (respirator or face mask). It includes a gas selection device (5), an automatic shut off of the carbon dioxide (70), a purging system (290), metering of the gases and a mixing chamber to promote a homogeneous mixture of gases and sized for field use by emergency care operators. The therapy is a mixture of carbon dioxide and oxygen for promoting the rapid oxygenation of the patient's blood supply for cases of carbon monoxide poisoning, smoke inhalation or other cases where the blood oxygen level is low.
Patent CA-2371589-A1 (CA)
Title: Identity-coded surface
Inventor: SILVERBROOK KIA
IPC: G06F17/30
Filed: 2000-05-24
Abstract: A region defined in relation to a surface, and a method for defining such a region; coded data being disposed within the region, the coded data being indicative of an identity of the region; in one embodiment, the coded data comprising a plurality of tags which substantially cover the region, the tags being usable to uniquely identify the region or at least distinguish it from other regions defined in relation to the surface.
Patent CA-2375210-A1 (CA)
Title: Homogeneous tests for sequentially determining lipoprotein fractions
Inventor: CSAKO GYORGY
IPC: C12Q1/61
Filed: 2000-05-26
Abstract: The invention provides new homogeneous assays for the determination of the amount of LDL-C, of HDL-C, and of total cholesterol present in a sample. The  method comprises complexing a first lipoprotein fraction with a complex- forming agent, such as an antibody, using enzymes to detect cholesterol in t he non-complexed lipoprotein fraction, measuring the amount of cholesterol in t he non-complexed fraction to provide a first cholesterol value, and then dissociating the complexed lipoprotein fraction from the complex-forming age nt so that that cholesterol is available to be a substrate for the enzymes. The  total amount of cholesterol present in the sample can then be determined. Further, the first cholesterol value obtained can be subtracted from the tot al cholesterol to obtain a value for the first lipoprotein fraction present in the sample. Optionally, a triglyceride assay can then also be performed on t he sample in the same tube.
Patent CA-2375309-A1 (CA)
Inventor: ASHWORTH ROGER PHILIP
IPC: F16J15/40
Filed: 2000-06-12
Abstract: A running fluid seal arrangement (10) includes a passage for receiving cable (12) with chambers (20,21 and 22). Water at a higher pressure than gas in main (11) is pumped via pump (26) into chamber (21) from a reservoir (27). A  mixture of gas and water from the interface in the region of chamber (20) is passed to a sealed pressure vessel (28). Water therefrom can pass back to reservoir via float valve (29). Wiper seals (30,36 and 37) can also be provided.
Patent CA-2375441-A1 (CA)
Inventor: DITULLIO PAUL A
IPC: C12N15/09
Filed: 2000-06-02
Abstract: L'invention concerne un procédé servant à introduire une molécule d'acide nucléique dans le génome d'une espèce aviaire, ce qui consiste à mettre en contact in vivo une cellule blastodermique d'un oeuf fertilisé avec la molécule d'acide nucléique, cet acide nucléique n'étant pas associé à une protéine de coque virale. Elle concerne également des animaux aviaires transgéniques et des procédés permettant d'obtenir ces animaux transgéniques.
Patent CA-2377373-A1 (CA)
Title: Nitric oxide donors for inducing neurogenesis
Inventor: CHOPP MICHAEL
IPC: A61P25/28
Filed: 2000-06-14
Abstract: There is provided a method of promoting neurogenesis by administering a therapeutic amount of a nitric oxide donor compound to a patient in need of neurogenesis promotion. Also provided is a compound for providing neurogenes is having an effective amount of a nitric oxide donor sufficient to promote neurogenesis. A nitric oxide compound for promoting neurogenesis is also provided. Further, a method of augmenting the production of brain cells and facilitating cellular structural and receptor changes by administering an effective amount of a nitric oxide donor compound to a site in need of augmentation is provided. There is provided a method of increasing both neurological and cognitive function by administering an effective amount of a nitric oxide donor compound to a patient.
Patent CA-2379068-A1 (CA)
Title: Single component toner for improved magnetic image character recognition
Inventor: MARSH DANA G
IPC: G03G9/097
Filed: 2002-03-26
Abstract: Magnetic toner particles are disclosed. The magnetic toner particles contain at least one polymeric binder and at least one magnetic additive, wherein the surface of the toner particle contains particles of positively chargeable inorganic fine powder particles. The inorganic fine powder particles have a mean volume average particle size of from about 0.5 to about 7 µm, and a cleaning ratio of from about 0.1 to about 5.0 and a cleaning ratio being the volume fraction of particles between 0 and 1.0 µm, divided by the volume fraction of particles greater than 1.0 µm; and the toner particles having on the surface thereof a flowability improving agent having a BET surface area of at least about 30 m2/g. Methods of forming electrostatic images are further disclosed. Also, images formed from the magnetic toner particles are further disclosed and have excellent character void frequency, total void area, and suitable magnetic signal strengths. Developers containing the magnetic toner particles of the present invention are also disclosed.
Patent CA-2379176-A1 (CA)
Title: Methods for characterizing, classifying, and identifying unknowns in samples
Inventor: WISE BARRY M
IPC: G01N29/02
Filed: 2000-08-10
Abstract: Disclosed is a method for taking the data generated from an array of responses from a multichannel instrument, and determining the characteristics of a chemical in the sample without the necessity of calibrating or training the instrument with known samples containing the same chemical. The characteristics determined by the method are then used to classify and identify the chemical in the sample. The method can also be used to quantify the concentration of the chemical in the sample.
Patent CA-2380409-A1 (CA)
Title: Procede et appareil d'adaptation a large bande de l'impedance de filtre a resonateur a bande etroite aux impedances de charge et de source
Inventor: PETROVIC BRANISLAV A
IPC: H04B1/26
Filed: 2001-05-24
Abstract: La présente invention concerne un circuit d'adaptation de l'impédance d'un filtre à résonateur à bande étroite présentée à une borne selon une large plage de fréquences qui utilise un second résonateur présentant sensiblement les mêmes caractéristiques de transfert que le filtre à résonateur. Le filtre à résonateur est isolé de la borne de sortie par un résonateur à caractéristique double qui agit comme un court-circuit dans la bande passante du filtre à résonateur, et comme un circuit ouvert dans la bande éliminée du filtre à résonateur. Le second résonateur est isolé de la borne par une résistance dont la valeur se situe dans la plage d'impédance idéale ou souhaitée devant arriver à la borne. Le circuit fournit à la borne une impédance presque égale à l'impédance souhaitée dans la bande éliminée, et une impédance légèrement dégradée dans la bande passante, particulièrement sur la même fréquence que celle du filtre à résonateur. Ce circuit est particulièrement utile lorsque les filtres à résonateurs à bande passante étroite sont utilisés dans des systèmes à voies multiples et à bande large couplés aux ports d'entrée d'une charge sensible à l'impédance, notamment des mélangeurs passifs utilisés dans la conversion de fréquences dans une grande plage de fréquences.