baber/WOPTO huggingface dataset:
Patent CA-2292768-A1 (CA)
Title: Fatty acyl-coa: fatty alcohol acyltransferases
Inventor: METZ JAMES GEORGE
IPC: C12N15/32
Filed: 1998-06-05
Abstract: By this invention, nucleic acid sequences encoding for fatty acyl-CoA: fatty alcohol acyltransferase (wax synthase) are provided, wherein said wax synthase is active in the formation of a wax ester from fatty alcohol and fatty acyl-CoA substrates. Of special interest are nucleic acid sequences obtainable from a jojoba embryo wax synthase having an apparent molecular mass of approximately 33kD. Also considered are amino acid and nucleic acid sequences obtainable from wax synthase proteins and the use of such sequences to provide transgenic host cells capable of producing wax esters.
Patent CA-2293590-A1 (CA)
Title: Process for liquefying a natural gas stream containing at least one freezable component
Inventor: COLE ERIC T
IPC: F25J3/02
Filed: 1998-06-26
Abstract: This invention is a process for producing pressurized liquid (19) rich in methane from a multi-component feed stream (10) containing methane and a freezable component having a relative volatility less than that of methane. The multi-component feed stream (10) is introduced into a separation system (31) having a freezing section operating at a pressure above about 1,380 kPa (200 psia) and under solids forming conditions for the freezable component and a distillation section positioned below the freezing section. The separation system (31) produces a vapor stream (14) rich in methane and a liquid stream (12) rich in the freezable component. At least a portion of the vapor stream is cooled to produce a liquefied stream rich in methane having a temperature above about -112 °C (-170 °F) and a pressure sufficient for the liquid to be at or below its bubble point to produce a product (20) and a stream (21) to provide refrigeration to the separation system.
Patent CA-2294244-A1 (CA)
Title: Cyclin dependent kinase inhibiting purine derivatives
Inventor: CURTIN NICOLA JANE
IPC: A61K31/7052
Filed: 1998-07-10
Abstract: A range is disclosed of purine derivatives (I) which can act as inhibitors of cyclin dependent kinases (CDKs) and which thereby c an provide useful therapeutic compounds for use in treatment of tumours or other cell proliferation disorders. The compounds of this invention bind to CDK molecules in a manner that appears to be different to that of known CDK inhibitors such as olomoucine and roscovitine. In formula (I), in preferred embodiments: X is O, S or CHRx where Rx is H or C1-4 alkyl; D is H, halo or NZ1Z2 where Z1 and Z2 are each independently H or C1-4 alkyl or C1-4 hydroxyalkyl; A is selected from H, C1-4 alkyl, C1-4 alkoxy, hydroxy, CH2(CH2)nOH (n=1-4), and NRa1Ra2 where Ra1 and Ra2 are each independently H or C1-4 alkyl; B is selected from H, C1-4 alkyl, C1-4 alkoxy, CF3, an optionally substituted aryl (e.g. phenyl) or an optionally substituted aralkyl (e.g. benzyl), and an hydroxy group that provides a C=O tautomer; and Y is or includes an optionally substituted 4- to 8-membered carbocyclic or heterocyclic ring; or comprises an optionally substituted linear or branched hydrocarbon chain.
Patent CA-2294753-A1 (CA)
Title: High speed semiconductor laser driver circuits
Inventor: LINK GARRY N
IPC: H01S5/042
Filed: 1998-06-24
Abstract: A semiconductor laser driver circuit that provides single supply operation over a wide supply voltage range (e.g., 3V to 5.5V), is capable of high speed data transmission, and is programmable over a wide laser modulation current range (such as 5mA to 60mA). The circuit includes temperature sensitive circuits to adjust for changes in Vbe over the operating temperature range, and to adjust a bias current to maintain transistor gm in the presence of temperature changes. Also included is an adaptive drive feature to accommodate different laser drive currents. Details of these and other features are disclosed.
Patent CA-2296100-A1 (CA)
Title: Embedded network management system
Inventor: ALLGOOD OTTIE E
IPC: H04L12/24
Filed: 1999-05-03
Abstract: A network management system includes an embedded node, having network database and communications elements, which is coupled locally on an ECHELON network. This local coupling provides a relatively high bandwidth connection to accommodate relatively high traffic volume between the network database and nodes for improved system performance relative to prior art configurations. Locally coupling the network database to the network eliminates the need to tunnel various messages needed to effect a network service when using a tiered architecture common in the HVAC industry. The communications elements include com ports adapted to couple the embedded node to a workstation via a conventional network, and to an ECHELON network.
Patent CA-2300754-A1 (CA)
Inventor: KALAJZICH TODD ANTHONY
IPC: A42B3/06
Filed: 2000-03-17
Abstract: The present invention relates generally to a safety helmet (10) including an insertable peak (12). The safety helmet (10) further includes a moulded head piece (14) which is substantially half-spherical in shape and together with a peaked crown (16) is of a conventional construction. The moulded head piece (14) includes a peak support (18) which includes a cut-out (20). The cut-out (20) is shaped complementary to and adapted to insertably receive the peak (12). Importantly, the insertable peak (12) is injection moulded from a transparent material.
Patent CA-2300846-A1 (CA)
Title: A proton exchange membrane fuel cell power system
Inventor: STOKES RONALD G
IPC: H01M8/10
Filed: 1998-10-15
Abstract: A proton exchange membrane fuel cell power system for producing electrical power is described and which includes a plurality of discrete fuel cell modules (100) having at least two membrane electrode diffusion assemblies (150), each of the membrane electrode diffusion assemblies having opposite anode (153) and cathode (154) sides; a pair of current collectors (190) individually disposed in juxtaposed ohmic electrical contact with opposite sides of the membrane electrode diffusion assemblies; and individual force application assemblies (200) applying a given force to the pair of current collectors and the individual membrane electrode diffusion assemblies. The proton exchange fuel cell power system also includes an enclosure mounting a plurality of subracks which receive the discrete fuel cell modules. Additionally, a control system is disclosed which optimizes the performance parameters of the discrete proton exchange fuel cell modules.
Patent CA-2301079-A1 (CA)
Inventor: AUDOUSSET MARIE-PASCALE
IPC: A61K8/00
Filed: 1999-06-02
Abstract: The invention concerns an oxidation dyeing composition for keratinous fibres, and in particular human keratinous fibres such as hair comprising, in a suitable dyeing medium, at least a first oxidation base selected among pyrazolo-[1,5-a]-pyrimidines, N,N'-bis-(.beta.-hydroxyethyl), N,N'-bis-(4'-aminophenyl) 1,3-diamino propanol as second oxidation base, and at least a coupling agent selected among the meta-aminophenols and the meta-phenylenediamines, and the dyeing method using said composition.
Patent CA-2303230-A1 (CA)
Inventor: HENNEN EUGENE G
IPC: C09J7/40
Filed: 1998-08-31
Abstract: A release liner for use with a pressure sensitive adhesive. The release liner includes a film of a thermoplastic elastomeric olefin.
Patent CA-2303812-A1 (CA)
Title: Carbonates particulaires et leur preparation et utilisation dans des compositions de film thermoplastique
Inventor: SHURLING DICKEY S
IPC: C08K9/04
Filed: 1999-05-21
Abstract: L'invention concerne un procédé de production d'un film imper-respirant, le procédé consistant: (a) à produire une matière de remplissage inorganique en traitant des particules d'une matière inorganique particulaire comprenant un composé de carbonate métallique alcalino-terreux par mise en réaction avec un agent de traitement de surface à propriété hydrophobe comportant un ou plusieurs acides carboxyliques aliphatiques qui présentent au moins 10 chaînes d'hydrocarbones, afin de produire un revêtement hydrophobe sur les particules dans des conditions telles que la matière de remplissage produite possède un niveau d'humidité superficielle, y compris l'humidité adsorbée sur les particules et piégée dans le revêtement hydrophobe les recouvrant, ne dépassant pas 0,1 % en poids sur la base du poids à sec de la matière particulaire inorganique; (b) à produire une composition thermoplastique avec charge en mélangeant la matière de remplissage inorganique produite à la phase (a) avec un polymère thermoplastique chauffé; puis à mettre en forme la composition produite à la phase (b) par traitement à chaud pour former un produit en film.
Patent CA-2304291-A1 (CA)
Title: Profiled spacer for insulation glazing assembly
Inventor: GOER BERNHARD
IPC: E06B3/663
Filed: 1998-08-18
Abstract: The present invention relates to a profiled spacer for a spacing frame which is placed in the edge area of an insulation glazing assembly for forming an intermediate spacing between window panes. Said spacer comprises a chamber (10) for receiving hygroscopic materials and having at least one support leg (30, 36) resting on the inner surface of the pane at least on one side of said chamber, wherein said leg is connected to the chamber by a bridge section (32, 34). This profiled spacer is characterised in that its profiled body is made of a low thermal conductivity material capable of resilient and plastic deformation. The support leg at least is further connected by material connection to a reinforcing layer (40) capable of plastic deformation.
Patent CA-2304809-A1 (CA)
Title: Process for the preparation of hydroxy substituted gamma butyrolactones
Inventor: HOLLINGSWORTH RAWLE I
IPC: C07C69/675
Filed: 1998-09-29
Abstract: Preparation of 4-hydroxy substituted butyrolactones is described. A process for the preparation of 3-hydroxybutyrolactone, 1,2,4-trihydroxybutane and 3,4-dihydroxy acid methyl ester from malic acid is particularly described. The preparation of 4-hydroxymethyl-4-hydroxybutyric acid-1-methyl ester and 4-hydroxymethyl butyrolactone is particularly described. The compounds are interme-diates to various pharmaceutical and agricultural products.
Patent CA-2305002-A1 (CA)
Title: Toner for development of electrostatically charged image
Inventor: NAKAMURA TORU
IPC: G03G9/093
Filed: 2000-04-11
Abstract: A toner for development of an electrostatically charged image including a binder resin, a function imparting agent, a colorant and a charge control agent, wherein said binder resin contains an olefin polymer having a cyclic structure, and a combination of two or more waxes having different melting points in the range of 80 to 140°C is used as said function imparting agent. A toner for electrostatically charged image developing copiers and printers which has a broad offset-free temperature range and can attain a satisfactory fixability even in the high-speed copying can be provided.
Patent CA-2305826-A1 (CA)
Title: Breathable film compositions and articles and method
Inventor: MCAMISH LARRY
IPC: B32B27/12
Filed: 2000-04-11
Abstract: A breathable film is composed of a uniform blend of two thermoplastic resin s, one having a high moisture vapor transmission rate and the other having a lo w rate. The blend is melt extruded into a film having good handling characteristics and a controlled degree of moisture vapor transmission, as determined by blend rat io per unit of film thickness.
Patent CA-2305939-A1 (CA)
Title: Echangeur de chaleur a tubes souples, notamment pour vehicule automobile
Inventor: MARTINS CARLOS
IPC: F28F9/013
Filed: 2000-04-14
Abstract: L'invention concerne un échangeur de chaleur, notamment pour un équipement de véhicule automobile, comprenant une pluralité de tubes (1) destinés à acheminer un fluide d'échange thermique et réalisés dans un matériau souple, ainsi que deux plaques collectrices (2a,2b) parallèles et comprenant des ouvertures (3a,3b) pour loger respectivement les extrémités de chaque tube (1). Ces ouvertures (3a,3b) sont agencées en rangées parallèles pour former un faisceau de rangées de tubes parallèles. Selon l'invention, les rangées successives de l'une des plaques (2a) sont alternativement décalées vers une première direction, parallèle aux rangées, puis vers une seconde direction opposée à cette première direction, et les rangées de l'autre plaque (2b) sont respectivement décalées vers la seconde direction, puis vers la première direction, de sorte que les tubes de deux rangées consécutives se croisent entre les deux plaques collectrices (2a,2b). De plus, deux rangées successives d'une même plaque (2a) sont espacées d'un interstice (d) voisin d'une épaisseur de tube, de sorte que les tubes de deux rangées consécutives, en se croisant, sont en contact (C).
Patent CA-2307689-A1 (CA)
Inventor: JESSEY DENNIS
IPC: E21B37/10
Filed: 2000-05-05
Abstract: This invention pertains to a novel two-component oil well swab which is useful for cleaning and swabbing the interior of oil well pipes. A two-component oil well swab comprising: (a) an interior tubular component having groups of circumferential ribs formed around the exterior surface thereof in series; (b) an exterior component moulded over the exterior of the internal component, the exterior component having formed along the exterior length thereof an alternat-ing series of broad exterior ribs and angled narrow exterior ribs, with grooves formed between the broad and angled narrow exterior ribs.
Patent CA-2307699-A1 (CA)
Inventor: PILON RICHARD
IPC: B65G57/00
Filed: 2000-05-05
Abstract: The present invention is directed to a separator (1) for separating lumber in a stack, which permits air circulation to reduce sticker stain, and which permits easy flowing of the boards as they are being unloaded. In accordance with the invention, this object is achieved with a separator (1) having a length (L), a width (W) and a height (H), a top surface (3) and a bottom surface (5), the top and bottom surfaces each having a central axis (A) extending along the length of the separator (1). The top and the bottom surfaces are provided with at least one ridge (10) extending along the length of the separator (1) and forming a zigzag or sinuous pattern. The separator (1) is preferably manufactured from wood.
Patent CA-2307853-A1 (CA)
Inventor: GRIMM ERICH
IPC: A61P21/00
Filed: 1998-10-27
Abstract: L'invention se rapporte à des composés représentés par la formule (I) ainsi qu'à un procédé de traitement des maladies liées à la présence de cyclo-oxygénase-2 (COX-2), consistant à administrer à un patient justiciable d'un tel traitement une quantité thérapeutiquement efficace et non toxique du composé représenté par la formule (I), par exemple une (5R)-3-(3,4-difluorophényl)-5-éthyl-5-méthyl-4-[4-(méthylsulfonyl)phényl]-2,5-dihydro-2-furanone.
Patent CA-2308444-A1 (CA)
Inventor: IGLESIAS PEREZ ENRIQUE
IPC: A61P37/04
Filed: 1999-09-03
Abstract: L'invention concerne le domaine de la médecine et en particulier l'utilisation de nouvelles formulations d'adjuvants avec des antigènes vaccinaux. L'objectif technique de l'invention est le développement de formulations capables de potentialiser la réponse immune de l'organisme à des vaccins d'acides nucléiques. Afin d'atteindre cet objectif, on a développé une formulation qui contient en tant que composants fondamentaux l'acide nucléique vaccinal et l'acémannane dans des proportions adéquates, ainsi que des agents de stabilisation et de conservation. Les formulations de cette invention s'appliquent dans l'industrie pharmaceutique en tant que formulations vaccinales à la fois pour l'homme et l'animal.
Patent CA-2308559-A1 (CA)
Inventor: MURTHY K S KESHAVA
IPC: C07D327/04
Filed: 2000-05-16
Abstract: A compound of the formula A,   wherein R* is a chiral auxiliary, and where the configuration at the asymmetric carbon atom between oxygen and sulfur is (R), (S), or combinations of (R) and (S), useful in the preparation of enantiomerically enriched 1,3-oxathiolane nucleoside analogues, for example (-)-FTC and 3TC.
Patent CA-2308818-A1 (CA)
Title: Cooking appliance with base suitable for supplying thermal energy by electromagnetic induction and conduction
Inventor: MORONI VITALIANO
IPC: A47J37/10
Filed: 2000-05-18
Abstract: Cooking appliance for the supply of thermal energy by electromagnetic induction and conduction, of the type comprising a ferromagnetic base covering and base, wherein the base covering forms a surface for resting on the cooking plate having a predetermined curve, the appliance having the base with one or more cuts through its thickness, and being manufactured by adjusting the thickness of the base and of the base, and the shape, arrangement and quantity of cuts cuts, in such a way as to reduce to a minimum the deformation of said support surface.
Patent CA-2309725-A1 (CA)
Inventor: OLANDER DONALD E
IPC: A62D1/06
Filed: 1998-11-12
Abstract: The invention relates to flame suppression compositions including an inorganic halogen-containing component including bromine, iodine, or a mixture thereof, and an organic binder system having a heat of formation of less than about 200 cal/g, wherein the composition is solid at a temperature below 100 ~C and combusts at a temperature between about 160 ~C to 1200 ~C to produce a plurality of reaction products capable of suppressing a flame upon application thereto and wherein substantially all the halogen is converted to a solid form after suppressing the flame. The invention also relates to methods of suppressing flames by combining an inorganic halogen-containing component including bromine, iodine, or a mixture thereof, with an organic binder system having a heat of formation of less than about 200 cal/g to form a solid composition, generating a plurality of reaction products from the composition in a substantially gaseous form, wherein the reaction products have a velocity, and applying the reaction products at a temperature of between about 160 ~C to 1200 ~C to at least one flame in an amount sufficient to suppress the flame, wherein substantially all the halogen is solid after suppressing the flame.
Patent CA-2312452-A1 (CA)
Title: Tire with tread of novel polymer blend including styrene-rich styrene/isoprene/butadiene segmented terpolymer
Inventor: SANDSTROM PAUL HARRY
IPC: C08K5/548
Filed: 2000-06-27
Abstract: Rubber compositions comprised of novel blends of segmented styrene-rich styrene/isoprene/butadiene terpolymer elastomer and at least one additional elastomer and tires with treads comprised of such rubber composition. Such tires may exhibit increased traction and reduced rolling resistance.
Patent CA-2313088-A1 (CA)
Title: An animal ear tag
Inventor: HILPERT JEAN-JACQUES
IPC: A01K11/00
Filed: 1998-12-03
Abstract: An animal ear tag including coupling means (12, 14, 21) for installing the ear tag with an animal's ear, the coupling means having a stem (12) with a head portion (14) and a female opening (21) through which the head portion (14) can pass to effect a coupling action, the female opening (21) being formed as part of a separate enclosed boss component (17) of hard material which is fastened to material forming a further part (11) of the ear tag.
Patent CA-2313753-A1 (CA)
Inventor: GMEINER MARCUS
IPC: B27G19/02
Filed: 2000-07-12
Abstract: A saw including a saw head for receiving a saw blade, with the saw blade and displaceable in an immersion direction of the saw blade, a blade protection holder connected with the saw head, a blade protection member at least partially covering the saw blade and displaceable relative to the blade protection holder parallel to the blade immersion direction, with the blade protection member having a stop facing in the blade immersion direction and with a distance (L1) between a free end region of the blade protection member facing in the (L2) blade immersion direction and the stop corresponding at most to a distance between a mating surface of the blade protection holder facing in a direction opposite the blade immersion direction and the free end region of the blade protection member facing in the blade immersion direction, and elements for showing an immersion depth of the saw blade as the saw blade becomes immersed into a sawn component.
Patent CA-2318434-A1 (CA)
Title: Thrombogenic polypeptide chimeras and conjugates having activity dependent upon association with tumor vascular endothelium
Inventor: HOUSTON L L
IPC: A61K47/48
Filed: 1998-12-22
Abstract: Thrombosis-initiating chimeric polypeptides and conjugates, where Figure 1 portrays one of the disclosed examples of the latter, are provided, as well as compositions comprising same and nucleic acid constructs encoding same. At least one component of a chimera or a conjugate is specific for one or more external features of the vascular endothelium of vessels nourishing a tumor and at least one thrombotic component is substantially inactive when not associated with said tumor vascular endothelium, permitting specific destruction of cancer cells of solid tumors in an animal.
Patent CA-2318485-A1 (CA)
Title: Bore hole transmission system using impedance modulation
Inventor: HUDSON STEVEN MARTIN
IPC: E21B47/12
Filed: 1999-01-15
Abstract: A data transmission system for use in extracting data from a downhole location in a well is disclosed. The well has electrically conductive downhole structure (2, C) which together with an earth return forms a signal circuit which is used to transmit data. A current source (34) is provided at the wellhead for applying a reference signal to the downhole structure (2, C). Effective impedance varying means (48) are located downhole and used for varying the effective impedance of the signal circuit in dependence on data to be transmitted to the wellhead. Monitoring means (35) for monitoring changes in the reference signal caused by varying the effective impedance of the signal circuit are located at the wellhead. Monitoring these changes allows data to be extracted. A separate reference earthing point may be provided for the monitoring means to alleviate the effect of imperfections in the earth connection (S) used to complete the signal circuit.
Patent CA-2319745-A1 (CA)
Inventor: HILDEBRANDT VOLKER
IPC: C08K3/011
Filed: 1999-02-02
Abstract: The invention relates to a continuous method for producing a polyamide, comprising the following steps: (1) reaction of at least one aminonitrile with water at a temperature of between 90 and 400 °C  and a pressure of between 0.1 and 35 × 10 6 Pa in a tubular flow reactor containing a Bronsted acid catalyst selected from a beta zeolite, sheet silicate or titanium dioxide catalyst (2) further reaction of the reaction mixture at a temperature of between 150 and 400 °C and a pressure which is lower than the pressure in step 1, where the temperature and pressure are selected such that a first gaseous phase and a first liquid or first solid phase or a mixture of a first solid and first liquid phase is obtained, and the first gaseous phase is separated; and (3) addition of the first liquid and/or first solid phase to a gaseous or liquid phase containing water, at a temperature of between 150 and 370 °C and a pressure of between 0.1 and 30 x 10 6 Pa, resulting in a product mixture.