baber/WOPTO huggingface dataset:
Patent CA-2309612-A1 (CA)
Inventor: STEARNS DANIEL G
IPC: G02B1/10
Filed: 1998-11-10
Abstract: A passivating overcoat bilayer is used for multilayer reflective coatings for extreme ultraviolet (EUV) or soft x-ray applications to prevent oxidation and corrosion of the multilayer coating, thereby improving the EUV optical performance. The overcoat bilayer comprises a layer of silicon or beryllium underneath at least one top layer of an elemental or a compound material that resists oxidation and corrosion. Materials for the top layer include carbon, palladium, carbides, borides, nitrides, and oxides. The thicknesses of the two layers that make up the overcoat bilayer are optimized to produce the highest reflectance at the wavelength range of operation. Protective overcoat systems comprising three or more layers are also possible.
Patent CA-2310703-A1 (CA)
Inventor: DUFEU L JORGE
IPC: B29C48/29
Filed: 1998-11-20
Abstract: The present invention discloses a generic method for producing void and gas occlusion free materials, as well as apparatuses for batch and continuous production of same. This generic method can be utilized in the production of a wide variety of polymeric compounds and composites and specifically encompasses the two ends of the polymeric composite spectrum, that is, polymer concretes on the one hand, and fiber-reinforced polymer composites on the other. The composite materials of the present invention are characterized by visual count as being void and gas occlusion free to the level of 1 micron at 1250x magnification. Concomitantly, the invention produces useful polymer concrete materials which exhibit substantially improved integrity for easy machining at high speeds, and high dielectric and mechanical strength, as compared with composite materials produced by conventional methods. Thus, one particularly well-suited application for the materials of the present invention is the class of high voltage electrical insulating materials and insulators where the presence of voids, or gas occlusion flaws, may have deleterious effects, leading to their early failure.
Patent CA-2314114-A1 (CA)
Inventor: RICHMAN LANCE T
IPC: E21B10/26
Filed: 2000-07-18
Abstract: A drill bit for boring a bore hole in an earthen formation comprises a bit body having a pin end, a cutting end and a longitudinal axis and including at least two legs extending from the cutting end, each of the legs including a leading side surface, a trailing side surface, and a shoulder, each of the legs further including a bearing and a cutter cone rotatably supported on the bearing, and the bit body further including a fluid flow system, including a flowway in said pin end, the flowway being in fluid communication with at least one exit port in the cutting end, the bit body further including a neck between the shoulders and the pin end and a hard, wear- resistant material on at least a portion of the neck.
Patent CA-2315289-A1 (CA)
Inventor: MISRA SANTOSH
IPC: C07K14/415
Filed: 2000-08-18
Abstract: The invention provides a Douglas-fir 2S seed-storage promoter (df2SSP; SEQ ID NO: 17) and methods of its use. The promoter is useful for, among other things, directing the tissue-specific expression of transgenes.
Patent CA-2315487-A1 (CA)
Title: Dynamically varying policy driven print engine
Inventor: PURVIS LISA S
IPC: G06F3/12
Filed: 2000-08-09
Abstract: A scheduler for a machine includes a monitor and a selector. The monitor is used to detect an operation of the machine, the operation of the machine being at least one of a machine state, a machine performance and an environment. The selector is used to either add a selection policy from a library to a list of selection policies or to delete a selection policy from the list of selection policies in response to the detected operation. The selector includes logic to select the monitor from the library based on a model of the machine. The selector may include further logic to select monitor policies from the library, the monitor detecting the operation of the machine based on the selected monitor policies. The model of the machine includes dynamically varying information responsive to the operation detected by the monitor. The scheduler also includes a traverser to select an itinerary based on the list of selection policies.
Patent CA-2316016-A1 (CA)
Inventor: LYMAN STEWART D
IPC: C12N1/19
Filed: 1998-12-23
Abstract: DNA encoding V197 polypeptides and methods for using the encoded polypeptides are disclosed.
Patent CA-2318329-A1 (CA)
Title: Keratinous fibre oxidation dyeing composition containing a laccase and dyeing method using same
Inventor: LANG GERARD
IPC: A61K8/33
Filed: 1998-12-22
Abstract: The invention concerns a ready-to-use composition for oxidation dyeing of keratinous fibres, and in particular human keratinous fibres such as hair comprising, in a medium suitable for dyeing, 3-methyl 4-amino phenol as oxidation base, and at least an enzyme such as laccase, as well as the dyeing method using said composition.
Patent CA-2318497-A1 (CA)
Title: Method and apparatus for measuring the relative density of a gas
Inventor: PRICE BARRY LEONARD
IPC: G01N9/24
Filed: 1999-01-08
Abstract: Apparatus (2) comprises a chamber (4) to which a gas in question, for example natural gas is supplied through inlet (6) and leaves through outlet (8). The speed of sound SoS at ambient temperature is measured using any suitable method such as electronic control and calculating means (14) and an ultra-sound emitter (10) and an ultra-sound receiver (12). The ambient temperatures T a is observed by temperature sensor (22), and a thermal conductivity sensor measures the thermal conductivity of the gas at two different temperatures above ambient temperature.      One value ThC H of the thermal conductivity is measured at 70 °C above ambient and the other value ThC L of the thermal conductivity is measured at 50 °C above ambient.      The control means (14) calculates the relative density RD of the gas according to the formula RD = g.ThC H + h.ThC L + i.SoS + j.T a + k.T a2 + 1 where (g, h, i, j, k and 1) are constants.
Patent CA-2319612-A1 (CA)
Title: Method for regenerating supported catalysts covered with gold particles and used for oxidising unsaturated hydrocarbons
Inventor: WEGENER GERHARD
IPC: C07D301/04
Filed: 1999-01-07
Abstract: The invention relates to a method for regenerating supported catalysts covered with gold particles, based on titanium dioxide or titanium dioxide hydrate and used for oxidising unsaturated hydrocarbons in a gas phase. The invention is characterised in that the catalyst is regenerated by contacting it with water, a diluted acid or a diluted hydroperoxide solution, to restore its catalytic activity. The invention also relates to the use of regenerated catalysts for oxidising ethene, propene, 1-butene or 2-butene in the gas phase.
Patent CA-2321798-A1 (CA)
Title: Dispersant a base de polymere aqueux ramifie pour materiaux hydrophobes
Inventor: ANTONELLI JOSEPH ALBERT
IPC: C09D155/00
Filed: 1998-03-06
Abstract: La présente invention concerne une dispersion aqueuse convenant à l'élaboration de compositions de peinture à l'eau contenant un matériau hydrophobe en dispersion, un support aqueux, un dispersant aqueux et un polymère ramifié (liant). Ce polymère ramifié, qui présente une masse moléculaire moyenne en poids d'environ 5.000-100.000 pour une teneur massique en ossature hydrophile de 20-80 % avec simultanément une teneur massique de 80-20 % en chaînes latérales de macromonomères. L'ossature est constituée de monomères éthyléniquement insaturés polymérisés pour 2-30 % de la masse des monomères éthyléniquement insaturés polymérisés portant un groupe à fonction acide. De plus, 10 % au moins des groupes à fonction acide, qui sont neutralisés par une amine ou une base inorganique, sont hydrophiles par rapport aux chaînes latérales. Enfin, les chaînes latérales sont des macromonomères de monomères éthyléniquement insaturés polymérisés formant par polymérisation l'ossature via un groupe éthyléniquement insaturé. Les macromonomères présentent une masse moléculaire moyenne en poids d'environ 1.000-30.000, le rapport pondéral hydrophile / liant se situant approximativement entre 1/100 et 200/100.
Patent CA-2322329-A1 (CA)
Title: Abrasif dentaire ameliore
Inventor: HASSAN MAHMOUD
IPC: A61K8/25
Filed: 1999-02-23
Abstract: L'invention concerne des compositions orales telles que des gels buccaux et des pâtes dentifrices contenant un nouvel abrasif hydrogel de silice à faible pouvoir d'abrasion et à fort pouvoir nettoyant.
Patent CA-2324051-A1 (CA)
Title: Tube assembly for auxiliary heating and air conditioning system
Inventor: MOURAD MATTHEW
IPC: F28D7/10
Filed: 2000-10-23
Abstract: A tube assembly for an auxiliary heating and air conditioning system includes an inner tube extending longitudinally, an outer tube extending longitudinally and disposed over the inner tube, the outer tube including a plurality of ribs for locating the inner tube approximately concentric to the outer tube, at least one connector tube, and at least one connector interconnecting the at least one connector tube and the outer tube to allow fluid flow between the inner tube and the outer tube.
Patent CA-2325434-A1 (CA)
Title: Surface acoustic wave filter
Inventor: JOHANNES THOMAS
IPC: H03H9/64
Filed: 1999-03-22
Abstract: The present invention relates to a surface-wave acoustic filter having a capacitive and inductive cross-talk which is compensated between adjacent and interdigitated input and output transformers. These transformers (20; 23) are divided into partial transformers (d, d'; e, e') and the guidance of their pads (24, 25; 26, 27) is modified so that the magnetic couplings between adjacent partial transformers have opposite flow directions (H, H') and so that the total magnetic flow induced is equal to zero. The partial transformers are mounted in series or in parallel so that during a symmetrical operation, the cross-talk capacities between adjacent pads and transformer surfaces are compensated at the corresponding gate.
Patent CA-2326225-A1 (CA)
Inventor: KRAMPITZ MARK S
IPC: B60T8/18
Filed: 2000-11-17
Abstract: An empty/load brake control system mountable on a sprung and an unsprung member of a railway car and disposed between the car brake control valve and brake cylinder for adjusting the brake cylinder pressure during a brake application according to the car load condition. Such system includes an empty/load sensor valve device with an inlet passage connected to the brake control valve and an outlet passage connected to the brake cylinder. It further includes a sensor arm coupled to a sensor cable whose movement is controlled by a sprung member and a terminal member disposed on an end of sensor cable, in contact with sprung member so that any downward movement of sprung member forces such terminal member in a similar downward direction and similarly pulls on the sensor cable.      A piston, under pressure, urges the sensor arm to rotate and retract sensor cable but must overcome resistance of a spring. The system includes a load proportional valve having a proportioning mode of operation and a non-proportioning mode of operation in which sensor piston is fluidly connected to a balance piston for supplying fluid under pressure to a second pressure area of the balance piston when the valve device is in an empty setting thereby providing a proportioning mode of operation, and not supplying fluid under pressure to the second pressure area of the balance piston when empty/load sensor valve is in load setting thereby providing a non-proportioning mode of operation.
Patent CA-2326294-A1 (CA)
Inventor: KUNG FEN-CHUNG
IPC: H04Q3/00
Filed: 2000-11-20
Abstract: In an internet telephony system, toll-free service and the calls that are accepted and paid for can be specified by the IP telephony system user to be limited according to the calling party's identity, time of day, day of week or other criteria. Data that is used to screen or filter incoming calls is programmed into a call manager by the IP  telephone system user's broadband residential gateway. Using such a system the user can carefully screen calls that are paid for and more closely control telecommunications service costs. More generally, the user has the ability to store predefined call handling criteria, which may be executed by the broadband residential gateway and/or the call manager.
Patent CA-2328124-A1 (CA)
Inventor: KIM KYUNG-IL
IPC: C07C213/02
Filed: 1999-04-14
Abstract: The present invention relates to a process for preparing chiral (S)-2,3- disubstituted-1-propylamine derivatives and more particularly, to the proces s for preparing chiral (S)-2,3-disubstituted-1-propylamine derivatives express ed in formula (1), performed in such a manner that a carbonyl group of chiral ( S)- 3,4-disubstituted-1-butanecarbonyl derivatives expressed in formula (2) is converted to an amine group through decarbonylation.
Patent CA-2328155-A1 (CA)
Title: Foldable zipper slider with improved compression-type latch
Inventor: BECK ROLAND G
IPC: B65D33/25
Filed: 1999-04-06
Abstract: A foldable plastic slider for straddling relation with a profiled plastic zipper. The straddling slider for closing or opening the zipper by movement therealong, comprising: a transverse support member (12) including opposing sides, a pair of legs (31, 32) depending from the opposing sides of the support member, and a pair of wings (25, 26) hingedly attached to the opposing sides. Each wing has an opening for receiving its respective leg, and each wing has a cored out cross piece (25b, 26b). The cored out cross piece has a solid ramp latch (25a, 26a). The wings are folded relative to the support member and the latches engage the legs to assemble the slider on the zipper in a closed sidewall position.
Patent CA-2331491-A1 (CA)
Inventor: SANDS DAVID C
IPC: A23L7/10
Filed: 1999-05-10
Abstract: Le taux de fermentation, sous l'effet d'un micro-organisme, d'un produit alimentaire peut être régulé à l'aide d'une quantité d'un élément nutritif pour lequel le micro-organisme est auxotrophe. Par exemple, on a produit un pain au levain amélioré à l'aide d'un levain à pain fabriqué avec un chef qui contenait une souche Lactobacillus fermentum, qui est auxotrophe pour la méthionine, ainsi qu'une dose de lactosérum, qui est une source de méthionine, sélectionnée pour arrêter la fermentation lorsque le levain à pain a atteint un niveau d'acidité voulu.
Patent CA-2333238-A1 (CA)
Title: Method and apparatus for computing drill bit vibration power spectral density
Inventor: RODNEY PAUL F
IPC: G01V1/42
Filed: 1999-06-29
Abstract: A power spectrum density processor is located near the drill bit while drilling. The power spectral density processor computes the power spectral density of the vibrations generated by the drill bit while drilling. The power spectral density information is telemetered to the surface. A drill string transfer function is estimated using the drill bit power spectral density, derived from the vibrations of the drill string, measured substantially at the surface, to enhance drill bit seismic techniques.
Patent CA-2333335-A1 (CA)
Inventor: CHARRIERE PATRICK GEORGES VENC
IPC: H04J13/00
Filed: 2001-01-31
Abstract: When a mobile is switched on in a cellular system, it first searches for the best cell that it can connect to and then attempts to send a message to the best cell found. In CDMA cellular systems, the likelihood of a mobile's RACH message being successfully received by a cell is largely dependent on its transmit power. Unfortunately having all mobiles transmit at the maximum power possible is in many circumstances not only unnecessary but also unacceptable due to the resultant intra-cell interference generated. A cellular mobile telephone network is disclosed in which a mobile station requests service in data modulated on a common random access channel (RACH) in a format associated with first a cell in which the mobile station is located. Base stations in cells neighbouring the first cell, are configured to demodulate the RACH message burst having the format associated with the first cell, and to pass the demodulated data to a radio network controller (RNC). This enables the average power required for a successful RACH transmission to be reduced.
Patent CA-2333456-A1 (CA)
Inventor: MCKENZIE JAMES STUART
IPC: G02B6/30
Filed: 1999-04-26
Abstract: Le composant optique (4) est monté sur une puce optique en alignement avec une fibre optique (1) montée à l'intérieur d'une rainure en V (2) formée dans la puce, le composant optique (4) présente deux surfaces de positionnement non parallèles (4A, 4B) venant en aboutement contre des parties de positionnement correspondantes (5, 6) sur la puce afin de placer le composant (4) dans un premier sens (axe Y) sensiblement perpendiculaire au plan de la puce et dans un second sens (axe Z) perpendiculaire audit premier sens (axe Y) et sensiblement perpendiculaire à la longueur (axe X) de la rainure en V (2), et le composant optique (4) est monté sur la puce de manière à surplomber une extrémité (2A) de la rainure en V pour permettre d'amener l'extrémité (1A) de la fibre optique (1) en une relation étroite d'aboutement avec le composant (4).
Patent CA-2333866-A1 (CA)
Inventor: CURRY JON K
IPC: A01K15/02
Filed: 2001-02-01
Abstract: A method and apparatus for reducing the risk that a thrown toy will injure an animal. The apparatus consists of a toy which when thrown bounces erratically, which compressively elastically deforms, which includes a soft fabric outer surface that compresses to absorb blows, and which can withstand being bitten or chewed by a dog.
Patent CA-2335505-A1 (CA)
Inventor: SPORN MICHAEL B
IPC: A61P25/28
Filed: 1999-06-18
Abstract: Compounds and methods useful for chemopreventative treatment of diseases such as cancer, Alzheimer's disease, Parkinson's disease, inflammatory bowel diseases, and multiple sclerosis.
Patent CA-2335588-A1 (CA)
Inventor: ULLMAN EDWIN F
IPC: G01N33/68
Filed: 1999-06-25
Abstract: A non-immunochemical method is disclosed for determining homocysteine in a sample. A combination of the sample and a first compound that comprises a ci s- 1,4-dioxo-2-butene moiety or hydrolytically derived precursor thereto is provided in a liquid medium. The combination is subjected to conditions unde r which homocysteine reacts with the cis-1,4-dioxo-2-butene moiety or hydrolytically derived precursor thereto to form a product, which is then detected without separation of the product from the medium. A second compoun d such as a mercaptan containing reagent or an antibody for cysteine can optionally be included to facilitate discrimination of the product formed fr om homocysteine from products formed from other amines in the sample. The produ ct from the reaction of homocysteine has a six-member ring fused to an unsaturated five-member ring. The junction of the rings is comprised of the nitrogen of homocysteine and an atom that comprises a double bond. The six- member ring comprises the sulfur atom of homocysteine. The amount of the product detected is related to the amount of homocysteine in the sample.</SD OAB>
Patent CA-2336150-A1 (CA)
Inventor: CHEN XI
IPC: C07D277/82
Filed: 1999-06-25
Abstract: L'invention concerne des composés de la formule (A) ou des sels d'addition acides pharmaceutiquement acceptables desdits composés. Dans ladite formule, R¿1? et R¿2? sont identiques ou différents et représentent hydrogène, halogène, alkyle C¿1?-C¿6?, alcoxy C¿1?-C¿6?, alkylthio C¿1?-C¿6?, hydroxy, amino, mono ou dialkylamino(C¿1?-C¿6?), cyano ou trifluorométhyle; Ar est aryle ou hétéroaryle, chacun étant éventuellement substitué par R¿3?, R¿4? et/ou R¿6?; R¿3?, R¿4? et R¿6? sont, indépendamment, hydrogène, halogène, hydroxy, alkyle C¿1?-C¿6?, alcoxy C¿1?-C¿6?, perfluoro-alkyle C¿1?-C¿6?, perfluoro-alcoxy C¿1?-C¿6?, ou SO¿2?NH¿2?; ou R¿3? et R¿4? forment ensemble, avec les atomes auxquels ils sont liés, un noyau de 5 à 7 atomes; et R¿5? est hydrogène ou alkyle C¿1?-C¿6?. Ces composés sont utiles pour le traitement et/ou la prévention de troubles neuropsychologiques, y compris, entre autres, la schizophrénie, la manie, la démence, la dépression, l'anxiété, le comportement compulsif, l'abus de substances psychoactives, les troubles moteurs apparentés à la maladie de Parkinson et les troubles moteurs associés à l'usage de neuroleptiques antipsychotiques.
Patent CA-2336933-A1 (CA)
Title: Silicon carbide horizontal channel buffered gate semiconductor devices
Inventor: SINGH RANBIR
IPC: H01L29/808
Filed: 1999-06-08
Abstract: Silicon carbide channel semiconductor devices are provided which eliminate the insulator of the gate by utilizing a semiconductor gate layer and buried base regions to create a "pinched off" gate region when no bias is applied to the gate. In particular embodiments of the present invention, the semiconductor devices include a silicon carbide drift layer of a first conductivity type, the silicon carbide drift layer having a first face and having a channel region therein. A buried base region of a second conductivity type semiconductor material is provided in the silicon carbide drift layer so as to define the channel region. A gate layer of a second conductivity type semiconductor material is formed on the first face of the silicon carbide drift layer adjacent the channel region of the silicon carbide drift layer. A gate contact may also be formed on the gate layer. Both transistors and thyristors may be provided.
Patent CA-2338032-A1 (CA)
Title: Delivery of a composition to the liver by utilizing the portal vein
Inventor: MANN MICHAEL J
IPC: A61F2/958
Filed: 1999-07-16
Abstract: In general, the invention features methods and apparatuses for delivering a composition to the liver in a non-surgical, percutaneous approach by utilizing the portal vein. Also disclosed are methods allowing for the liver-specific delivery of a composition.
Patent CA-2338690-A1 (CA)
Inventor: MORECROFT DENIS
IPC: H04R1/02
Filed: 1999-07-26
Abstract: An acoustic device, e.g. a loudspeaker, has a transducer (38) coupled via a highly perforate member (36) to an acoustically active area (39) that may be  in the form of a skin over part of the highly perforate member. The highly perforate member (36) may be a mesh. Bending waves may be excited in the highly perforate member (36) by the transducer (38) and sound emitted from t he acoustically active area (39).
Patent CA-2340024-A1 (CA)
Inventor: KANDIN PATRICE
IPC: E06B5/11
Filed: 1998-08-19
Abstract: The invention relates to a device for preventing insertion from the outside of instruments that could pivot the control bar situated on the inside of the skylight. The device is constituted by a box and two narrow strips positioned in an offset manner so as to form a baffle preventing any instrument being inserted while leaving a free passage for ventilation air. Spacers serve to stiffen the assembly. A cap protects the control lever for opening the lock of the skylight, and a fork enables the latch existing on the skylight to be moved.