baber/WOPTO huggingface dataset:
Patent CA-2250734-A1 (CA)
Title: Method of producing amines and aminonitriles
Inventor: FISCHER ROLF-HARTMUTH
IPC: C07C209/48
Filed: 1997-04-03
Abstract: The invention concerns a method of producing compounds containing NH2 groups by the hydrogenation of compounds which include at least one carbon-nitrogen bond with hydrogen in the presence of a catalyst, at a temperature not below room temperature and at an elevated hydrogen partial pressure optionally in the presence of a solvent.  The hydrogenation is carried out under the following conditions:   a) a catalyst containing cobalt and/or iron is used b) if the yield, based on the compound being hydrogenated, and/or the selectivity, based on the desired product, drops below a defined value or if the amount of an undesired side-product increases to more than a defined value, the hydrogenation is interrupted by stopping the feed of the compound being hydrogenated and, if present, also the solvent, c) the catalyst is treated with hydrogen at a temperature in the range 150 to 400°C, using a hydrogen pressure of 0.1 to 30 MPa and a treatment time of 2 to 48 h and d) the hydrogenation is subsequently continued, and the catalysts containing cobalt and/or iron are regenerated.
Patent CA-2256700-A1 (CA)
Title: Sequencing by ligation of encoded adaptors
Inventor: BRENNER SYDNEY
IPC: C12Q1/68
Filed: 1997-06-02
Abstract: The invention provides a method of nucleic acid sequence analysis based on the ligation of one or more sets of encoded adaptors to the terminus of a target polynucleotide. Encoded adaptors whose protruding strands form perfectly matched duplexes with the complementary protruding strands of the target polynucleotide are ligated, and the identity of the nucleotides in the protruding strands is determined by an oligonucleotide tag carried by the encoded adaptor. Such determination, or "decoding" is carried out by specifically hybridizing a labeled tag complement to its corresponding tag on the ligated adaptor.
Patent CA-2258089-A1 (CA)
Title: Process and apparatus for conveying printed products
Inventor: SIEBENMANN DIETER
IPC: B42C19/08
Filed: 1997-07-11
Abstract: A process and apparatus for conveying pressroom products (1) in a conveyor direction (F) and along a conveyor path (Z) effect transport of the pressroom products (1), which are held in the region of a lateral edge (1a) by a gripper, such that each pressroom product (1) during its conveyance, with the gripper (3) maintaining its holding action, is rotated about a rotational axis (D) which is essentially perpendicular to the lateral edge (1a) being held, which is oriented to the conveyor direction in such a way that the angle between the conveyor direction (F) and a normal (N) running at a right angle to the main surface (2) of the given pressroom product (1) is changed in order to rotate the orientation of the main surface (2) relative to the conveyor direction (F).
Patent CA-2261073-A1 (CA)
Title: Method and apparatus for making plastic pipe without mechanical pressure on inner pipe wall
Inventor: LUPKE MANFRED A A
IPC: B29C48/13
Filed: 1997-05-20
Abstract: A method of making double wall plastic pipe (8) having inner (8) and outer (5) pipe walls adhered to one another without mechanically holding the inner pipe wall against the outer pipe wall comprises extruding separate streams of molten plastic into a mold tunnel (3) to form the inner and outer pipe walls and producing a positive gas pressure which acts internally of and forces the inner pipe wall (8) outwardly against the outer pipe wall (5) while the pipe is being formed in the mold tunnel (3).
Patent CA-2265723-A1 (CA)
Title: Improvements in or relating to variable focus lenses
Inventor: SILVER JOSHUA DAVID
IPC: G02B3/14
Filed: 1997-09-09
Abstract: A variable focus lens comprises first and second transparent, flexible membranes (2) which are tensioned and which define a cavity (30) in which a transparent, silicone oil (4) is sealed. Adjustment of the pressure or volume of the oil in the cavity changes the focal length of the lens. To fabricate the lens, the periphery of each membrane (2) is engaged between two rings (8, 10; 10, 12) of a set of three interengaging rings (8, 10, 12). The interengaged rings are crimped together to tension the membranes (2) and seal the cavity (30).
Patent CA-2267334-A1 (CA)
Title: Pipeline communication system
Inventor: AUSTIN DAVID
IPC: H04L27/148
Filed: 1997-09-24
Abstract: A pipeline communication system employs the pipeline (10) and the adjacent ground and includes branches with junctions (11 and 12). Governor modules (14) and transformer/rectifiers form part of the network. Monitors (16, 17 and 18) periodically provide information to the network controller (20). The system control (22) receives information via outstation (21) to provide two way communication and control using the pipeline and the adjacent ground as conductors. Typically the information in the form of fast frequency shift keying modulation is superimposed on the cathodic pipe protection system.
Patent CA-2267943-A1 (CA)
Title: 5-heteroatom-containing alkyl substituted-3-oxo-pyrido(1,2-a) benzimidazole-4-carboxamide derivatives useful in treating central nervous system disorders
Inventor: SMITH ANNA V
IPC: A61P25/30
Filed: 1997-10-03
Abstract: A compound of general formula (1) is disclosed as useful in treating disorders of the central nervous system. Pharmaceutical compositions and methods of treatment are also disclosed.
Patent CA-2269464-A1 (CA)
Inventor: ANDRE TORE
IPC: G06F17/14
Filed: 1997-09-29
Abstract: The present invention relates to a device and a method for calculating FFT, IFFT or like transforms with the aid of a calculating unit (110) and at least two memories (111, 112). The calculating unit (110) reads input values from memory positions in the memories (111, 112), performs a group of calculations in at least one calculation step, and writes the output values obtained with these calculations into memory positions in the memories (111, 112). The invention comprises the steps of reading-in and intermediately storing the input values for calculation in different groups of calculations. When all input values necessary for a current group of calculations have been read in and the calculations in a preceding group of calculations have terminated at least one first calculation step, calculations in the current group of calculations are commenced. The output values from the current group of calculations are stored intermediately until the output values from the preceding group of calculations have been written, and are then written back into the same memory positions as those from which the input values were read, whereafter the output values can function as new input values. This enables at least two groups of calculations to be commenced at one and the same time.
Patent CA-2275779-A1 (CA)
Title: Composition and method for producing fuel resistant liquid polythioether polymers with good low temperature flexibility
Inventor: JORDAN DAVID WELDON
IPC: C08G75/04
Filed: 1998-02-19
Abstract: A polythioether includes a structure having the formula (I): -R1-[-S-(CH2)2-O-[-R2-O-]m-(CH2)2-S-R1-]n-, wherein R1 denotes a C2-6 n-alkylene, C3-6 branched alkylene, C6-8 cycloalkylene or C6-10 alkylcycloalkylene group, -[(-CH2-)p-X-]q-(-CH2-)r, or -[(-CH2-)p-X-]q-(-CH2-)r- in which at least one -CH2- unit is substituted with a methyl group, R2 denotes a C2-6 n-alkylene, C2-6 branched alkylene, C6-8 cycloalkylene or C6-10 alkylcycloalkylene group, or -[(-CH2-)p-X-]q-(-CH2-)r-, X denotes one selected from the group consisting of O, S and -NR6, R6 denotes H or methyl, m is a rational number from 0 to 10, n is an integer from 1 to 60, p is an integer from 2 to 6, q is an integer from 0 to 5, and r is an integer from 2 to 10. The polythioether is a liquid at room temperature and pressure.
Patent CA-2275918-A1 (CA)
Title: Adhesive for secure topical attachment to the skin and comfortable removal
Inventor: ROMANO MARIO
IPC: C09J129/04
Filed: 1997-12-22
Abstract: The present invention relates to topical adhesives for attachment to the skin. In particular the present invention relates to such topical adhesives which can be employed for attachment to the skin in the area where absorption of bodily liquids is desired. The topical adhesive provides secure attachment and is pleasing to the skin upon application, yet causes no discomfort upon removal. This is achieved by selecting the chemical composition and rheological characteristics of the topical adhesives.
Patent CA-2277803-A1 (CA)
Title: Procede et dispositif de calcul de tfr
Inventor: OERLING ANDERS
IPC: G06F17/14
Filed: 1998-01-15
Abstract: L'invention concerne un procédé et un dispositif de calcul de la Transformée de Fourier Rapide (TFR) sur une entrée en série de blocs de données. Deux tampons d'entrée partagent un organe de traitement des données de manière qu'à n'importe quel moment, un tampon soit en mesure de recevoir des données d'entrée pendant que les données sont traitées dans l'autre tampon. Pour éviter l'inversion des bits du bloc de données dans le tampon d'entrée et supprimer ainsi une opération consommant du temps dans la TFR, on écrit des blocs de données d'entrée dans le tampon en mettant les bits alternativement dans l'ordre normal et dans l'ordre inversé. Lorsque les données de sortie sont en ordre inversé dans le tampon, l'adressage du tampon se fait dans cet ordre inversé de manière que les points de données soient envoyés à la sortie dans le bon ordre. Et, les nouvelles données d'entrée sont écrites dans le tampon dans l'ordre inversé.
Patent CA-2281238-A1 (CA)
Title: An automatic gain control for digital radar intercept receivers
Inventor: LAVOIE PIERRE
IPC: H03G3/30
Filed: 1999-09-01
Abstract: An automatic gain control (AGC) circuit for electromagnetic wave receiving systems, such as radar warning receivers, has a number of N parallel paths to which analog IF input signals are applied with each path being connected to one of N inputs of an output switch. Each path contains a free running sampling analog-to-digital converter (ADC) that digitizes an amplified analog IF input, the digitized signals being applied to inputs of digital delay units whose output are supplied to the output switch's inputs. The amplification in each of the N paths is fixed and staggered to provide different fixed amplifications of the IF input to the ADCs. The AGC has a leading edge trigger (LET), a trailing edge trigger (TET) and a track-and-hold circuit that samples and holds the amplitude of an input pulse starting at the leading edge as demarked by the LET. Writing of the digitized signal from the ADCs into digital delay units is started and stopped by signals from a control circuit based on a pulse's LET and TET. A pulse's TET activates the control circuit which compares the sampled and held amplitude in the track-and-hold circuit to references levels and selects a gain setting amongst the N paths that produced the largest digitized version of the analog IF pulse without ADC over-range. The control circuit then sets the output switch to the selected path and reads the data in that path out to provide a pulse-to-pulse AGC signal.
Patent CA-2286125-A1 (CA)
Inventor: WONG TING-WAH
IPC: G11C16/14
Filed: 1998-04-07
Abstract: A nonvolatile memory cell which is highly scalable includes a cell formed in a triple well. The control gate is negatively biased. By biasing the P-well and drain (or source) positively within a particular voltage range when erasing, GIDL current and degradation from hole trapping can be diminished and hence a highly scalable technology may be achieved.
Patent CA-2286522-A1 (CA)
Title: Diversity communication system and method of operation thereof
Inventor: POLASEK MARTIN
IPC: H04L1/06
Filed: 1999-10-18
Abstract: The invention is a diversity radio reception method and system of operation where at least two diversity radio signals are received each containing a sequence of corresponding data units which are each subject to intermittent error bursts which are one to Y data units in duration wherein Y is an integer equal to at least one. Corresponding data units of the sequence of data units of the at least two diversity radio signals are compared to identify at least one corresponding data unit in the at least two diversity radio signals which differs. When no difference in at least one corresponding data unit is identified, one of the at least two sequences of corresponding data units are outputted. When at least one difference in at least one data unit of the sequence of corresponding data units is identified, each data unit within the at least one difference of the sequence of corresponding data units is processed to output each data unit within each difference having a higher probability of not containing an error.
Patent CA-2289969-A1 (CA)
Inventor: GLAZIER ARNOLD
IPC: C07F9/6561
Filed: 1998-05-15
Abstract: Cette invention se rapporte à de nouveaux promédicaments représentés par la formule (I) dans laquelle Z est oxygène ou soufre; Y est, en association à un groupe hydroxy, acyclovir ou analogue d'acyclovir; A est un groupe benzyle substitué comportant un ou plusieurs groupes hydroxy protégés ou groupes amine protégés en positions ortho ou para, par rapport à l'ester phosphorique, qui peut être converti in vivo en un groupe hydroxy ou amino. Cette invention se rapporte également à un procédé de traitement des infections virales chez un humain ou un animal, qui consiste à administrer audit humain ou animal, une quantité thérapeutiquement efficace d'un promédicament représenté par la formule structurelle décrite ci-dessus.
Patent CA-2290389-A1 (CA)
Title: Platelet suspensions and methods for resuspending platelets
Inventor: FARRELL LIAM C
IPC: A61K35/14
Filed: 1998-05-15
Abstract: Platelet suspensions and methods for resuspending platelet concentrates are disclosed. The platelet concentrates are resuspended by combining a platelet concentrate with a substance capable of resuspending platelets, such as a salt solution. The resuspended platelets may be stored and/or administered to a patient.
Patent CA-2290411-A1 (CA)
Title: A flowable composition and a process for making the flowable composition
Inventor: HOWIE JOHN KEENEY
IPC: A23L33/20
Filed: 1998-05-20
Abstract: A flowable nondigestible oil composition having a Consistency in a temperature range of 20 ~C to 40 ~C of less than about 600 P.sec(n-1), preferably less than about 400 p.sec(n-1). The flowable nondigestible oil contains a liquid component having a complete melt point less than 37 ~C, and a solid component having a complete melt point of at least about 37 ~C. At least one of the solid component and the liquid component includes a material selected from esterified linked alkoxylated polyols, such as esterified linked alkoxylated glycerines; esterified epoxide-extended polyols; and mixtures thereof. A method for making the composition is also disclosed.
Patent CA-2291003-A1 (CA)
Inventor: KIM YOUNG HWA
IPC: A41D31/00
Filed: 1998-05-27
Abstract: A puncture, pierce, and cut resistant fabric comprised of a plurality of sheets of solid objects arranged in a repeating pattern. The solid objects are connected so that they are slideable relative to one another. Each sheet is in a stacked arrangement with the other sheets and are slideably interconnected to one another. Rivets are placed through apertures formed in or between the solid objects to hold the fabric together and to provide the slideable interconnection between the sheets. An interconnecting material interconnects the sheets of solid objects. An interconnecting material of elastomer returns the sheets from a stretched position to a compressed position. The fabric is formed with a means for limiting the movement of the solid objects relative to one another a predetermined amount, such as an elastomeric material inherently stretchable to a predetermined limit. The fabric is twistable, bendable, and stretchable. It is constructed of material that will withstand cutting, puncture, and piercing forces encountered in medical or other environments.
Patent CA-2293222-A1 (CA)
Inventor: DICKSON MICHAEL C
IPC: G16B50/40
Filed: 1998-06-10
Abstract: A drug discovery research system (100) which includes a plurality of computers (110 and 112). The drug discovery research system (100) provides for at least one of the plurality of computers to run a multi-platform object oriented programming code, and at least one of the plurality of computers to store drug discovery related data. The system (100) has a network architecture (300) interconnecting the plurality of computers (110, 112). The network architecture (300) allows objects to transparently communicate with each other. The drug discovery research system (100) provides for integrating and organizing data to facilitate drug discovery research.
Patent CA-2294821-A1 (CA)
Inventor: BURNS STEVEN BRUCE
IPC: C08G18/48
Filed: 1998-07-09
Abstract: La présente invention concerne des mousses rigides de polyuréthanne présentant une résistance à la flamme améliorée. Les mousses sont préparées à partir d'une composition constituée (a) d'un isocyanate, (b) d'une composition d'isocyanate réactive contenant un polyol de aromatique polyester, (c) un composé organo-phosphoré et (d) un C¿1?-C¿4? hydrofluorocarbone.
Patent CA-2295720-A1 (CA)
Title: Transdermal therapeutic system (tts) for administering sexual steroid hormones
Inventor: ARTH CHRISTOPH
IPC: A61K9/70
Filed: 1998-06-29
Abstract: The invention relates to a transdermal therapeutic system (TTS) for transcutaneal administration of sexual steroid hormones over long periods. The inventive system consists of a fixing aid and a polymethacrylate-based matrix containing steroid hormones. The invention also relates to a solvent-free, active substance-saving method for the production thereof. The inventive TTS  is characterized by physical and chemical stability. It displays good adhesive properties over long periods of administration and releases high rates of active substance per surface unit through the skin. One advantage of the production process is that the active substances are subjected to as little thermal exposure as possible, thereby minimizing decomposition or disintegration reactions of said active substances.
Patent CA-2295873-A1 (CA)
Inventor: DEMICHELIS JACQUES
IPC: B25D13/00
Filed: 1998-06-25
Abstract: Marteau électromagnétique à masse ferromagnétique mobile, comprenant un tube (1) destiné à reposer par l'intermédiaire d'une enclume sur un élément à enfoncer (50), portant un bobinage périphérique (2), une masse (14) reçue à coulissement dans le tube (1), et des moyens d'alimentation en énergie électrique reliés au bobinage (2) pour exciter celui-ci de façon à engendrer un champ électromagnétique de soulèvement de la masse, la masse venant frapper l'enclume sous l'action de son propre poids lorsque le bobinage n'est plus excité, le bobinage (2) étant réalisé par enroulement autour du tube (1), et le tube étant en matériau amagnétique et comprenant des moyens (3, 4, 5, 6) de reprise des efforts axiaux, et de transmission de ces efforts à l'enclume (13) lors de la remontée de la masse (14). Les moyens d'alimentation comprennent un volant d'inertie associé à un moteur rotatif et à un alternateur.
Patent CA-2296267-A1 (CA)
Title: Goggles with dual lens structure
Inventor: BARAGAR MARC C
IPC: A61F9/02
Filed: 2000-01-19
Abstract: Goggles having a transparent body adapted to be worn over the eyes and including anterior and posterior lenses spaced apart to permit fluid flow therebetween.  The anterior lens is shaped so as to reduce fluid drag and the posterior lens is shaped to minimize visual distortion.
Patent CA-2299393-A1 (CA)
Inventor: KIM SUNG WAN
IPC: A61K47/34
Filed: 1998-08-08
Abstract: A system and method for the parenteral delivery of a drug in a biodegradable polymeric matrix to a warm blooded animal as an aqueous liquid with the resultant formation of a hydrogel depot for the controlled release of the drug. The system comprises an injectable biodegradable block copolymeric drug delivery liquid having thermal gelation properties. The copolymer has a gel/sol transition temperature such that, above the body temperature of the animal to which it is administered, it is a solution and when administered and cooled to body temperature it forms a hydrogel. The copolymer is made up of (i) a hydrophobic A polymer block of poly (.alpha.-hydroxy acid) and (ii) a hydrophilic B polymer block comprising a poly(ethylene oxide). The drug is released at a controlled rate from the copolymer which biodegrades into non-toxic products. The gel/sol transition temperature and degradation rate can be adjusted by proper selection of the molecular weight and concentration of the poly (.alpha.-hydroxy acid) and poly(ethylene oxide) polymer block components.
Patent CA-2300072-A1 (CA)
Title: Procede et systeme de demodulation de symboles de donnees
Inventor: HOOK MIKAEL
IPC: H04L25/03
Filed: 1998-09-11
Abstract: L'invention porte sur un procédé et un système de démodulation de symboles de données (d¿1?-d¿N?) ayant été transmis par un canal de communications, particulièrement un canal affecté d'un ou plusieurs défauts. Les échantillons reçus de signaux <o>(?)</o> représentant les symboles de données transmis (d¿1?-d¿N?) sont stockés puis démodulés à la fois dans de sens aller (320), et dans le sens retour (330), par l'intermédiaire d'un démodulateur/égalisateur. Pendant la démodulation sont produits un premier (S¿F?), et un deuxième (S¿B?) ensemble de valeurs douces (S¿k??F¿; S¿k??B¿) chacun associé à un certain symbole de données (d¿k?) (340). On détermine à partir de chacune des valeurs moles (S¿k??F¿; S¿k??B¿) une valeur mole commune (S¿k??J¿) pouvant par exemple être utilisée pour dériver un ensemble résultant de symboles de données (d¿1?-d¿N?), ou pour décoder directement l'information de charge utile contenue dans les symboles de données (d¿1?-d¿N?).
Patent CA-2303094-A1 (CA)
Inventor: GANS EUGENE H
IPC: A23L27/20
Filed: 1999-07-01
Abstract: La présente invention concerne une technique permettant de produire des sensations de soulagement et de refroidissement dans des tissus tels que ceux des zones cutanées sensibles et des membranes des muqueuses. Pour produire une sensation de refroidissement appréciable, du diméthyléther peut être appliqué sur les tissus visés sous forme d'un liquide ou d'un gaz produit par un liquide vaporisé, avalé ou appliqué avec un bandage ou un pansement. L'application peut également se faire avec une pastille, un suppositoire ou une autre forme posologique solide qui libère le diméthyléther au niveau du tissu visé. L'intensité et la durée de l'effet de refroidissement appréciable est obtenu lorsque le diméthyléther est appliqué à des concentrations infimes. On a également découvert que cette technique peut améliorer la perception de la saveur des aliments, des boissons et des bonbons.
Patent CA-2304522-A1 (CA)
Inventor: KAWAI EIJI
IPC: G06F9/445
Filed: 1999-07-29
Abstract: L'invention concerne un procédé pour démarrer un appareil de traitement de données pouvant introduire une variété d'éléments dans une image qui est affichée lorsque l'appareil de traitement de données est démarré selon une séquence d'amorçage. Une carte mémoire (3) comprend une mémoire flash (21) servant à stocker des données d'amorçage devant être exécutées selon une séquence d'amorçage de l'appareil de traitement de données (2), et une unité centrale (22) présentant une fonction de transmission pour transmettre les données d'amorçage de la mémoire flash (21) vers l'appareil de traitement de données (2) et une fonction de commande pour la gestion des données. Les données d'amorçage comprennent un programme d'affichage d'image de démarrage servant à afficher une image de démarrage lorsque l'appareil de traitement de données (2) est démarré, ou servant à afficher ses données d'image de démarrage.