baber/WOPTO huggingface dataset:
Patent CA-2372194-A1 (CA)
Inventor: RANDALL GREG
IPC: A61K9/16
Filed: 2000-04-26
Abstract: Improved spray drying apparati, and methods of use thereof, have been developed.       The spray drying equipment includes a primary drying chamber (20) and a secondary drying apparatus (10) which includes tubing having a length sufficient to increase the contact time between the drying gas and the droplets/particles to dry the particles to the extent desired, at a drying rate and temperature which would be too low to provide adequate drying without the secondary drying apparatus. The secondary drying apparatus increases the drying efficiency of the spray dryer system without increasing the drying rate, while minimizing loss in yield. The ratio of the length of tubing to the length of the primary drying chamber is at least 2:1. The tubing diameter is substantially smaller than the diameter of the primary drying chamber, such that the particles move at higher velocity through the tubing to minimize product losses. The ratio of the cross-sectional area of the primary drying chamber to the cross-sectional area of the tubing most preferably is about 16:1.      The tubing preferably is in a compact coil design, which can more easily be transported and which has minimum space requirements, and may optionally include a jacket to control the temperature of the secondary drying process. A preferred application for the spray drying process and equipment is in the production of microparticles, between about 1 and 200 µm in diameter, which can be used to deliver therapeutic and diagnostic agents.
Patent CA-2372401-A1 (CA)
Title: Arrayed waveguide gratings
Inventor: POUSTIE ALISTAIR JAMES
IPC: G02B6/293
Filed: 2000-05-19
Abstract: An arrayed waveguide grating (WDG) comprises I/O slabs (53a, 53b) interconnected by a grating region (51). The grating region (51) comprises many, e.g. at least 25 and preferably 50 to 500 individual cores (61, 62, 63) which have different lengths so as to provide wavelength selectivity by causing phase changes in light conveyed between the I/O slabs (53a, 53b). There are bends (64) for providing the different lengths and, to improve optical guidance round the bends, empty (R.I. = 1) grooves (71) are located adjacent to the inside (71.1) and outside radii (71.2) so that the evanescent fields extend into the grooves (71). In order to keep the dimensions small, which improves the optical accuracy, tight bends (preferred radii of curvature of less than 2 mm and especially less then 500 µm are desirable. The grooves conveniently have tapered ends and they extend into straight portions adjacent to the bends. The WDG is preferably implemented in silica glass with dopants to adjust the refractive index and/or the melting point.
Patent CA-2372512-A1 (CA)
Title: Diene rubbers containing carboxyl groups
Inventor: SCHOLL THOMAS
IPC: C08K3/013
Filed: 2000-04-20
Abstract: The invention relates to rubber mixtures containing diene rubber groups whic h contain 0.1 - 2 wt. % carboxyl groups and have a glass transition temperatur e of -120 to -50~. The invention also relates to mixtures comprising filling materials, optionally other rubbers and rubber adjuvants and vulcanizates produced therefrom. The inventive rubber mixtures are suitable for use in th e production of fully reinforcing, abrasion-resisting shaped bodies, especiall y in the production of tyre treads which exhibit a particularly high degree of  anti-skid resistance in wet driving conditions, are resistant to abrasion an d offer low rolling resistance. Said rubber mixtures are also suitable for use  in the production of the side walls of tyres, where they display resistance to fatigue.
Patent CA-2373590-A1 (CA)
Title: Diketodiazacyclic compounds, diazacyclic compounds and combinatorial libraries thereof
Inventor: OSTRESH JOHN M
IPC: C07D233/36
Filed: 2000-04-21
Abstract: The synthesis of individual di- and tri-substituted-1,4-diazacyclic compound s having 6- to 8-atoms in the cyclic ring, their corresponding 1,6-diketo-2,5- diazacyclic compounds and similar 1,4-diazacyclic ring compounds having one ring carbonyl group and 6-8 atoms in the ring is disclosed, as are libraries  of such compounds. Methods of preparing and using the libraries of compounds  as well as individual compounds of the libraries are also disclosed.
Patent CA-2375003-A1 (CA)
Title: Method for moulding an optical lens and corresponding installation
Inventor: LAVENIR MARIANNE
IPC: B29C33/30
Filed: 2000-04-19
Abstract: The invention relates to a method for moulding an optical lens by means of two moulding shells (10A,10B) and a closing element (11) acting in the periphery thereof. According to the invention, the moulding shells (10A,10B) are placed in holding means (13A,13B). If necessary, one of the holding means (13A,13B) is made to rotate around a centering axis (A) which is common to the unit. The moulding shells (10A,10B) are removed from the holding means (13A,13B) using removing means (14A,14B). The possible inclination of the moulding shells (10A,10B) is verified in relation to a reference plane. If necessary, their position is adjusted in relation to the removing means (14A,14B) which bear them. Both of the moulding shells (10A,10B) are moved towards each other using the removing means (14A,14B) while maintaining their position in relation thereto. The closing element (11) is placed around the moulding shells (10A,10B) and the moulding cavity (12) thus formed is filled. The invention can be used with optical lenses which are made of a polymerizable material.
Patent CA-2376157-A1 (CA)
Title: A system and method for call record creation and processing
Inventor: BSCHEIDER VALERIE
IPC: H04M3/42
Filed: 2000-06-08
Abstract: A system and method for monitoring a telephone switching environment. In a preferred embodiment the system and method construct a call record for each telephone call; receive data regarding telephony events; match a received telephony event with a call record; update the matching call record based on the received telephony event data;  and combine the updated call record with data indicating the location of recorded audio data for the segment of the call, to generate a master call record representing the lifetime of the telephone call. Additionally, the system and method are capable of assembling and playing back segments of telephone calls using the recorder locations described in the master call record for each telephone call, and of using the master call record to display a graphical representation of the telephone call.
Patent CA-2377874-A1 (CA)
Title: Methods for restoring or enhancing t-cell immune surveillance following naturally or artifically induced immunosuppression
Inventor: BERENSON RONALD
IPC: A61K35/12
Filed: 2001-05-24
Abstract: The present invention relates generally to methods for restoring or enhancing T-cell immune surveillance, and more particularly, to a method treating an immuno-compromised, immuno-deficient, or immuno-suppressed animal by infusion of peripheral blood lymphocytes, T-cells, or activated T-cells.
Patent CA-2378122-A1 (CA)
Inventor: PATEL NATU R
IPC: C09K15/20
Filed: 2000-07-06
Abstract: Vapor-phase vinyl polymerization fouling in monomer systems is inhibited by the use of an effective amount of an antipolymerant selected from stable fre e radicals, volatile alkylamines, or both. The preferred nitroxide is 3,6- dihydro-2,2,6,6-tetramethyl-1(2H)-pyridinyloxy, and the preferred alkylamine s are primary and secondary amines of methyl, ethyl, and propyl alkyls.</SDOAB >
Patent CA-2380584-A1 (CA)
Title: Method of measuring inflation for the consumer price index
Inventor: TWARDOWSKI PETER
IPC: G06Q40/00
Filed: 2002-04-05
Abstract: A method of measuring a more accurate rate of inflation is provided. The method consists of first creating a necessities index by selecting a plurality of household expenditures whose price changes are to be measured over the time period. The plurality of household expenditures must include only those expenditures which are subject to time constraints. The necessity index will be restricted to household expenditures for food, transportation, shelter, clothing, footwear and hygiene products. The rate of inflation can thin be derived by measuring the rate of inflation of the necessities index. The method can be rendered more accurate by excluding from the necessities index any expenditure which is of a luxurious nature. The method can be further refined by including into the necessities index household expenditures which are made by a great majority (approximately 95%) of households.
Patent CA-2383730-A1 (CA)
Title: Keyboard unit
Inventor: SUZUKI TOSHIHARU
IPC: G06F1/16
Filed: 2002-04-26
Abstract: To provide a keyboard unit keeping portability and improving facility of operation. The invention is a keyboard unit connected to an information terminal and has plural keys for performing character input to the information terminal, and the keyboard unit integrates with the information terminal at the state that at least lower side area than a display screen of the information terminal is packed in.
Patent CA-2384399-A1 (CA)
Title: Method for brightening mechanical pulps
Inventor: HACHE MAURICE JOSEPH ALBERT
IPC: D21C9/10
Filed: 2002-05-01
Abstract: The present invention is directed to an improved method for brightening mechanical pulp under neutral or alkaline papermaking conditions. The improvement comprises the steps of: (a) separating neutral or alkaline pulp dilution water into a high-solids stream and a neutral or alkaline low-solids stream; and (b) reusing the neutral or alkaline low-solids stream for pulp dilution purposes prior to a bleaching process.
Patent CA-2384822-A1 (CA)
Title: System and method for tomographic imaging of dynamic properties of a scattering medium
Inventor: BARBOUR RANDALL L
IPC: A61B10/00
Filed: 2000-09-14
Abstract: A system and method for the detection and three dimensional imaging of absorption and scattering properties of a medium such as human tissue is described. According to one embodiment of the invention, the system directs optical energy toward a turbid medium from at least one source and detects optical energy emerging from the turbid medium at a plurality of locations uisng at least one detector (106). The optical energy emerging from the medium (102) and entering the detector (106) originates from the source (101) is scattered by the medium (102). The system then generates an image representing interior structure of the turbid medium based on the detected optical energy emerging from the medium (102). Generating the image includes a time-series analysis.
Patent CA-2385347-A1 (CA)
Inventor: VEZINA LOUIS-PHILIPPE
IPC: C12N9/06
Filed: 2000-10-02
Abstract: L'invention concerne un procédé de régulation de la transcription d'un transgène dans des organismes génétiquement modifiés. L'invention concerne plus particulièrement l'utilisation de vecteurs d'expression hébergeant la séquence de codage d'un gène d'intérêt sous le contrôle transcriptionnel de séquences promotrices dont l'activité est régulée par la présence d'azote.
Patent CA-2385373-A1 (CA)
Inventor: KINNAIRD ROBERT J
IPC: B65D21/08
Filed: 2002-05-07
Abstract: A storage apparatus for musical reeds comprises a container comprising a reed chamber adapted for holding a reed, and a humidity controlling chamber arranged such that air is exchanged substantially freely between the reed chamber and the humidity controlling chamber. A humidity controlling mixture, comprising a salt, a superabsorber, and water, is contained within the humidity controlling chamber. The amount of water is such that a portion of the salt remains undissolved, and such that water saturated with the salt is absorbed by the superabsorber. The apparatus can be adapted to attach to an instrument so that the reed can be stored in a humidity controlled environment while in its playing position on the instrument.
Patent CA-2386612-A1 (CA)
Inventor: LYAPIN ANDREI GRIGORIEVICH
IPC: C10G32/02
Filed: 2000-09-25
Abstract: The invention relates to chemistry and in particular to technology for processing hydrocarbon fuel, including engine fuel. The invention makes it possible to obtain a fuel with high cetane and octane numbers by means of the following: the initial fuel supply occurs simultaneously with ejection; an ozone containing gas is fed into the ejection area; turbulent flows are created by displacement of such a mixture; the transformed mixture is directed into a volume with a stable pressure level; and thermodynamic equalization of the mixture parameters is achieved. During thermodynamic equalization, sprayed water is injected into said mixture. The inventive process is implemented by means of devices provided with an ejector, whereby said ejector has a suction pipe connected to an ozone generator, an input connected to initial fuel supply source and an output connected to an apparatus for the enrichment and transformation of fuel, whereby said apparatus comprises serially connected flow-through cylindrical chambers, between which an electrohydrodynamic flow converter is located, and one or two chambers for thermodynamic equalization.  In such a case, the device is provided with a spray water supply source and with an electrohydrodynamic separator.
Patent CA-2386743-A1 (CA)
Title: A method for playing a board game
Inventor: ORR JOAN
IPC: A63F9/00
Filed: 2002-05-27
Abstract: The invention is a means of playing an educational board game. Topics for children to which this means of play can be applied include safety around dogs, street-proofing, accident prevention, manners and dog obedience training. The game comprises a game board and playing markers, a numbered spinning device to define movement around the board and sets of instructional cards. By way of messages on the game board, activities described on the various instructional cards and various means of reward and penalty set out in the rules, several learning and teaching strategies are employed so that players are amused and learning concurrently. These strategies include modelling, conditioning, positive and negative reinforcement, response to verbal and visual cues, and physical activity. Individual and group activities occur throughout the period of play.  Criteria for success in some of the activities are graded to provide greater challenge for older children and adults.
Patent CA-2387493-A1 (CA)
Inventor: THOMPSON LORIN ANDREW
IPC: A61P25/28
Filed: 2000-10-07
Abstract: La présente invention concerne de nouveaux lactames représentés par la formule (I), leurs compositions pharmaceutiques et leurs procédés d'utilisation. Ces nouveaux composés empêchent la transformation de la protéine précurseur amyloïde et, plus spécifiquement empêchent la production de peptide A.beta., ayant ainsi une action préventive sur la formation des dépôts neurologiques de protéine amyloïde. Cette invention se rapporte plus particulièrement au traitement des troubles neurologiques associés à la production d'amyloïde .beta., tels que la maladie d'Alzheimer et le syndrome de Down.
Patent CA-2390734-A1 (CA)
Title: Network controller for managing the supply and distribution of electrical power
Inventor: WEDEL FRANK
IPC: H02J3/38
Filed: 2002-06-13
Abstract: A network controller and method is provided for managing the supply and distribution of electrical power. The network controller includes a plurality of power generation systems which are connected to a power network for communication thereon. Each power generation system includes at least one power generation unit connected to a corresponding sub-network. A user interface is connected to the power network for communicating with the first and second power generation systems. The network user interface allows a network user to set values for various predetermined operating parameters of the power generation units of the first and second power generation systems.
Patent CA-2391323-A1 (CA)
Title: A device with improved fitment system
Inventor: CROZET YVON
IPC: B05B15/00
Filed: 2000-07-28
Abstract: The present invention is directed to a device for the delivery of products, preferably cleaning products comprising an active ingredient, more preferably cleaning products comprising a surfactant, the device comprising at least one vented reservoir for containing at least one liquid product and a means for dispensing the product from the reservoir, the device being characterized in that the reservoir (10) comprises at least one recess (16) and/or protrusion and the dispensing means comprises at least one corresponding protrusion (17) and/or recess, said reservoir being releasably secured in a leak-tight manner with the dispensing means such that fluid communication between said reservoir and said means is established, only when said protrusion(s) and recess(es) are fitted into each other, and said protrusion(s) and said recess(es) of said reservoir have a shape which is complementary, preferably exactly complementary, to said protrusion(s) and/or recess(es) of said dispensing means.
Patent CA-2394004-A1 (CA)
Inventor: XIE PING
IPC: G02B6/28
Filed: 2000-12-05
Abstract: L'invention concerne des dispositifs à fibres optiques comprenant des combinaisons intégrées coupleurs optiques-isolateurs optiques. Ces combinaisons sont utilisées, en particulier, pour les configurations de branchement et de pompage optique. L'intégration de tels dispositifs dans un sous-ensemble enclavé permet l'obtention de caractéristiques de taille et de conception améliorées.
Patent CA-2396745-A1 (CA)
Inventor: YAMAGUCHI YOSHIHIRO
IPC: C07C50/02
Filed: 1995-09-07
Abstract: Disclosed is an inhibiting or blocking agent of molecular generating and/or inducing functions represented by formula 1-a:   (See formula I) wherein, among other possible groups, R1, R2, R3, R4, R5 and R6 represent independently hydrogen atom; halogen atom;      C1-C6 alkyl group; amidino group: C3-C8 cycloalkyl group;      C1-C6 alkoxy C1-C6 alkyl group; aryl group; allyl group; aralkyl group in which one or more C1-C6 alkyl groups are bound to an aromatic ring selected from the group consisting of benzene, naphthalene and anthracene ring;      C1-C6 alkylene group; benzoyl group; cinnamyl group; cinnamoyl group or furoyl group.
Patent CA-2399821-A1 (CA)
Inventor: JORGENSEN KENT
IPC: A61P15/00
Filed: 2001-02-09
Abstract: The present invention relates to a lipid-based drug delivery system for administration of a lysolipid derivative present in prodrug form, said prodr ug furthermore being a substrate for extracellular phospholipase A2 to the exte nt that an organic radical can be hydrolytically cleaved off, whereas the aliphatic group of the lysolipid derivative remains substantially unaffected , said system having included therein lipopolymers or glycolipids so as to present hydrophilic chains on the surface of the system. Particularly interesting lipid derivatives are ether lipids and ether lipids in which dru g substance is covalently attached in the sn-2-position. Pharmaceutical compositions comprising the drug delivery system can be used in the targeted  treatment of various disorders, e.g. cancer, infectious, and inflammatory conditions, etc., i.e. disorders and diseases associated with or resulting from increased levels of extracellular PLA2 activity in the diseased tissue.
Patent CA-2402364-A1 (CA)
Title: Process for producing camptothecin
Inventor: SAWADA SEIGO
IPC: C07D491/22
Filed: 2001-03-21
Abstract: Problem: A large scale production of camptothecin, which is a starting compound of irinotecan hydrochloride and various camptothecin derivatives, at a low cost and with ease.     Solution: A process for preparing camptothecin, characterized in that it comprises the following steps (a) and (b);   (a) the step to hydrolyze 9-methoxycamptothecin or a natural material containing 9-methoxycamptothecin;   (b) the step to convert 9-hydroxycamptothecin obtained in the step (a) into camptothecin by 9-O-perfluoro-lower-alkylsulfonylation or 9-O-phenyltetrazolylation, followed by hydrogenolysis.
Patent CA-2410583-A1 (CA)
Title: A system to deliver encrypted access control information
Inventor: DICOLLI RICHARD
IPC: H04N21/2347
Filed: 2001-05-16
Abstract: A system for streaming encrypted conditional access (CA) data, such as contr ol words, from a primary or master conditional access provider (CAP) (110) to o ne or more secondary CAPs (115, 120). The primary CAP (110) encrypts content (program data) that is to be access-controlled, such as a television program , according to the associated CA data. A first group of user terminals is compatible with the CA data of the primary CAP (110). The CA data is then provided to the secondary CAPs (115, 120) to provide corresponding CA data f or the content in the secondary CAPs' associated formats for compatibility with  other groups of terminals.
Patent CA-2411535-A1 (CA)
Title: Epaisseur de gaine optimisee pour moteurs de forage a deplacement positif
Inventor: PLOP ANDREI
IPC: F03C2/08
Filed: 2002-11-07
Abstract: Stator pour moteur volumétrique, incluant un tube externe. Le tube externe inclut une surface externe et une surface interne, et la surface interne inclut au moins deux lobes en saillie radialement vers l'intérieur s'étendant de manière hélicoïdale suivant une longueur du tube externe. Un revêtement est positionné adjacent à la surface interne, et le revêtement épouse les lobes en saillie radialement vers l'intérieur formés sur la surface interne et la forme hélicoïdale de la surface interne. Une épaisseur du revêtement est maximale au niveau des au moins deux lobes en saillie radialement vers l'intérieur.
Patent CA-2411874-A1 (CA)
Inventor: VASSILATOS GEORGE
IPC: D01F6/62
Filed: 2001-07-09
Abstract: A method of making polymeric, e.g., polyester, filaments having low denier spread by use of a polymer of high viscosity is described. The filaments are  useful to make yarns and other articles.
Patent CA-2412324-A1 (CA)
Title: Coupling
Inventor: HAWORTH BRIAN DAVID
IPC: F16L37/35
Filed: 2000-05-26
Abstract: The invention pertains to a coupling for a liquid product packaging and dispensing assembly in which liquid is pumped from a container via the coupling through a tube to the point of use. The coupling comprises a first interconnectable member with a hollow post and a biased sleeve closing openings in the hollow post and a second interconnectable member with a hollow sheath and a biased piston closing an opening at the end of the sheath. The parts are configured so that, upon connection, the post unseats the piston while the sheath displaces the sleeve, thereby allowing liquid flow. An elastic ring is present between the sheath and the sleeve which ring is compressed in the axial direction and expanded in the radial direction towards the post so as to establish a close fit around the post.
Patent CA-2416035-A1 (CA)
Inventor: WATANABE TADAHARU
IPC: B01J20/08
Filed: 2001-10-17
Abstract: L'invention concerne un procédé efficace qui permet d'évacuer des impuretés à l'état de traces d'une matrice d'hydrure, de gaz inertes et de gaz non réactifs, ce qui réduit la teneur en gaz à l'état de traces d'un facteur de 100 à 10 000 et, plus précisément, à des niveaux de parties par milliard (ppM) ou de parties par trillion (ppt). Les gaz d'hydrure tels que l'ammonium, la phophine et l'arsine, et les gaz inertes tels que l'azote, l'hélium, l'hydrogène et l'argon sont purifiés par évacuation de contaminants à l'état de trace tels que silane (SiH¿4?), hydrogène sulfuré (H¿2?S) et germane (GeH¿4?) ainsi que de traces d'humidité. Les matériaux purificateurs de gaz, selon l'invention, comprennent des alumines thermiquement activées provenant de sources organiques, des matériaux d'alumines organiques modifiées thermiquement activées et des alumines modifiées thermiquement activées provenant d'une source inorganique. ON active les matériaux d'alumines thermiquement activées en chauffant le matériau d'alumine à une température située entre 200 et 1000 ·C dans une atmosphère inerte et en maintenant le matériau activé dans une atmosphère inerte.