baber/WOPTO huggingface dataset:
Patent CA-2137348-C (CA)
Inventor: MCLEAN LARRY R
IPC: C07K5/103
Filed: 1993-06-30
Granted: 2000-11-28
Abstract: Tensioactifs pulmonaires synthétiques à propriétés antioxydantes, qui sont constitués d'un complexe d'un polypeptide de restes d'acides amines 3-4, avec une fraction d'antioxydant, et d'un lipide constitué d'un ou plusieurs des lipides associés au tensioactif pulmonaire naturel. Lesdits tensioactifs sont utiles pour traiter le syndrome de la détresse respiratoire.
Patent CA-2148279-C (CA)
Title: Wire-free telecommunications system, preferably a cordless telecommunications system
Inventor: PILLEKAMP KLAUS-DIETER
IPC: H04M1/72
Filed: 1993-11-02
Granted: 1999-07-06
Abstract: In order to reduce mutual interference (STB) between a plurality of (for example two) asynchronous telecommunications subsystems (AS-TKTS1, AS-TKTS2) of a wire-free telecommunications system (TKS), only every other time slot (ZS) is selected, from a number of predetermined time slots (ZS), for the radio links.
Patent CA-2148418-C (CA)
Title: Protection circuit and method for telecommunication equipment
Inventor: STORBECK CARSTEN
IPC: H04M3/18
Filed: 1995-05-02
Granted: 2003-03-18
Abstract: The present invention relates to a device and method having particular application to protection of telecommunication installations against overvoltage and overcurrent. The method and device (preferably a circuit) utilize overvoltage suppressors, positive-temperature-coefficient (PTC) resistors, and voltage-limiting components. The object of the invention is to develop a method and a circuit for surge-current-resistant, reversible line protection. This is achieved by utilizing an overvoltage suppressor with a response voltage above the peak value of a power supply voltage, a thyristor diode with a voltage response slightly above the maximum operating voltage values of the line being protected, and a PTC resistor, connected between the overvoltage suppressor and the diode, that is used as a decoupling member to block the maximum amplitudes of the power supply voltage, obviating the need for a dedicated fail-safe device.
Patent CA-2156875-C (CA)
Title: System for automatically completing calls to mobile telephone subscribers
Inventor: AZER MIKHAIL SABIT
IPC: H04B7/185
Filed: 1995-08-24
Granted: 1998-09-01
Abstract: A system and method which can complete a call to a specific Inmarsat subscriber ship. When a call arrives at a gateway switch, a test is made to determine if the called ship is in the gateway's local database. If it is, then a current region code is retrieved from the database and substituted for the dialed code for callprocessing.  A call is then placed to the ship.  If the call can be completed, the call is processed normally. If the call cannot be completed because the ship cannot be located in the selected region, then the call is automatically retried to each of the other regions, in a predetermined order. The local database in the gateway switch will be updated whenever a call is completed whether the call was originated or terminated at the mobile terminal.
Patent CA-2158045-C (CA)
Inventor: PALMATEER DONALD W JR
IPC: B23F9/10
Filed: 1994-02-22
Granted: 1996-11-26
Abstract: Disclosed herein is a process for feeding a tool (2) relative to a workpiece (12) in a machining process such as a process for forming level and hypoid gears. The method comprises feeding the tool (2) from an initial contact position (12i) with the workpiece to a full depth position (12f) in the workpiece along a feedpath at least a portion of which is defined by a feed vector (F) having at least two feed vector components lying in an axial plane. The first feed vector component (G') being substantially in the direction of the axis (G) of a theoretical generating gear and the second feed vector component (H) being substantially in a direction perpendicular to the generating gear axis (G). The feed vector (F) may include a third feed vector component (N') lying in a normal plane. With this feedpath undesirable tool shifting and workpiece spiral angle changes are significantly reduced.
Patent CA-2159823-C (CA)
Inventor: PERRUT MICHEL
IPC: C11B7/00
Filed: 1994-04-29
Granted: 2004-08-31
Abstract: There is provided a process for recovering purified polyunsaturated fatty acids or derivatives thereof from mixtures containing such fatty acids and unwanted substances in which the feed is subjected to a preliminary treatment using either stationary bed chromatography, die eluent possibly being a fluid at supercritical pressure, or multistage countercurrent column fractionation in which the solvent is a fluid at supercritical pressure; and then one or more fractions containing enhanced concentrations of the fatty acids of interest recovered from the preliminary treatment are subjected to further fractionation using simulated continuous countercurrent moving bed chromatography, the eluent again possibly being a fluid at supercritical pressure, in which case the preliminary treatment may be omitted altogether.
Patent CA-2160467-C (CA)
Title: Telecommunications system
Inventor: MAXWELL DEBORAH CLAIRE
IPC: H04Q3/62
Filed: 1993-04-15
Granted: 1999-10-05
Abstract: A telecommunications system comprises a public network and one or mole private networks each comprising a plurality of private exchanges (PBX's) (14) coupled to the public network. Signal mapping from PBX to public format and inverse mapping from public to PBX format provides transparent signalling of PBX calls across the public network. This avoids the use of dedicated private lines from the private network.
Patent CA-2164090-C (CA)
Inventor: BUISMAN CEES JAN NICO
IPC: C02F101/10
Filed: 1994-06-09
Granted: 2000-03-28
Abstract: A process is described for purifying waste water containing sulphide, comprising oxidising the sulphide to elemental sulphur in a reactor with sulphide-oxidising bacteria in the presence of oxygen, and separating from the waste water at least a part of the sulphur formed during the oxidation, while recycling a part of the elemental sulphur separated from the reactor effluent into the reactor in such a way that a concentration of elemental sulphur of at least 1 g/l is maintained in the reactor. The sulphur, in the form of aggregates, is used as a carrier material for the sulphide-oxidising bacteria.
Patent CA-2173091-C (CA)
Inventor: WASHIZAWA TERUYOSHI
IPC: H04N5/232
Filed: 1996-03-29
Granted: 2000-06-13
Abstract: A visual information processing method in a visual information processing apparatus for acquiring and processing visual information includes the steps of successively changing the amount of visual information entered with regard to a desired target position in space, reading image data at each position at which an image is formed and storing the image data in correspondence with the target position in space.  The amount of visual information is successively changed by changing the image-forming position corresponding to the target position in space by moving of the optic axis of a wide-angle lens.  The visual information is successively altered by zooming or by filtering which relies upon a two-dimensional filter.  There are a plurality of target positions in space, visual information at each image-forming position is read out in correspondence with each target position in space, and the information is stored in correspondence with each target position in space.  The stored image is displayed at a high resolution without distortion.
Patent CA-2180205-C (CA)
Title: Triazinyl or pyrimidinyl group-containing amino-silicones
Inventor: OHNO HIROYUKI
IPC: A61Q1/00
Filed: 1996-06-28
Granted: 2008-08-05
Abstract: Disclosed are amino silicone derivatives having triazinyl groups or pyrimidinyl groups bound to amino groups of amino silicones, a representative example being given by the formula:      wherein R is H or hydrocarbon; m and n are 1-6; h is 0-6; "a" is 1-400; at least two of Y are N and the other is C; p is 1-3 or 1-4; and the triazinyl or pyrimidinyl group may be substituted. The silicone derivatives are able to gel a silicone oil or to increase the viscosity thereof stably and homogeneously, and therefore are useful as a base for cosmetics, pharmaceutical preparations and industrial materials.
Patent CA-2181569-C (CA)
Title: Agonistes de recepteur ep2 utilises comme agents faisant baisser la tension intraoculaire
Inventor: WOODWARD DAVID F
IPC: C07D213/30
Filed: 1995-01-09
Granted: 2005-12-20
Abstract: Cette invention concerne du (~) trans-2-[-4(1-hydroxyhexyl) phényl]-5-acide oxocyclopentaneheptanoïque et l'ester et les dérivés non saturés de ce dernier, et des dérivés de prostaglandine. Plus spécifiquement il s'agit de composés de formule (I). Dans cette formule les liaisons ondulées indiquent la configuration .alpha. ou .beta., la liaison en pointillés représente une liaison simple ou double, cette liaison double pouvant être une liaison double cis ou trans et R représente un groupe hydrocarbure acyclique saturé ou non saturé comprenant entre 1 et environ 20 atomes de carbone, ou -(CH¿2?)¿m?R¿1? dans lequel m est compris entre 0 et 10, et R¿1? représente un cycle aliphatique comprenant entre environ 3 et environ 7 atomes de carbone, ou un cycle aryle ou hétéroaryle comprenant entre environ 4 et environ 10 atomes de carbone dans lequel l'hétéroatome est sélectionné dans le groupe formé par N, O et S. Les composés de cette invention sont de puissants hypotenseurs oculaires et sont particulièrement adaptés pour traiter le glaucome.
Patent CA-2183220-C (CA)
Inventor: WEIR THOMAS W
IPC: C23F11/16
Filed: 1996-08-13
Granted: 2001-06-12
Abstract: The preparation of propylene glycol compositions containing alkali metal silicates having improved gel resistance is provided by forming a silicate premix having effective amounts of inorganic base compound(s) and water.  The silicate premix is then added to the propylene glycol.
Patent CA-2190528-C (CA)
Inventor: THOMSON JAMES A
IPC: C12N5/0735
Filed: 1996-01-19
Granted: 2010-04-27
Abstract: A purified preparation of primate embryonic stem cells is disclosed. This preparation is characterized by the following cell surface markers: SSEA-1 (-); SSEA-3 (+); SSEA-4 (+); TRA-1-60 (+); TRA-1-81 (+); and alkaline phosphatase (+). In a paricularly advantageous embodiment, the cells of the preparation have normal karyotypes and continue to proliferate in an undifferentiated state after continuous culture for eleven months. The embryonic stem cell lines also retain the ability, throughout the culture, to form trophoblast and to differentiate into all tissues derived from all three embryonic germ layers (endoderm, mesoderm and ectoderm). A method for isolating a primate embryonic stem cell line is also disclosed.
Patent CA-2195550-C (CA)
Title: Manche pour plusieurs outils de taille differente
Inventor: JOHNSON KENNETH R
IPC: B25G1/10
Filed: 1995-07-26
Granted: 2001-02-13
Abstract: Un manche à outils (1) de forme généralement cylindrique maintient des outils (3) de différentes tailles. Ce manche (1) comporte une ou plusieurs fentes de maintien (4), disposées chacune sur l'une des multiples faces du manche et dans lesquelles les outils (3) hexagonaux sont insérés et maintenus. Dans la forme de réalisation préférée du manche (1), trois des faces possèdent une seule fente de maintien (4) avec plusieurs trous de réception (5) destinés à maintenir des clés à six pans (3) de différentes tailles. Un verrou (2) est disposé par-dessus la partie courte de la clé à six pans (3) et la fente de maintien (4) pour maintenir la clé (3) en position pendant l'utilisation. Un porte-outils multiple (80) est conçu pour coulisser sur le manche (1) selon la présente invention et maintenir des outils de différentes tailles (59-69) qui peuvent être utilisés avec le manche (1). Le porte-outils (80) comprend un aimant de montage (81) destiné au montage du manche (1) et du porte-outils (80) sur une surface magnétique.
Patent CA-2196354-C (CA)
Title: Air boiling cryogenic rectification system with staged feed air condensation
Inventor: BONAQUIST DANTE PATRICK
IPC: F25J3/04
Filed: 1997-01-30
Granted: 2000-01-25
Abstract: An air boiling dual column cryogenic rectification system for producing lower purity oxygen wherein a portion of the feed air is used to reboil the lower pressure column and then is partially condensed in a vertically oriented stage within the lower pressure column before undergoing rectification.
Patent CA-2196381-C (CA)
Inventor: OKUI TOSHIHARU
IPC: F17C11/00
Filed: 1997-01-30
Granted: 1999-09-28
Abstract: A method of storing and transporting gas wherein a large amount of gas is stored and transported by bringing the gas into contact with a porous material having fine pores and a large specific surface area in the presence of a compound serving as host at or close to room temperature. The method according to the invention enables the gas in an amount equivalent to more than 180 times as much as an unit volume of the porous material to be stored or transported in a short time even under low pressure, for example, the atmospheric pressure or up to 10.68 atm (equivalent to 10 kg / cm2 by gauge pressure) or less, and furthermore, is applicable to various kinds of gases.
Patent CA-2200519-C (CA)
Inventor: KUZE TETSUYA
IPC: B60C11/04
Filed: 1997-03-20
Granted: 2001-12-11
Abstract: A pneumatic radial tire has a tread pattern having a pair of straight main grooves each having a width equal to 8-13 percent of a ground contact width W of the tire and extending in parallel on opposite sides of an equator of the tire, a plurality of lug grooves extending across shoulder regions formed on the outersides of the pair of main grooves from the pair of main grooves outwardly toward the ends of the ground contact surface of the tire to form in cooperation with the main grooves successive rows of blocks, and a plurality of V-shaped sub-grooves in the shoulder regions spaced at a predetermined pitch apart in the circumferential direction of the tire and extending divergently with respect to the direction of reverse rotation of the tire, wherein the ratio of a distance W1 between respective centers of the main grooves to the ground contact width W is in the range of 0.2 ~ W1/W ~ 0.4; an angle a of inclination of the lug grooves with respect to the circumferential direction of the tire as viewed from the reverse tire rotating direction is in the range of 90°-130°; and an angle a defined by the V-shaped sub-grooves is in the range of 15 °-35 °.
Patent CA-2206529-C (CA)
Inventor: VENKAT CHAYA RAO
IPC: C07C15/073
Filed: 1995-12-04
Granted: 2006-09-19
Abstract: L'invention concerne un processus destiné à la préparation d'éthylbenzène par alkylation en phase liquide et transalkylation en phase vapeur. La réaction d'alkylation en phase liquide peut être catalysée par un oxyde solide acide, tel que le MCM-22, le MCM-49, le MCM-56. La réaction de transalkylation en phase vapeur peut être catalysée par du zéolite de dimension de pores moyenne tel que le ZSM-5. On peut exécuter ce processus en continu en ajoutant de manière continuelle un apport de benzène frais contenant au minimum 500 mg/l d'impuretés d'hydrocarbures non benzéniques. Le produit combiné d'éthylbenzène obtenu par ces réactions d'alkylation et de transalkylation possède très peu d'impuretés, constituées de xylène, d'hydrocarbures à 7 atomes de carbone ou moins et d'hydrocarbures à 9 atomes de carbone ou moins.
Patent CA-2207273-C (CA)
Inventor: WEI RONGHUA R
IPC: C04B35/64
Filed: 1996-10-10
Granted: 2000-04-18
Abstract: A plasma heating apparatus (20) for heating a workpiece (26) includes a chamber (22) of sufficient size to receive a workpiece (26) therein and a source of a reduced gas pressure within the chamber (22) of from about 0.01 to about 100 millitorr. The plasma heating apparatus (20) further includes a plasma source (40) of an enveloping plasma. Optionally, a workpiece voltage may be applied between the workpiece (26) and the wall (24) of the chamber (22), a source (34) of a reactive gas can be provided to backfill the chamber (22), and radiant heaters (25) can be provided to independently heat portions of the workpiece (26). In operation, the plasma source (40) produces a plasma that surrounds and heats the workpiece (26). The plasma and the heating of the workpiece (26) are tailored to achieve controllably uniform or nonuniform heat treatment and/or surface treatment of the workpiece (26). The apparatus (20) can be used to heat treat the workpiece (26) in vacuum, or a reactive gas such as a gaseous source of nitrogen, carbon, or boron can be backfilled into the chamber (22) to alter the surface chemistry of the workpiece (26).
Patent CA-2207674-C (CA)
Title: Moisture containing compositions that are spreadable onto and adherable to biomembranes, methods of making and use thereof
Inventor: SCHIRALDI MICHAEL T
IPC: A61K47/32
Filed: 1997-06-12
Granted: 2007-07-31
Abstract: This invention relates to compositions that are easily spreadable onto and adhesive to biomembranes. They contain and provide moisture to the biomembranes and do not readily flow off, i.e., leak from, the biomembranes. Nor are they readily removed or washed from the biomembranes. Compositions that adhere to and are compatible with, in that they spread, and do not flow off and are not readily removed or washed from the biomembranes are deemed to be bioadhesive. Such compositions are particularly useful for maintaining biomembranes in a moist condition, for lubricating the biomembranes, and for providing a vehicle for containing and delivering medicaments, such as contraceptives, antifungals and antibacterials. The invention further relates to methods for making and methods of use of such compositions. The compositions of this invention are particularly useful for maintaining biomembranes in a moist condition, especially those that are susceptible to dryness, for lubricating the biomembranes and for providing a vehicle for containing and delivering medicaments, such as contraceptives, antifungals and antibacterials.
Patent CA-2208684-C (CA)
Inventor: PETTERSSON AXEL BORJE
IPC: B23Q11/00
Filed: 1995-12-27
Granted: 2005-06-28
Abstract: Method for cutting preferably metal reinforced hoses, metal pipes or similar, and a device for utilization of the method, the cutting operation being performed in a known way using a cutting tool, such as a motor driven cutting disc or similar. As an initial step, a means (1) is located surrounded by the tubeshaped member (2) to be cut with a central position in relation to the point where cutting is intended to be performed, said means (1) being arranged to take up intimate contact with the internal surface of the tubeshaped member (2) by at least two from each other separated areas (4, 4') at each side of the cutting point. Cutting is thereafter performed through the tubeshaped member (2) as well as the surrounded means (1), and the from each other separated parts of the surrounded means (1) are as a final step pulled out from the tubeshaped member (2) in direction towards the end portions formed by the cutting operation.
Patent CA-2208762-C (CA)
Inventor: WRIGHT JOHN
IPC: H01L29/786
Filed: 1995-01-19
Granted: 2003-03-18
Abstract: L'invention concerne une nouvelle structure de transistor à couche mince permettant de réduire au minimum les capacitances parasites des électrodes à la fois de drain et de source. Dans une première forme d'exécution, un transistor à couche mince à triple grille est doté d'une structure de grille ouverte dans laquelle les électrodes de source et de drain ne chevauchent pas l'électrode de grille supérieure. Deux électrodes de grille inférieures sont alignées avec respectivement un premier espacement entre la grille et la source et un second espacement entre la grille et le drain. Selon une seconde forme d'exécution de l'invention, un commutateur à transistor à couche mince à transfert complet est doté d'une source, d'un drain et d'une grille inférieure avec une couche semi-conductrice intermédiaire, ainsi qu'une grille supérieure partielle chevauchant une partie du drain et une partie de la couche semi-conductrice, pour créer une répartition de la densité des charges sensiblement triangulaire dans la couche semi-conductrice, et déplacer les électrons du canal vers l'électrode de source.
Patent CA-2214501-C (CA)
Inventor: WATANABE MINEO
IPC: C07B63/00
Filed: 1997-01-22
Granted: 2000-11-07
Abstract: A process for removing bisfluoromethyl ether contained in fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether simply, easily and efficiently, which comprises bringing fluoromethyl 1,1,1,3,3,3-hexafluoromethyl ether containing bisfluoromethyl ether into contact with zeolite.
Patent CA-2224605-C (CA)
Title: Synchronisation in digital communications networks
Inventor: QUAYLE JOHN ALAN
IPC: H04L7/00
Filed: 1996-06-27
Granted: 2002-10-22
Abstract: In a digital communications network comprising a branched passive optical network (11, 13) connecting a head-end (15) with a plurality of optical network units (15), the time taken to synchronise, by ranging, all optical network units (15) and the head-end (10), when the network needs to be initialised from scratch, is minimised. This is achieved by making all bandwidth in the upstream direction of the network (14) available for the purpose of course ranging. Once the whole network is ranged, then bandwidth is made available, in the normal way, to combined data communications and operations and management functions.
Patent CA-2226894-C (CA)
Inventor: VARASI MARIO
IPC: A61P25/16
Filed: 1996-07-05
Granted: 2009-03-31
Abstract: Novel 2-(4-substituted)-benzylamino-2-methyl-propanamides compounds, having CNS activity, of general formula (I) wherein: n is zero, 1, 2 or 3; X is -O-, -S-, -CH2- or -NH-; each of R and R1 independently is hydrogen, C1-C6 alkyl, halogen, hydroxy, C1-C4 alkoxy or trifluoromethyl; each of R2, R3 and R4 independently is hydrogen, C1-C6 alkyl or C3-C7 cycloalkyl; and the pharmaceutically acceptable salts thereof, are disclosed.
Patent CA-2227491-C (CA)
Title: In situ preparation of nucleoside phosphoramidites and oligonucleotide synthesis
Inventor: TANG JIN-YAN
IPC: C07H21/00
Filed: 1996-10-04
Granted: 2005-05-24
Abstract: The invention provides novel bifunctional phosphitylating reagents and their application in in situ preparation of 5'-protected nucleoside phosphoramidites and synthesis of oligonucleotides. Bifunctional phosphitylating reagents according to the invention react quickly with nucleosides under neutral or weakly basic conditions, without an additional activation step. In addition, the bifunctional phosphitylating reagents according to the invention generate chemoselectively the corresponding nucleoside phosphoramidites in situ, without need to purify the nucleoside phosphoramidites before using them in oligonucleotide synthesis. Finally, the bifunctional phosphitylating reagents according to the invention are relatively stable and easy to handle.
Patent CA-2227654-C (CA)
Inventor: DU GEORGE W
IPC: A61F2/90
Filed: 1998-01-21
Granted: 2002-12-10
Abstract: A stent graft (18,90,92,104,112,124,128) for transluminal implantation includes a resilient tubular interbraided latticework (34,106,116,130) of metal or polymeric monofilaments, a tubular interbraided sleeve (40,108) of polymeric multifilament yarns, and an adhesive layer (44) between the sleeve (40,108) and latticework (34,106,116,130) for bonding them together including processes for fabricating the stent graft (18,90,92,104,112,124,128).