baber/WOPTO huggingface dataset:
Patent CA-2289675-A1 (CA)
Title: 20-aralkyl-5.alpha.-pregnane derivatives
Inventor: LEEMHUIS JOHANNES ANTONIUS JOS
IPC: A61K31/575
Filed: 1998-05-11
Abstract: The invention relates to 20-aralkyl-5.alpha.-pregnane derivative having general formula (I), or a pharmaceutically acceptable salt thereof, wherein R1 is (H,OR), (H,OSO3H) or NOR; R is H, (C1-6)alkyl or (C1-6)acyl; each of R2 and R3 is independently hydrogen or (C1-6)alkyl; X is a straight chain divalent C18 hydrocarbon radical, optionally comprising a double or a triple bond; or X is -(CH2)m-CR7R8-; m = 0-4; at least one of R7 and R8 is (C1-4)alkyl, hydroxy, (C1-4)alkoxy or halogen; the other, if present, being hydrogen; or R7 and R8 together represent O or NOR'; R' is H, (C1-6)alkyl or (C1-6)acyl; each of R4, R5 and R6 is independently hydrogen, hydroxy, (C1-4)alkoxy, halogen, NR9, R10 or (C1-4)alkyl, optionally substituted by hydroxy, alkoxy, halogen or oxo; each of R9 and R10 is independently hydrogen or (C1-4)alkyl; and the dotted lines indicate a .DELTA.7 or a .DELTA.8 double bond, or a pair of conjugated double bonds selected from .DELTA.7,14, .DELTA.8,14 and .DELTA.6,8(14). The compounds of the invention have meiosis activating activity and can be used for the control of fertility.
Patent CA-2290802-A1 (CA)
Title: Electronic power component with means of cooling
Inventor: SCHAEFFER CHRISTIAN
IPC: H01L23/473
Filed: 1999-11-24
Abstract: Power electronic component (28) comprises a first composite structure (19) for thermal transfer and electric insulation, comprising two conducting or semiconducting layers (18) onto which is mounted at least one power semiconducting circuit (20) with contacts (23) connected to an array of conducting elements insulated from each other, this array being integrated into a second composite structure (119) for thermal transfer and electric insulation made of at least one semiconductor layer (110). One of the first and second composite structures comprises internal passages (12,112) for heat exchanging fluid.
Patent CA-2292513-A1 (CA)
Title: Contact lens packing solutions and methods for improving the comfort of disposable contact lenses
Inventor: SALPEKAR ANIL
IPC: A61L12/08
Filed: 1998-06-05
Abstract: The present invention is directed to new and improved solutions for packaging contact lenses and to methods for treating contact lenses with such solutions to improve the comfort of the lenses during wear.  In particular, the present invention is directed to packing solutions comprising certain non-ionic surfactants containing a poly(oxyalkylene) copolymer and having a molecular weight of 4000 to 30,000. Such surfactants are retained on the surface of an unused lens for extended periods of time, resulting in surface modification that persists in the eye, thereby providing significant improvement in the wetting properties of fresh contact lenses used for the first time and, moreover, even several hours after lens insertion, preventing dryness and improving lubricity.
Patent CA-2296655-A1 (CA)
Title: Variable vane seal and washer materials
Inventor: BOWEN WAYNE RAY
IPC: F04D29/02
Filed: 2000-01-20
Abstract: A multi-layer seal and washer that provide a seal between a vane stem and a casing in a turbine engine are disclosed. The seal and washer are fabricated from materials such as Teflon fibers and glass fibers and are impregnated with a polyimide resin. The seal and washer are durable and have a low coefficient of friction.
Patent CA-2297339-A1 (CA)
Inventor: MARQUE-PUCHEU GERARD
IPC: H04L27/20
Filed: 2000-01-27
Abstract: The successive symbols of a digital stream are converted into phase increments which are accumulated. A modulating phase is obtained by filtering the accumulated phase. A complex signal is produced whose argument represents the modulating phase. Two quadrature radio waveforms are respectively modulated on the basis of that complex signal, and a radio signal resulting from a combination of the two modulated waveforms is transmitted. The real and imaginary components of the complex signal are converted into analog form, and are subjected to anti-aliasing analog filtering and then mixed with the two radio waveforms. Appropriate sizing of the digital filters provides efficient modulation with small envelope variations, causing little adjacent channel interference and a low error rate.
Patent CA-2298525-A1 (CA)
Inventor: PRUTCHI DAVID
IPC: H01L25/065
Filed: 1998-07-21
Abstract: A cardiac stimulator (10) having a memory device (50) particularly useful in size-constrained electronic products, such as cardiac stimulators. To provide additional memory for such size-constrained products, memory chips (50A, 50B, 50C, 50D) are stacked one on top of another. The memory chips are configured to facilitate bonding without crossed contacts, using aligned bonding pads, vias, or castellations. Each memory chip also includes an address selection circuit that receives signals from one or more address lines to selectively enable and disable the memory chips in the stack.
Patent CA-2300406-A1 (CA)
Title: Method and apparatus for automatic analysis
Inventor: MAXWELL IAN ANDREW
IPC: G01N35/00
Filed: 1998-08-13
Abstract: A method for estimating the concentration of a reduced (or oxidised) form of a redox species in a liquid comprises contacting an area of a first electrode (2) with a sample (5) of the liquid, contacting the sample (5) with a second electrode (2) spaced apart from the first (2), applying a potential between the electrodes while the electrodes are sufficiently closely spaced that reaction products formed at each electrode diffuse to the other electrode while the potential is applied, measuring or estimating a value indicative of the change in current as a function of time and a value indicative of the steady state current, and determining from said volume, said current as a function of time, and said steady state current the concentration of reduced (or oxidised) form of the species in the liquid sample.
Patent CA-2303808-A1 (CA)
Title: End module assembly for installation on a vehicle and method for making the same
Inventor: YUSTICK ROBERT F
IPC: B62D25/08
Filed: 1998-10-23
Abstract: The present invention relates to an end module assembly (10) for installation on a motor vehicle and a method for assembling the same. The assembly comprises an exterior fascia (18) configured to comprise a portion of a vehicle body when the assembly is installed on the vehicle. An external visible component (20, 22, 24, 26) is configured to be positioned in a predetermined orientation with respect to the fascia with surfaces thereof facing exteriorly of the fascia. The external component is positioned relative to the fascia such that the position controlling portion (e.g. 17, 23, 25) guides the external component into the predetermined orientation and supports the component there at, thereby allowing the assembly to be installed on the vehicle without requiring reorientation of the component. The present invention also relates to a loading fixture for installing a front end module assembly onto a motor vehicle.
Patent CA-2304039-A1 (CA)
Inventor: PEARSON ANDREW GEORGE NEISH
IPC: C03B7/086
Filed: 1998-09-17
Abstract: Apparatus for extruding glass (30) from an orifice (31) at the base of a feeder by means of a vertically reciprocating plunger (4) in order to enable glass gobs to be formed (for subsequent moulding into glass objects such as containers) is described. According to the invention, the vertically reciprocating motion of the plunger (4) is generated by means of a linear motor (8) having an actuation member which moves in order to move the plunger (4) correspondingly. The actuation member may bear on the underside of a bridge piece (3) mounted for vertical movement up and down on an appropriate guide structure, the end of the bridge (3) remote from the motor and guide structure having the top end of the plunger (4) fixed to it.
Patent CA-2306815-A1 (CA)
Title: Circuit arrangement for operating at least one discharge lamp
Inventor: KLIER JUERGEN
IPC: H05B41/298
Filed: 1999-04-01
Abstract: The invention relates to a circuit for operating at least one discharge lamp, wherein the circuit has a half-bridge inverter (Q10, Q11) with a downstream load circuit (L1, C10, LP1, C11), at least one coupling capacitor (C11) that is connected to the load circuit (L1, C10, LP1, C11) and the half-bridge inverter (Q10, Q11), in addition to a control device (A1) for the half-bridge inverter (Q10, Q11). According to the invention, the circuit has a reference voltage source (R13, R14) and a detector circuit (DE1) that compares the voltage drop in the at least one coupling capacitor (C11) or the voltage drop divided by a voltage divider in the at least one coupling capacitor (C11) with the reference voltage of the reference voltage source (R13, R14) and generates an output signal for controlling the half-bridge inverter (Q10, Q11).
Patent CA-2306824-A1 (CA)
Title: Encapsulation method
Inventor: RESLOW MATS
IPC: A61K38/27
Filed: 1998-09-24
Abstract: A novel method of encapsulating an active substance in a biodegradable polymer, which comprises: a) dissolving said biodegradable polymer in an organic solvent therefor; b1) dispersing said active substance in the organic solution obtained in step a), to provide a dispersion with the active substance as the inner phase thereof; or alternatively b2) emulsifying said active substance, dissolved in water or other aqueous solvent therefor, in the organic solution obtained in step a), to provide an emulsion with the active substance as the inner aqueous phase thereof; and c) subjecting the dispersion obtained in step b1), or alternatively the emulsion obtained in step b2), to an encapsulation operation with an aqueous polyethylene glycol solution as a continous phase, to provide micro- or nanoparticles having the active substance encapsulated therein. Sustained release particles obtainable therebs.
Patent CA-2308590-A1 (CA)
Title: Method for telephony call blending
Inventor: KAMEN VLADIMIR
IPC: H04M3/523
Filed: 1998-10-22
Abstract: An automated dialer (100) for a call center (105) maximizes agent efficiency in two different ways. In a first method overdial probability is expressed as a probability function of number of agents and total traffic volume; the probability function is set equal to a maximum allowable overdial probability;  and the resulting equation is solved for maximum total traffic volume producing the maximum overdial probability. The maximum total traffic volume is then used to determine a new dialing rate by dividing the difference between the calculated maximum traffic volume and known inbound traffic volume by the product of average call length and hit rate, where hit rate is the percentage of connected calls to total dialed outbound calls. In a second method a maximum total traffic volume is calculated from total number of agents times a desired agent utilization factor, and the total traffic volume is used as in the first method to calculate and set a new dialing rate for outbound calls.
Patent CA-2308843-A1 (CA)
Inventor: DROCHE EMILE
IPC: B60K15/04
Filed: 2000-05-18
Abstract: A lockable cap (1) comprises a single-piece base (10) adapted to close up an aperture, a cover for manoeuvring (20) the base (10) between an open position and a closed position of the cap (1) in the aperture and a latch (24) immovably attached rotation-wise with the cover (20) and adapted to be meshed with restraining means (15) of the base (10) in an unlocked position of said cap (1). It comprises spring means (27) adapted to keep the latch (24) meshed with the holding means (15) of the base (10) in a locked position of the cap (1), the latch (24) being adapted to be disengaged from the holding means (15) by rotation of the cover (20) in an opening direction, against the action exerted by the spring means (27).
Patent CA-2311090-A1 (CA)
Title: Shutter system and pivoting connectors
Inventor: LEE HAN-SEN
IPC: E06B7/086
Filed: 2000-06-09
Abstract: Several embodiments of the shutters employ a variety of synergistic features which may be used individually or in combination to produce a shutter capable of more completely shutting out light. One aspect is the use of a two-step overlapping end to provide a complementary fit in order to shut out light. Another aspect is the use of an angled engagement pin which engages the louver not at its edge, but into its main expanse and nearer the center of pivot of each louver. Another aspect is the use of an accommodation space to accommodate the "U" shaped attachment member of the simultaneous actuation handle, which accommodation space can vary in size and depth to accommodate structures extending from the simultaneous actuation handle. Regardless of relative size, the louvers, engagement pins, and simultaneous actuation handle can be disciplined to form a neater appearance on the shutter assembly.
Patent CA-2313624-A1 (CA)
Inventor: ROY JEAN-GUY
IPC: A22B5/00
Filed: 2000-07-06
Abstract: A loin pulley for processing a carcass-half comprising a loin and a flank partially separated by cutting, the loin comprising a layer fat to be trimmed off. The machine has a frame which is fixed an elongated rectilinear working surface intended to receive and support the loin of the carcass-half to be processed. A conveying system is mounted onto the frame above the working surface for engaging and pressing the loin and moving it together with the flank connected thereto up to a cutting zone. An arcuate cutting blade is mounted to the frame in the cutting zone for engaging the loin when the frame is moved by the conveying system and for cutting the layer fat to be trimmed off the same. Advantageously, the frame is devised to let the flank fall down from the working surface while the carcass-half is moved by the conveying system. As a result, more visibility is left for evaluating an optimum position for the cutting blade.
Patent CA-2314088-A1 (CA)
Inventor: BIVENS STEVEN L
IPC: F16J15/32
Filed: 2000-07-18
Abstract: The air damper includes a piston reciprocating within a cylindrical housing. The piston includes a lip seal which is coated with a minimum of 0.5% / seal part weight graphite powder/molybdenum disulfide. This provides for increased smoothness of operation of the air damper, particularly at low speeds.
Patent CA-2314816-A1 (CA)
Title: Settable spotting fluid compositions and methods
Inventor: WAUGH BRYAN K
IPC: C09K8/02
Filed: 2000-08-02
Abstract: Improved settable spotting fluid compositions and methods are provided. The settable spotting fluid compositions are basically comprised of a hydraulic settable component comprised of fly ash, a fluid loss control additive, a gel strength inhibiting additive, a set retarding additive and water selected from the group of fresh water and salt water present in an amount sufficient to form a slurry having a density in the range of from about 12 to about 15 pounds per gallon.
Patent CA-2317392-A1 (CA)
Title: Proteines secretees et polynucleotides les codant
Inventor: EVANS CHERYL
IPC: A61P43/00
Filed: 1999-01-11
Abstract: L'invention concerne de nouveaux polynucléotides et les protéines codées par ceux-ci.
Patent CA-2318616-A1 (CA)
Inventor: BECHAZ BERNARD
IPC: H02B1/052
Filed: 2000-09-11
Abstract: Ce pied de fixation comporte deux pièces coulissantes (6) l'une par rapport à l'autre, chaque pièce présentant un crochet (12) destiné à permettre le verrouillage sur le rail support.  Une première pièce coulissante (6) présente des moyens d'encliquetage (20) et la seconde pièce coulissante (6) comporte des moyens d'encliquetage complémentaire (16, 18) de manière à ce que ces moyens d'encliquetage coopèrent lorsque les pièces coulissantes (6) sont en position déverrouillée et éventuellement en position verrouillée.
Patent CA-2321547-A1 (CA)
Inventor: AJISAWA YUKIYOSHI
IPC: A61P27/06
Filed: 1999-02-19
Abstract: L'invention concerne des dérivés de l'indole représentés par la formule générale (I), dans laquelle R désigne un éthyle ou un trifluoro-2,2,2-éthyle; Y désigne un hydroxy ou un pivaloyloxy, l'atome de carbone marqué (R) indiquant celui qui présente la configuration R. Ces dérivés, ainsi que leurs sels pharmaceutiquement acceptables, présentent un effet remarquable et de longue durée d'abaissement de la tension oculaire et sont utilisés en conséquence comme médicaments pour l'abaissement de la tension oculaire.
Patent CA-2322962-A1 (CA)
Title: Phenanthrofuran derivatives
Inventor: STAFFORD ANGELA M
IPC: A61P27/02
Filed: 1999-03-03
Abstract: Phenanthrofuran derivatives and methods of using them to treat angiogenic diseases.
Patent CA-2325713-A1 (CA)
Title: Apparatus and methods for forming a mailer with contained document from a single web
Inventor: LEE ROBERT W
IPC: B42D5/02
Filed: 1999-04-08
Abstract: A single web is printed in side-by-side relation with variable and non-variable information forming document and envelope web portions. The web is split longitudinally and the document web portion is cut to form discrete documents. Each document is folded about transverse foldlines to form a folded document and rotated 90° for registration with matching envelope portions on the envelope web. Glue lines are applied to the envelope web. The envelope web is then plow-folded along both margins to form first and second flaps overlying and containing the document within the envelope portion of the envelope web.  The glue lines are sealed to one another and excess envelope web material between adjacent envelopes is removed whereby envelopes containing documents sealed within the envelopes and forming mailers are provided.
Patent CA-2328885-A1 (CA)
Inventor: POLETTI MARK
IPC: G10K15/08
Filed: 1999-04-23
Abstract: An in-line early enhancement generation system comprises one or more microphones positioned close to one or more sound sources so as to detect predominantly direct sound, an early reflection generation stage which generates a number of delayed reproductions of the microphone signals and which has unitary power gain whereby the stability of the system is independent of the delay times and amplitudes, and a number of loudspeakers placed to broadcast said early reflected energy into the room.
Patent CA-2330130-A1 (CA)
Title: Use of polymer dispersions for paper mill color removal
Inventor: METZGAR RICHARD E
IPC: C02F1/56
Filed: 1999-04-22
Abstract: A hydrophilic dispersion polymer which is useful in the removal of color in paper mill waste water. The polymer is preferably polymerized from diallyl-N, N-disubstituted ammonium halide and (meth) acrylamide.
Patent CA-2331125-A1 (CA)
Inventor: SARDESAI HARSHAD P
IPC: H04J14/02
Filed: 1999-11-23
Abstract: In a wavelength division multiplexed system, optical frequencies are assigne d in accordance with a channel plan conforming to an International Telecommunications Union (ITU) grid whereby every third channel position in the grid is vacant. As a result, both four wave mixing (FWM) and cross phase  modulation (XPM) are reduced using ITU standard frequencies. In addition, a low bandwidth expansion factor (BEF) can be achieved.
Patent CA-2332021-A1 (CA)
Title: Diagnostic de la predisposition a l'epilepsie et surveillance de traitement anti-epileptique
Inventor: RABINKOV AARON
IPC: G01N33/487
Filed: 1999-05-12
Abstract: L'invention concerne un procédé et un système de diagnostic pour la détection d'une prédisposition à l'épilepsie chez un patient, pour le diagnostic de l'épilepsie clinique et pour la surveillance d'un traitement anti-épileptique. Ledit procédé consiste à prélever un échantillon sur un patient, de préférence un échantillon sanguin, à déterminer la concentration dans l'échantillon d'au moins deux métabolites de kynurénine, choisis dans le groupe constitué de TRP, L-KYN, KA, 3HOAA, AA et QUIN, ces derniers possédant des propriétés fonctionnellement opposées, et à comparer la concentration desdits métabolites dans l'échantillon et le rapport entre eux, à une plage de valeurs de ces concentrations et aux rapports entre lesdits métabolites, chez des sujets normaux. De plus, le niveau d'activité des enzymes dans les tissus périphériques, tels que les cellules sanguines, peut également être utilisé pour le diagnostic de troubles épileptiques chez un sujet et pour la détection d'une prédisposition auxdits troubles épileptiques chez ce dernier. Pour la surveillance de traitement épileptique, la plage de valeurs de deux des métabolites et le rapport entre eux sont comparés aux plages de valeurs de concentrations et au rapport entre lesdits métabolites, chez des patients épileptiques bien traités ou non par des médicaments anti-épileptiques.
Patent CA-2332182-A1 (CA)
Title: Secure holographic images on paper
Inventor: STEPANEK MICHAEL J
IPC: G02B27/00
Filed: 2001-01-23
Abstract: A paper support has an adhesive layer and a metallized holographic image, wherein the metallized holographic image includes at least two holograms, such that the first hologram is visible only by non-coherent light and the second hologram is visible only by coherent light. The holographic images are formed on a photosensitive element on a polymeric support by imaging steps, which include metallizing the holographic images and overcoating the holographic images with an adhesive layer. Next, the metallized holographic images are transferred to the paper by laminating the adhesive layer to the paper at a predetermined temperature and pressure, and subsequently delaminating the polymeric support from the paper, such that the holographic image remains on the polymer support for reuse.
Patent CA-2332923-A1 (CA)
Title: Process for pelletizing elastomeric anionically polymerised polymers
Inventor: STEWART DAVID RALPH
IPC: B29C48/395
Filed: 1999-05-27
Abstract: A process for pelletizing elastomeric anionically polymerized polymers which  comprises subjecting the polymer to solid state extrusion in a single screw extruder with a length to diameter ratio of 10:1 or less wherein the barrel of the extruder has longitudinal grooves and transversally extending pins to increase mixing wherein the temperature in the extruder is sufficient to agglomerate or melt the polymer but lower than the degradation temperature o f the polymer and the speed of the extruder screw is from 30 to 100 rpm.</SDOA B>
Patent CA-2336215-A1 (CA)
Title: Barbecue light
Inventor: GATES JAMES R
IPC: A47J45/06
Filed: 1999-06-01
Abstract: A handle assembly (11) mountable to a barbecue lid (13) and which includes an integral light (21) positioned to shine upon the cooking surface (24) of the barbecue (15) when the barbecue lid (13) has been so positioned as to expose the cooking surface (24).
Patent CA-2336505-A1 (CA)
Title: Marine diesel engine lubricating oil composition having improved high temperature performance
Inventor: NAGAMATSU HIROYUKI
IPC: C10M159/22
Filed: 2001-02-14
Abstract: A lubricating oil composition containing a base oil of lubricating viscosity, overbased sulfurized alkylphenate detergent or its calcium salt, an overbased alkylsulfonate detergent or its calcium salt, an ashless dispersant, and a zinc dialkyldithiophosphate and/or zinc diaryldithiophosphate is described. The lubricating oil composition provides improved heat stability and anti-wear performance in marine diesel engines operated under severe conditions where the cylinder liner temperature reach 200 to 260°C.
Patent CA-2338255-A1 (CA)
Inventor: BOTICH MICHAEL
IPC: A61M5/158
Filed: 1999-05-13
Abstract: A catheter insertion device (10) is provided for inserting an over-the-needl e catheter (70). The device (10) includes an insertion needle (30) that is retractable into the housing (20) of the device (10) after use to prevent exposure to the contaminated needle (30). The needle retainer (40) releasabl y retains the needle (30) in an extended position against the rearward bias of  the biasing element (60). The needle retainer (40) engages the hub (72) of t he catheter (70) so that when the catheter is removed from the insertion device  (10), the needle retainer (40) automatically releases the needle (30). The biasing element (60) then propels the needle rearwards into the housing (20)  of the device. Further, a device for inserting a guide wire into a patient i s also provided along with methods of inserting the guide wire.