baber/WOPTO huggingface dataset:
Patent CA-2226111-A1 (CA)
Title: In situ preparation of nucleoside phosphoramidites and their use in synthesis of oligonucleotides
Inventor: ZHANG ZHAODA
IPC: C07F9/6533
Filed: 1997-04-28
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 weakly acidic conditions. 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-2227827-A1 (CA)
Title: In vitro artificial cornea and sclera
IPC: A61K35/44
Filed: 1998-01-23
Abstract: The invention provides an in vitro avascular human corneal equivalent that comprises immortalized human cell lines. As these corneal equivalents are in vitro models, they are maintained in an incubator throughout the testing period, thereby eliminating the problems and expense associated with animal care. The corneal equivalent is preferably surrounded by a matrix in which angiogenesis (formation of capillary-like structures) can occur in vitro. This surrounding matrix has the potential to play the role of a pseudo-sclera, allowing the in vitro assessment of the cornea's angiogenic reaction to any substance or injury. Furthermore, the model is capable of being produced easily, is physiologically functional and can give predictable and quantifiable results when submitted to various drugs, chemicals and/or physical trauma. Modifications can be made, such as the use of primary donor cells instead of cell lines; and the physical and chemical treatments of the matrix material to make the constructs suitable for use in transplantation.
Patent CA-2228038-A1 (CA)
Title: 2(1h)-quinolone derivatives, their preparation and their use in therapy
Inventor: ALETRU MICHEL
IPC: C07D401/06
Filed: 1996-09-12
Abstract: Compounds of formula (I)   in which A represents a 4-(thieno[3,2-c]pyridin-4-yl)-1-piperazinyl or 4-(4-fluorobenzoyl)-1-piperidyl group, R1 and R2 each represent, independently of one another, either a hydrogen or halogen atom, or an amino, hydroxyl, nitro, cyano, (C1-C6)alkyl, (C1-C6)alkoxy, trifluoromethyl, trifluoromethoxy or -COOH group, a group -COOR4, a-CONH2 group or a group -CONHR4, -CONR4R5, -SR4, -SO2R4, -NHCOR4, -NHSO2R4 or -N(R4) 2, where R4 and R5 are each a(C1-C4) alkyl group, R3 represents either a hydrogen atom, or a (C1-C4)alkyl group, or a group -(CH2)POH, -(CH2)p NH2, - ( CH2 ) n COOH, - ( CH2 ) n COOR4 , - ( CH2 ) n CONH2 , - ( CH2 ) n CONHOH, - (CH2)p SH, - (CH2)n SO3H, - (CH2)n SO2NH2, - (CH2)n SO2NHR4, - (CH2)n SO2NH4R5, - (CH2)CONHR24, - (CH2)n CONR4R5, -(CH2)p NHSO2R4, -(CH2)p NHCOR4 or -(CH2)p OCOR4, where R4 and R5 are each a(C1-C4)alkyl group, n is equal to 1, 2, 3 or 4, p is equal to 2, 3 or 4 and m is equal to 2, 3 or 4.  Use in therapy.
Patent CA-2229102-A1 (CA)
Title: Off-road in-line skate
Inventor: OLSON TODD J
IPC: A63C17/10
Filed: 1998-02-09
Abstract: An off-road in-line skate which includes a plurality of wheels mounted to a frame of a skate where the wheels each have a diameter in the range of 40 to 60% of the length of a boot of the skate to provide a maximum wheel diameter to clear obstructions while presenting an overall wheel base length less than a maximum wheel base length which would otherwise cause tripping during cross-over skating.
Patent CA-2229516-A1 (CA)
Title: Compensation of dispersion
Inventor: DJUPSJOEBACKA ANDERS
IPC: H04B10/2507
Filed: 1996-08-02
Abstract: In transmission of optical signals in a dispersive medium, the signals are transmitted simultaneously in two modes in an optical fibre (15), which are orthogonal to each other, one of the signals being a non-chirped amplitude modulated signal modulated by an amplitude modulator (3), and the other signal is a phase modulated signal modulated by a phase modulator (5). The received signal is formed by the sum of the amplitude modulated contributions of the two signals. In an optical fibre system, two orthogonal modes of po~rization in the same fibre can be chosen. In this manner it will be possible to transmit high bit rates and primarily over long distances.
Patent CA-2230788-A1 (CA)
Inventor: DOLLINGER MARKUS
IPC: C07D231/20
Filed: 1996-08-22
Abstract: L'invention concerne de nouveaux 4-thiocarbamyl-1-(3-pyrazolyl)-pyrazoles de la formule générale (I), dans laquelle R?1¿, R?2¿, R?3¿, R?4¿ et R?5¿ ont les significations données dans la description. L'invention concerne par ailleurs un procédé permettant de les préparer et leur utilisation comme herbicides.
Patent CA-2232875-A1 (CA)
Title: 3-component coating composition of high solvent resistance and high masking resistance
Inventor: BORGHOLTE HARALD
IPC: C09D155/00
Filed: 1996-08-26
Abstract: The invention relates to coating compositions comprising:   (A) from 5 to 60% by weight of at least one polyester-modified polyacrylate resin consisting of: (a1) from 20 to 60% by weight of at least one polyester and (a2) from 40 to 80% by weight of at least one hydroxyl-containing polyacrylate resin which has been prepared at least in part in the presence of component (a1), (B) from 1 to 35% by weight of at least one hydroxyl-containing, siloxane-modified polyacrylate resin, and (C) from 5 to 50% by weight of an isocyanate crosslinking agent, and to a process for the production of a protective and/or decorative coating with such coating compositions, and to their use as topcoats and refinish coating materials.
Patent CA-2233083-A1 (CA)
Inventor: STAMMLER SONJA
IPC: C08G18/42
Filed: 1996-06-07
Abstract: A water-based sulfonated polyurethane composition and footwear manufactured using the composition as an adhesive, coating and primer. The sulfonated polyurethane is a reaction product of (a) at least one polyisocyanate; (b) at least one alkylene diol; (c) at least one sulfonated polyester polyol wherein the sulfo groups thereof are present as alkali metal salts; and (d) at least one dihydroxy carboxylic acid, or salt thereof. The composition may also be modified to include a dispersed polymer or copolymer of an ethylenically unsaturated monomer. Such modified compositions may be obtained by preparing the sulfonated polyurethane in the presence of an ethylenically unsaturated monomer and subsequently subjecting the mixture to free-radical polymerization conditions.
Patent CA-2233495-A1 (CA)
Title: Adaptively tuned vibration absorber for reduction of aircraft cabin noise
Inventor: MIXON TIMOTHY
IPC: F16F15/04
Filed: 1998-03-27
Abstract: An aircraft engine is attached to the fuselage by a mounting structure that has a vibration absorbing system which includes first and second sensors to produce signals indicating vibration along two orthogonal axes. A third sensor, such as an accelerometer, is coupled to the mounting structure for sensing vibration of the engine. A tachometer circuit, connected to the third sensor, produces first and second speed signals that indicate the speeds of two rotating spools in the engine. Four vibration absorbers are attached to the engine mounting structure and controllers are provided to dynamically tune the resonant frequency of each vibration absorber in response to a unique combination of one of the two vibration signals and one of the two speed signals. Thus the vibration absorbers reduce the engine spool vibrations that are transmitted through the mounting structure along the two orthogonal axes. The resonant frequency of each absorber is altered to track variation of the vibrations due to changes in engine speed.
Patent CA-2234198-A1 (CA)
Inventor: SUZUKI KAZUYOSHI
IPC: C05F17/00
Filed: 1998-04-06
Abstract: Compost of the present invention has a weight ratio (C/N) of carbon (C) to nitrogen (N) of 9.5 or less on completion of a compost treatment.  Further, a method of the present invention for producing the compost comprises the steps of providing a compost material having the weight ratio (C/N) of carbon (C) to nitrogen (N) of 10.5 or less, and carrying out the compost treatment of the compost material by maintaining water content thereof substantially at 30-60%.  Thus, the present  invention  provides  the  compost  excellent  in fertilizing activity and the production method thereof.
Patent CA-2235240-A1 (CA)
Inventor: CASTANO RUBEN CARLOS
IPC: H02G7/20
Filed: 1998-04-20
Abstract: A tubular channeling unit including a grounded external metal sheathing and an internal longitudinal cavity, and method for laying such a tubular channeling unit by suspension on a high voltage aerial power line system including at least two towers supporting a set of high voltage electrical conductors suspended from the towers at a specified height above the ground and at a minimum predetermined safety level.
Patent CA-2235939-A1 (CA)
Title: Inspiratory duration in cpap or assisted respiration treatment
Inventor: BRYDON JOHN WILLIAM ERNEST
IPC: A61M16/00
Filed: 1996-10-17
Abstract: Apparatus for the sup-ply of breathable gas cycli-cally at an inspiratory pres-sure and the lower expira-tory pressure substantially in synchronism with a patient's (16) respiration is disclosed.  A flow generator (10) is cou-pled to a gas delivery system (12) to deliver the breath-able gas to the patient's air-ways. A motor controller (23) receives a signal (36) representing respiratory flow.  A motor controller (23) out-puts a control signal (24) has control over the electric mo-tor (25) and thus the tur-bine (22) to generate the re-quired inspiratory and expi-ratory pressures. The con-troller (23) detects transitions between inspiration and ex-piration from the flow sig-nal (36) to discriminate be-tween patient inspiration and expiration. A counter (58) counts a first time duration commenced from the last transition to inspiration, whereby if the first time duration elapses before a transition to expiration, the con-troller (23) causes the supply of the expiration pressure. Furthermore, another counter (62) counts a second time duration commenced from the last transition to inspiration that forces the turbine (22) to supply the inspiratory pressure until the second time duration elapses even if during the second time duration there is a transition to expiration by the patient.
Patent CA-2237272-A1 (CA)
Title: Method for feeding flat sample bags into further processing
Inventor: JAEGER ERICH
IPC: B65B43/12
Filed: 1998-05-11
Abstract: Discrete lengths of a web (1) of sample bags are each arranged in a container in an ordered manner such that the web can be removed from the container without further aids (13), by pulling on its head end (A) and such that the tail end (E) also is grippable without changing the web arrangement in the container and independently of the fullness of the container (13). For feeding sample bags into a processing station, a first container is positioned in the region of the feeding location. Then the head end (A) of the web is pulled out of the container and lead into a feeding mechanism of the processing station. During the feeding of the web (1) of bags into the processing, further containers are formed into a series of containers by connecting the tail end (E) of the web in one container to the head end (A) of the web in a successive container. It is found that webs of bags arranged as a plurality of folded stacks in the container fulfill the requirements mentioned above in the most simple manner. Especially suitable containers for this purpose are parallelepipedic boxes.
Patent CA-2237923-A1 (CA)
Inventor: YOSHIDA SHIRO
IPC: H05K1/02
Filed: 1998-05-15
Abstract: A printed board has at least two conductor layers including a power supply layer and a ground layer, and a spiral coil inductor disposed in opposite ones of the conductor layers. The spiral coil inductor has a terminal connected to a power supply line of the power supply layer, and another terminal connected to a device power terminal disposed on one of the conductor layers and to be connected to a power supply terminal of a circuit device and a terminal of a decoupling capacitor.  A device ground terminal is disposed on one of the conductor layers and to be connected to a ground terminal of the circuit device and another terminal of the decoupling capacitor, the device ground terminal being connected to a ground line of the ground layer.
Patent CA-2238008-A1 (CA)
Title: Improved hyperbaric chamber
Inventor: BOWER JAMES W
IPC: A62B31/00
Filed: 1996-11-14
Abstract: This invention is a lightweight hyperbaric chamber capable of maintaining pressures of up to 22 psi greater than ambient through the use of at least two zippers (11, 12), at least one of which is a sealing zipper (12), and preferably with heavy fabric (9) and a reinforcing outer layer (10).
Patent CA-2239105-A1 (CA)
Title: Polyamide, method for its manufacture and compounds containing it
Inventor: SPERONI FRANCO
IPC: C08G69/04
Filed: 1996-12-27
Abstract: Polyamide contains molecular chains of formula (I) or (II): R1-Ä-A-X-(-Y-R2-Z)n-R3Üm (I) R4-Ä-Y-R2-Z-Üp-R3 (II) Y = -N(R5)- when X and Z = -C(O)-; and Y = -C(O)- when X and Z = -N(R5)-; A = a covalent bond or a 1-20 C aliphatic hydrocarbon radical which may contain heteroatoms; R2 = 2-20 C optionally branched aliphatic or aromatic group; R3, R4 = H or a hydrocarbon group containing a -C(O)- or -N(R5)- group; R5 = H or 1-6 C hydrocarbon group; R1 = a linear or cyclic, aromatic or aliphatic hydrocarbon group with at least 2C and optionally containing heteroatoms; m = 3-8; n =100-200; and p = 100-200. Also claimed is a process for the production of a polyamide.
Patent CA-2240794-A1 (CA)
Title: Method of integrating handoff queuing with adaptive handoff reserve channels
Inventor: MCCARTHY MICHAEL JOHN
IPC: H04W36/08
Filed: 1998-06-16
Abstract: A method and system, for use with wireless communications systems having a cellular architecture, for achieving near real time reservation of channels in a first cell for servicing call-in-progress handoffs from other cells such that blocked calls originating within a first cell and blocked handoff of calls-in-progress from other cells are held within acceptable levels. The method and system specify that a minimum number of unutilized channels in a first cell be reserved for servicing call-in-progress handoffs. In the event that a request for a call-in-progress handoff from one of the other cells into the first cell cannot be serviced due to a lack of unutilized channels, the specified minimum number of reserved channels is dynamically adjusted upward and the request for a call-in-progress handoff that could not be serviced is enqueued. Enqueued requests are serviced in a first in first out fashion as unutilized channels become available. In the event that a request for a call-in-progress handoff from one of the other cells into the first cell can be serviced without being enqueued, the specified minimum number of reserved channels is dynamically adjusted downward such that a number of unutilized channels sufficient to service requests for handoff of calls-in-progress is dynamically maintained in a fashion that does not unduly restrict requests for call access from mobile subscriber units within the first cell.
Patent CA-2240881-A1 (CA)
Inventor: LEMIEUX PIERRE
IPC: G07C9/00
Filed: 1998-06-17
Abstract: The present invention relates to access control systems more commonly referred to as security systems. In a preferred embodiment of the invention, the access control system uses a memory card and a network of access control subsystems. Among the specific characteristics of the invention are the loading of schedule data on the memory card and the devolution of specific functions such as schedule validation to the access control subsystem level. These characteristics of the system provide, among other advantages, a reduction of the amount of wiring, a reduction in the hardware and installation costs, a considerable memory saving for the hardware and an increase in the system's capacity and flexibility.
Patent CA-2241354-A1 (CA)
Title: Double wall tank
Inventor: BARON ROGER J
IPC: B65D88/08
Filed: 1998-06-19
Abstract: A double walled tank for above ground use includes a circular base defined by an upper primary floor and a slightly larger lower, secondary floor connected to the primary floor by a peripheral weld seam; a cylindrical side wall defined by an inner primary shell and an outer secondary shell, the bottom end of the secondary shell being above the bottom end of the primary shell, such bottom end being connected to the primary floor and to the primary shell by weld seams and a continuous sealing ring; and a conical roof connected to the top end of the primary shell by a weld seam.
Patent CA-2241687-A1 (CA)
Inventor: HARDEN T KENDALL
IPC: A61K31/7076
Filed: 1997-10-23
Abstract: Novel P2Y receptor antagonists derived from ATP and UTP are described. P2Y receptor antagonists with competitive antagonist activity at the P2Y receptor are described in particular, as are P2Y receptor antagonists that bind selectively to the P2Y1 receptor. Also described herein are methods of detecting a P2Y receptor in a biological sample.
Patent CA-2243655-A1 (CA)
Title: Internet telecommunications system
Inventor: RALLIS WILLIAM N
IPC: H04M3/00
Filed: 1997-01-22
Abstract: A method and apparatus is described which enables users (10) of a standard telephone system (12) to access a packet-based network, such as the Internet (36). A first callover unit (32) converts signals (14) from the standard telephone system (12) into packets (34) formatted for Internet transmission. Embodiments are described which allow a voice telephone call to be placed substituting the Internet (30) for a long-distance carrier (22). A second callover unit (40) converts the packets (38) back into voice signals (24) transmittable over a standard telephone network (20) to a standard voice telephone (28).
Patent CA-2243718-A1 (CA)
Inventor: REIFEL-MILLER ANNE ELIZABETH
IPC: A61K48/00
Filed: 1997-02-06
Abstract: The invention provides a gene therapy method for delivering safe and effective, long-term amounts of GLP-1(7-37)-based proteins useful for treating Type I and Type II diabetes. The invention eliminates the need for subcutaneous injections and is able to provide tight glucose control.
Patent CA-2244170-A1 (CA)
Title: Medication delivery pen having an improved clutch assembly
Inventor: BENDEK ANTONIO A
IPC: A61M5/24
Filed: 1998-07-29
Abstract: An improved medication delivery pen is provided for injecting fluids such as insulin within body tissue. The medication delivery pen includes a mechanism that prevents the removal of a cartridge unless an injector button on the medication pen is in a predefined position, a bayonet attachment and an improved clutch assembly in a dose setting mechanism that provides improved control over the torque necessary to rotate units counter ring in the medication delivery pen using a dose setting knob.
Patent CA-2245907-A1 (CA)
Inventor: BENETTI ANGELICO
IPC: A61G5/14
Filed: 1997-01-31
Abstract: A standing aid chair with a seat consisting of at least two elements (3A, 3B) in the shape of a variable-geometry bracket. The chair has a structural assembly (1) consisting of a base (2) with legs (15), and a frame (6) connected via first coupling members (8) to the first seat element (3A) and via second coupling members (9) to the base (2), each of said coupling members (8, 9) being movable between two end positions by a raising and lowering mechanism. When moved, said first coupling members (8) essentially enable a so-called comfort adjustment of the seat, whereas said second coupling members (9) essentially move the seat from a lowered position to a raised position and vice versa. Said chair is useful as a standing aid.
Patent CA-2250107-A1 (CA)
Inventor: M HWALD HELMUT
IPC: H01M50/414
Filed: 1997-03-27
Abstract: The invention concerns mixture Ia, containing a mixture IIa, consisting of: a) between 1 and 95 wt % of a solid III, preferably a basic solid III, with a primary particle size of between 5 nm and 20 .mu.m; and b) between 5 and 99 wt % of a polymer composition IV, obtained by the polymerization of: b1) between 5 and 100 wt %, relative to the composition IV, of a condensation product V comprising: .alpha.) at least one compound VI which can react with a carboxylic acid or a sulphonic acid or a derivative or a mixture of two or more thereof; and .beta.) at least one mol per mol of the compound VI of a carboxylic acid or sulphonic acid VII which comprises at least one radically polymerizable functional group, or a derivative thereof or a mixture of two or more thereof; and b2) between 0 and 95 wt %, relative to the composition IV, of a further compound VIII with an average molecular weight (number average) of at least 5000 with polyether segments in the main or side chain. The portion by weight of mixture IIa in mixture Ia is between 1 and 100 wt %.
Patent CA-2250922-A1 (CA)
Inventor: HUBER ADRIAN
IPC: C12N9/10
Filed: 1997-04-25
Abstract: L'invention concerne un procédé permettant d'isoler une enzyme ayant une activité chimique ou biologique désirée. Selon ce procédé, on lie l'enzyme à un substrat qui lui est destiné, on fait réagir l'enzyme et le substrat de façon à obtenir un produit qui reste lié à l'enzyme, et on isole l'enzyme en isolant sélectivement le produit lié à l'enzyme.
Patent CA-2252299-A1 (CA)
Title: Refrigerator door construction
Inventor: BANICEVIC NEDO
IPC: F25D23/02
Filed: 1998-10-30
Abstract: A refrigerator door for use in a refrigerator appliance has an outer door panel, an inner door liner, a metal reinforcing collar and a paper sheet. The collar has a generally rectangular frame that extends over a peripheral border of a central portion of the door liner. The collar also includes sidewall flanges which extend rearwardly from the frame around a corner at the peripheral border of the central liner portion and over an inner wall of a dyke sidewall of the liner. The collar provides localized support for shelves carried by the door liner and improves door rigidity. The sheet of paper extends across an opening in the middle of the frame of the collar to further improve door rigidity.
Patent CA-2254143-A1 (CA)
Title: Algorithme de compensation adaptative de la non-uniformite
Inventor: KILGORE PATRICK M
IPC: H04N5/365
Filed: 1998-04-15
Abstract: Ce procédé adaptatif, destiné à enlever un bruit stable à partir d'images de cible focale, consiste à appliquer un ensemble facteurs de correction (26) à l'image focalisée, à partir de la cible focale et à appliquer un filtre (24C) à l'image corrigée et focalisée. On peut également appliquer l'ensemble facteurs de correction à une version floue de l'image de cible focale et appliquer le filtre à l'image corrigée et floue. Le procédé consiste ensuite à calculer les erreurs de bruit stable au moyen des images filtrées, à utiliser ces erreurs pour mettre à jour les facteurs de correction, puis à employer ces facteurs mis à jour pour traiter l'image suivante. Dans un mode de réalisation, le filtre est un filtre anti-médian, et dans un autre mode de réalisation, le filtre est un filtre anti-moyenne.
Patent CA-2255643-A1 (CA)
Inventor: JONES PETER
IPC: B22F5/08
Filed: 1997-05-23
Abstract: A powder metal gear wheel having a core density of at least 7.3 g/cc, and in one embodiment 7.4 to 7.6 g/cc and a hardened carburized surface. A method of manufacturing transmission gears comprises, sintering a powder metal blank to produce a core density of between 7.4 to 7.6 g/cc, rolling the surface of the gear blank to densify the surface, and then heating the rolled sintered part and carburizing in a vacuum furnace.