baber/WOPTO huggingface dataset:
Patent CA-2270345-A1 (CA)
Title: Immunostimulatory nucleic acid molecules
Inventor: KLINE JOEL N
IPC: C12N15/117
Filed: 1997-10-30
Abstract: Nucleic acid sequences containing unmethylated CpG dinucleotides that modulate an immune response including stimulating a Th1 pattern of immune activation, cytokine production, NK lytic activity, and B cell proliferation are disclosed. The sequences are also useful as synthetic adjuvant.
Patent CA-2271366-A1 (CA)
Inventor: IGI MASAMI
IPC: C07D251/20
Filed: 1999-05-07
Abstract: A method for producing potassium oxonate which comprises dissolving allantoin in an aqueous potassium hydroxide solution or an aqueous potassium carbonate solution, and oxidizing said allantoin with an alkali metal hypohalogenite in the presence of potassium iodide is provided and, according to the method, potassium oxonate can be efficiently produced without requiring a manganese compound which may entail environmental pollution.
Patent CA-2272289-A1 (CA)
Inventor: HUANG CHING
IPC: G01N33/533
Filed: 1997-11-18
Abstract: This invention relates to a lateral flow immunochromatographic assay device with an increased range of sensitivity without an increase in the clearance time or the occurrence of false positive results. The indicator reagent for the analyte is located in both a separate labeling reagent region and a discrete zone of the analyte detection region.
Patent CA-2276332-A1 (CA)
Title: Method and device for formatting a clipping noise in a multicarrier modulation
Inventor: MESTDAGH DENIS J G
IPC: H04J11/00
Filed: 1997-12-30
Abstract: The invention concerns a system for formatting a signal (s(t), (DMTin) in multicarrier modulation, which consists in clipping (18) the signal, in amplitude, with respect to a threshold value (Aclip), and in re-injecting (10), with delay and on a signal to be formatted, a clipping noise (clip) redistributed (19), at least partially, outside the used frequency band (f1-f2) of the multicarrier modulation signal.
Patent CA-2277272-A1 (CA)
Title: Photographic color developer replenishing concentrates
Inventor: PAPAI LASZLO
IPC: G03C7/413
Filed: 1998-01-29
Abstract: Improved one-part concentrated color developing replenishers and methods of preparation thereof comprising a photographically inert single ring heterocyclic amide. The replenisher concentrates are packaged in a single unit which upon dilution provides ready-to-use replenishing solutions for photographic materials. The concentrated replenishers are characterized by a one-part multi-phase concentrate wherein developing agents are retained in an upper phase and protected from deterioration which normally occurs in the highly alkaline lower phase.
Patent CA-2278176-A1 (CA)
Title: Novel minerals and methods for their production and use
Inventor: ERBE ERIK M
IPC: A61F2/00
Filed: 1998-01-13
Abstract: Uniformly sized and shaped particles of metal salts are provided comprised of one or more metal cations in combination with one or more simple oxoacid anions and a general method for the controlled precipitation of said metal salts from aqueous solutions. The methods proceed via the in situ homogeneous production of simple or complex oxoacid anions in which one or more of the nonmetallic elements e.g. Group 5B and 6B (chalcogenides), and 7B (halides) comprising the first oxoacid anion undergo oxidation to generate the precipitant anionic species along with concurrent reduction of the nonmetallic element of a second, dissimilar oxoacid anion. The oxoacid anions are initially present in solution with one or more metal cations known to form insoluble salts with the precipitant anion.
Patent CA-2278356-A1 (CA)
Title: Optical waveguide sensor system for remote detection
Inventor: FREDERICK DONALD A
IPC: G01B9/02
Filed: 1999-07-22
Abstract: An optical waveguide (28) formed in an integrated optics substrate (30) is included in an optical path of an interferometer (51). An optical signal source (12) is arranged to provide an optical signal to the interferometer (51). A channel waveguide phase modulator (38) its formed on the substrate (30) and arranged to phase modulate optical signals guided by the optical waveguide (28). Signals from a geophone (50) arranged to produce an electrical signal in response to mechanical vibrations are input to the phase modulator (38). The geophone (50) is connected to the channel waveguide phase modulator ((38) such that the electrical signal modulates the phase of the optical signal guided by the optical waveguide (28) so that the interference pattern output from the interferometer (51) indicates the amplitude of the mechanical vibrations.  One or more optical fibers (24) are included in the interferometer (51) and are arranged to provide a mismatch between the interferometer path lengths
Patent CA-2279627-A1 (CA)
Inventor: HILDEBRANDT VOLKER
IPC: G01F1/00
Filed: 1999-08-04
Abstract: The invention relates to a method for metering a medium which is gaseous or in the supercritical state, into a pressure reactor (1). The pressure reactor has a reaction chamber (13) which is connected to a stirrer dome into which the medium is metered at a predetermined volume flow or mass flow in such a way that the pressure in the stirrer dome becomes greater than the pressure in the reaction chamber. This prevents reactive mixtures from diffusing from the reaction chamber into the cavity. The invention also relates to uses of the method. For example, it can be used for purging the pressure reactor, for protecting the stirrer drive, for cooling or heating the contents of the reaction chamber, for regulating the reaction rate, for metering a reactant into the reaction chamber and for controlled charging or pressure release of the pressure reactor. The invention also relates to an apparatus for metering a medium which is gaseous or in the supercritical state.
Patent CA-2279817-A1 (CA)
Title: Process for the preparation of substituted piperidine-epoxides
Inventor: LOHRI BRUNO
IPC: C07D211/70
Filed: 1999-08-09
Abstract: The present invention concerns a process for the preparation of a compound of formula 1 or a salt thereof (see formula I) characterised in that the process comprises a) epoxidation of a compound of formula 2 or a salt thereof (see formula II) in which formulae A is arylene; R1 is -C*R3R4R5; R2 is -O-alkyl, -O-cycloalkyl, -O-alkenyl, -O-aryl, -O-aralkyl, -O-aralkoxyalkyl, -O-alkylsulfonyl, -O-arylsulfonyl, chlorine, bromine or iodine; R3 is hydrogen; R4 is aryl; R5 is alkyl, cycloalkyl, aryl, alkoxyalkyl or hydroxyalkyl; and, wherein C* is an asymmetric carbon atom; b) optionally followed by isolation of the desired stereoisomer.
Patent CA-2280235-A1 (CA)
Title: Process for the preparation of iodinated contrast agents and intermediates therefor
Inventor: VASILEVSKIS JANIS
IPC: C07C233/05
Filed: 1998-02-05
Abstract: The invention provides a process for the production of a 2,3-dihydroxypropylamino compound, said process comprising the reaction steps of:  (i) obtaining an allylamino compound; (ii) epoxidizing said allylamino compound to yield an epoxypropylamino compound; and (iii) hydrolysing said epoxypropylamino compound to yield a 2,3-dihydroxypropylamino compound. This process may be used to produce simple 2,3-dihydroxypropylamino compounds such as APD or complex ones such as BAPD (an intermediate in the production of iohexol).
Patent CA-2280371-A1 (CA)
Inventor: MAXWELL STEWART HODDE
IPC: H04W4/029
Filed: 1999-08-16
Abstract: In a telecommunications system, a subscriber station invokes a sponsored-call application service program when the subscriber station originates a call.  Based upon certain criteria, service logic determines whether the call is sponsored or not. If sponsored, additional service logic utilizes the location of the call origination (i.e., location of the subscriber station) and/or other attributes of the subscriber station to select an announcement from a plurality of announcements for transmission to the subscriber station. After the announcement is transmitted (i.e., played), the subscriber station is connected to the call's desired destination. If not sponsored, the call is handled as a normal call.
Patent CA-2283351-A1 (CA)
Title: Electrostatic/mechanical emulsion treating method and apparatus
Inventor: BUCHANAN VINCENT P
IPC: B03C5/02
Filed: 1999-09-23
Abstract: A treater for electrostatically and/or mechanically separating emulsified brine from oil during longitudinal flow through a horizontally elongated metal tank, wherein adjustable distributor elements are provided for enhancement of the de-emulsification process. The adjustable distributor elements may be externally operated to more closely control the diffusion and distribution of the flowing emulsion across the transverse area of the treater.      The emulsion may be first directed through electrical fields where the brine droplets take on an electrical charge, then move through the distributor elements to electrically grounded coalescing elements. De-emulsified oil is removed in a stream separate from the brine stream. The treater also operates mechanically, with reduced efficiency, when electrostatic operation is unavailable, and can also be operated if coalescing elements are not used. The externally-adjustable, louvered baffles may be accompanied by fixed, non-adjustable louvers at intermediate spacing between the externally-adjustable louvers to provide additional coalescing and flow direction that will enhance dehydration of the process stream, and become an integral extension component thereof.
Patent CA-2283528-A1 (CA)
Inventor: BECKWITH ROBERT W
IPC: G21H1/00
Filed: 1999-09-24
Abstract: A layered device uses electric currents or grating surfaces to create differential neutrino forces on diamagnetic materials transmitted to electrostrictive (piezoelectric) material so as to generate output power or mechanical force. A superconducting conductor using carbon isotope C14 is described.
Patent CA-2285994-A1 (CA)
Title: Composition adhesive
Inventor: HOWARTH IAN MAURICE
IPC: C09D1/02
Filed: 1998-04-27
Abstract: L'invention concerne une composition adhésive renfermant une suspension d'une solution aqueuse au silicate et une charge inorganique finement fractionnée, ladite solution au silicate présentant une teneur en silicate au moins égale à 17 % en poids, et renfermant une zéolite en tant que charge, la taille moyenne des particules de cette zéolite atteignant au moins 0,4 µm.
Patent CA-2291753-A1 (CA)
Title: Fungicide mixtures
Inventor: LEYENDECKER JOACHIM
IPC: A01N43/828
Filed: 1998-05-20
Abstract: The invention relates to a fungicide mixture containing a) a carbamate of formula (I) wherein X means CH and N, n stands for 0, 1 or 2, and R means halogen, C1-C4 alkyl and C1-C4 alkyl halide and the R radicals can be different if n stands for 2, or its salt or addition product, and b) a 4,5benzo-1-thia-2,3-diazol of formula (II) wherein R' means CN, CO2H, CO2-C1-C4 alkyl or CO-S-C1-C4 alkyl, or its salt or addition product, in a synergistically effective quantity.
Patent CA-2292366-A1 (CA)
Title: Scroll-type compressor
Inventor: TUKAMOTO KO
IPC: F01C1/02
Filed: 1999-12-13
Abstract: A scroll-type compressor includes a housing having a suction chamber with a suction port provided on a wall of the housing that opens into the suction chamber. The compressor also includes first and second scroll members at an angular and radial offset for forming fluid pockets, each scroll member having a spiral element. A groove is formed on an inner surface of the housing and an outer peripheral surface of one of the spiral elements. The groove extends in a circumferential direction of the housing at a position to include the suction port and forms an oil path for introducing oil into the interior of the housing when the compressor is assembled.      Because the oil path is formed regardless of the position of the scroll member, oil may be introduced into the interior of the housing through the suction port without generating an overflow of oil to the outside of the housing.
Patent CA-2294252-A1 (CA)
Title: Temperature stable bragg grating package with post tuning for accurate setting of centre frequency
Inventor: BULMAN JONATHAN MARK
IPC: G02B5/18
Filed: 1998-06-18
Abstract: A method of accurately setting the centre wavelength of a fibre grating fixed in a temperature compensation package, the method comprising the steps of:  fixing the grating to the package and altering the size of the package in a post processing step. The altering step can comprise elongating or compressing the package so as to substantially permanently alter the size of the package.  The temperature compensation package can comprise: a first elongated member having a first coefficient of thermal expansion; two second elongated members, one each attached to the ends of the first elongated member and having their other second ends closer together than the ends of the first elongated member, the second elongated members having a second coefficient of thermal expansion relatively more than the first coefficient of thermal expansion; and two material matching members attached to the second ends and adapted to provide for material matching fixing mixtures to the second elongated members; said fixing mixtures to the second elongated members; said fixing mixtures fixing ends of the fibre grating to the temperature compensation package. The fixing mixture can comprise glass of metal solder. The material matching members are preferably located within an aperture in the second ends.
Patent CA-2294984-A1 (CA)
Title: Apparatus for the manufacture of a photographic print
Inventor: FENNER JUERG
IPC: G03B27/46
Filed: 2000-01-11
Abstract: The invention relates to apparatus for the manufacture of a photographic print on a copier material, whereby an exposure arrangement is provided with a projection optic for the manufacture of the photographic print, which includes a mirror matrix with individually movable mirrors, whereby the exposure arrangement includes a broadband light source, for example a halogen light source, whereby a filter arrangement for filtering or letting pass certain spectral portions or certain amounts of light is positioned in the light path between the light source and the minor matrix.
Patent CA-2297537-A1 (CA)
Inventor: GERDES JERRY D
IPC: A01G25/16
Filed: 2000-01-31
Abstract: The method of controlling the speed of the last regular drive unit of a center pivot irrigation system having a corner irrigation system pivotally connected thereto is disclosed comprising the steps of: placing a pressure transducer at the downstream side of the main water line for monitoring the changes in main water line pressure as the sprinklers on the extension water line are sequenced; driving the last regular drive unit at a predetermined speed; recording the output of the pressure transducer at predetermined intervals; comparing the recorded output at the predetermined intervals to the pressure recorded when all the sprinklers on the extension line are turned off; and varying the speed of the last regular drive unit according to the formula NEW SPEED = (END      PRESSURE/RETRACTED END PRESSURE)1/2 x L.R.D.U. SPEED SETTING.
Patent CA-2301373-A1 (CA)
Title: A method of producing modified vinyl ether polymers
Inventor: BUBAT ALFRED
IPC: C08F16/12
Filed: 2000-03-20
Abstract: This invention relates to a method of producing modified vinyl ether polymers, wherein vinyl ether polymers comprising recurring units of general formula (I) (see formula I) where R represents a C2 - C4 alkyl group and x denotes an integer from 10 to 1000, are partially transetherified with compounds of general formula Y-OH, wherein Y  represents aliphatic and/or cycloaliphatic hydrocarbon groups comprising 5 to 30 carbon atoms, the hydrogen atoms of which can be replaced at least in part by halogen atoms and/or aryl radicals, and/or represents aliphatic, cycloaliphatic and/or aromatic groups with a molecular weight of up to 6000 which contain at least one ether group -O- or an ester group -COO-within the molecule, in the presence of compounds of the platinum metals with the release of the corresponding C2 - C4 alcohols, wherein statistically at least one R  radical is replaced by a Y radical per molecule of vinyl ether polymer.
Patent CA-2305130-A1 (CA)
Inventor: DACOSTA FRANK A
IPC: A61J7/04
Filed: 2000-04-13
Abstract: The invention is a flexible, manually operated dosage timing indicator which may be attached to a prescription drug vial, box or bottle to remind the user when the next dosage should be taken, or if such dosage has already been taken but forgotten, indicating these facts to the user.   In a preferred embodiment one size of the invention using a flexible, strap-like main component accommodates prescription containers of all formats, types, sizes and materials, including plastic and glass vials, bottles and cardboard or plastic boxes. An alternate embodiment using a preformed, and more rigid C-shaped version of the strap-like component plus all of the same components, markings and methods of attachment to a container as the preferred embodiment, may be used exclusively with cylindrically-shaped prescription vials or bottles.  Other than this essential difference, all references to the invention or device hereinafter in this patent application apply to both embodiments.   The application, components, indicia and operation of the device allow it to be used by non-impaired, literate persons as well as by individuals who are impaired, illiterate, who do not read or understand English and/or who suffer from poor eyesight or are totally blind.
Patent CA-2305496-A1 (CA)
Inventor: CARR JOHN FREDERIC
IPC: A01N25/24
Filed: 1998-10-13
Abstract: The invention concerns an aqueous biocide system comprising: at least a water soluble or water dispersible biocide agent and at least a polyorganosiloxane with water soluble or water dispersible functions of the formula (I) R?1¿ R?2¿ R?3¿ Si O(R?4¿ R?5¿ Si O)¿p? (R?6¿Q Si O)¿q? Si R?3¿R?2¿R?1¿ in which: the symbols R?1¿R?2¿R?4¿ R?5¿ R?6¿ identical or different represent a C¿1?-C¿6? alkyl or phenyl, preferably methyl: the symbols R?3¿ identical or different represent a C¿1?-C¿6? alkyl radical or phenyl, preferably methyl or the symbol Q; the symbol Q represents an ether polyoxyalkylene group of formula -R - O-(R'O)¿n? R'' where R represents a linear C¿3?-C¿15? alkyl group, particularly trimethylene, a branched C¿4?-C¿15? alkyl group, particularly methyl-2 trimethylene; the structural unit (R'O)¿n? represents a poly(ethyleneoxy) and/or poly(propyleneoxy) group; <u>n</u> is a mean value ranging from 5 to 200, preferably 5 to 100; R'' represents H or a C¿1?-C¿6?, preferably C¿1? alkyl group; <u>p</u> is a mean value ranging from 10 to 200, preferably 10 to 100; <u>q</u> is: a value <u>q1</u> equal to 0, R?3¿ then representing the symbol Q, or preferably a mean value <u>q2</u> ranging from 1 to 100, preferably 5 to 50, whatever R?3¿ represents. The invention also concerns the use of said system for disinfecting hard surfaces, or a method for disinfecting hard surfaces using said system, with controlled release of the biocide when contacted with an aqueous medium of said hard surface whereon said aqueous medium has been deposited and dried.
Patent CA-2305725-A1 (CA)
Title: Exhaust processor end cap
Inventor: WILLIAMS RONALD S
IPC: F01N3/021
Filed: 1998-10-07
Abstract: An exhaust processor (18) is provided having an exhaust processor body (12), first, and second end caps (14, 16). The exhaust processor body (12) includes an outer shell (31) and a substrate (15) positioned to lie within the outer shell (31). The outer shell (31) includes an outer surface (92) facing away from the substrate (15), an inner surface (112) facing toward the substrate (15), spaced apart first and second ends (86, 88). The inner surface (112) of the outer shell (31) defines a first end cap region (121) at the first end (86), a second end cap region (121) at the second end (88), and an inner surface size (122). The first end cap (14) is positioned to lie in the first end cap region (121), and the second end cap (16) is positioned to lie in the second end cap region (121). Each of the first and second end caps (14, 16) include a crimpable flange (44) that is sizable to include a size substantially equal to the inner surface size (122) of the inner surface (112) of the outer shell (31).
Patent CA-2308479-A1 (CA)
Inventor: VAN GEEL JACOBUS
IPC: G01T5/00
Filed: 1998-11-25
Abstract: This invention refers to a method for the quantitative determination of the fissile material content in small size particles present in samples such as environmental samples. According to the invention, the "fission track process", known per se, is applied to said samples, according to which the samples are sandwiched in organic sheets and then submitted to a defined thermal neutron fluence whereupon fission products of the fissile material in the sample create in the sheets fission tracks which are rendered visible by etching the sheets. Then the size of selected particules having created such tracks is determined by means of an appropriate microscope and thereafter these visible tracks of said selected particules are compared to pre-established standard tracks obtained by the same process from particules of different stepped known size and enrichment ratio.
Patent CA-2309911-A1 (CA)
Title: System and method for reducing peak current and bandwidth requirements in a display driver circuit
Inventor: WORLEY W SPENCER III
IPC: G09G3/20
Filed: 1998-11-13
Abstract: A display driver circuit for reducing system interface bandwidth requirements and peak current requirements includes a select line sequencer, for providing a series of select line addresses on an address terminal set, and a select line decoder coupled to the address terminal set, for decoding each of the select line addresses and asserting an update signal on a corresponding one of a plurality of output terminals. Optionally, the select line sequencer generates a series of select sub-line addresses, and the select line decoder is a select sub-line decoder.  An optional select address register receives initial select addresses from a system and provides the initial select addresses to the select line sequencer. An alternate display driver circuit including a select line sequencer and a seledct sub-line sequencer is also described.