baber/WOPTO huggingface dataset:
Patent CA-2290955-A1 (CA)
Inventor: MAURER GREGORY SCOTT
IPC: H04B10/291
Filed: 1998-05-20
Abstract: An optical communications apparatus, comprising: (a) at least one pump laser support, on which is located at least one pump laser which provides pump light energy suitable for one or more optical amplifiers; (b) a splitter support, on which is located an optical splitter, the splitter having at least one inlet and a plurality of outlets; and (c) at least one optical waveguide which optically connects the pump laser(s) to the inlet(s) of the optical splitter such that pump light energy transmitted from the pump laser(s) is split into a plurality of separate portions before leaving the apparatus; the pump laser support, the splitter support and the optical waveguide constituting a single discrete apparatus which is able to provide pump light energy for a plurality of optical amplifiers, each optically connected, in use, to a respective outlet of the splitter.
Patent CA-2291372-A1 (CA)
Inventor: ADAMS BYRON H
IPC: A63B53/04
Filed: 1999-12-01
Abstract: A golf club head for hitting a golf ball toward a target has a directional tendency to launch the golf ball in a selected direction. Basic embodiments include a club head having an asymmetric ball striking face such that one side of the face, as measured from the center of the face, has a first bulge radius and the other side of the face has a second bulge radius. The club head assumes a directional tendency in the direction toward the smaller bulge radius. Other embodiments of club heads with a directional tendency have a striking face with a bulge radius apex shifted either right or left of the center of the striking face such that a club face with the bulge radius apex to the left results in a right directional tendency and a club face with a bulge radius apex to the right results in a left directional tendency. Further embodiments of a club head may include a combination of a shifted bulge radius apex and a different radius on each side of the center of the striking face.
Patent CA-2293898-A1 (CA)
Title: Process for flushing the gas circuit of a fuel cell, and apparatus for practicing the process
Inventor: CHARLAT PIERRE
IPC: H01M8/04
Filed: 2000-01-04
Abstract: The present invention relates to a process for purging the gas circuits of fuel cells, adapted to evacuate from these circuits, the water in liquid phase which may be there, as well as if desired the unusable gases or the like that the circuit is adapted to channel, for example nitrogen in circuits adapted for the circulation of hydrogen of air-hydrogen cells; it also relates to a device for practicing this process.
Patent CA-2294826-A1 (CA)
Title: Stirling cycle machine improvements
Inventor: NORRIS MICHAEL
IPC: F02G1/043
Filed: 1998-07-14
Abstract: A rhombic drive, such as for a Stirling machine, for interconverting rotary motion of engine axles to the reciprocating linear motion of two connecting rods. A  flexure is employed as a common pivot between links coupled eccentrically to the engine axles. Flexure joint couplings may be used to couple the connecting rods to respective pistons of an engine. Other improvements to a Stirling machine include radiative heating of the heater head and the use of a ceramic heater head to transmit radiative heat into the working fluid of the machine.
Patent CA-2297095-A1 (CA)
Title: 1-(n-phenylaminoalkyl)-piperazine derivatives substituted at position 2 of the phenyl ring
Inventor: TESTA RODOLFO
IPC: A61P43/00
Filed: 1998-07-31
Abstract: 1-(N-phenylaminoalkyl)-piperazine derivatives of formula (I), (R = H, alkyl-CO, cycloalkyl-CO, substituted cycloalkyl-CO or monocyclic heteroaryl-CO; R1 =  H or lower alkyl; R2 = halogen, alkoxy, phenoxy, NO2, CN, acyl, NH2, NH(acyl), alkyl-SO2NH, alkoxycarbonyl, NH2CO, (alkyl)NHCO, (alkyl)2NCO, (acyl)NHCO, CF3 or polyfluoroalkoxy; B = benzyl or mono- or bicyclic aryl or heteroaryl, all optionally substituted) bind to 5HT1A receptors and are useful for the treatment of neuromuscular dysfunctions of the lower urinary tract. The use of these compounds for the preparation of a medicament for this treatment is claimed, and some of the compounds (with restricted B values) are claimed per se.
Patent CA-2297410-A1 (CA)
Title: Method of treating dopaminergic and gaba-nergic disorders
Inventor: MAHANTHAPPA NAGESH K
IPC: A61K45/00
Filed: 1998-07-24
Abstract: It is shown here that hedgehog proteins or mimicking agents possess novel activities beyond phenotype specification. Using cultures derived from the embryonic day 14.5 (E14.5) rat ventral mesencephalon, we show that hedgehog or mimicking agents are also trophic for dopaminergic neurons. Interestingly, hedgehog or mimicking agents not only promote dopaminergic neuron survival, but also promote the survival of midbrain GABA-immunoreactive (GABA-ir) neurons.
Patent CA-2298663-A1 (CA)
Title: Procede de production d'articles en papier de soie multicouches
Inventor: HILBIG KLAUS
IPC: D21H21/22
Filed: 1998-07-17
Abstract: L'invention concerne un procédé de production d'articles en papier de soie multicouches présentant une douceur améliorée. Ce procédé comprend les étapes consistant: à produire des bandes continues de papier de soie en couches, à assembler ces bandes continues en couches pour former une bande continue multicouches non encore traitée en vue d'être adoucie, et à appliquer sur cette bande continue à l'état sec une lotion adoucissante dont la composition minimale en pour cent en poids est la suivante: 3 à 30 % d'un composé d'ammonium quaternaire, 0,1 à 3,0 % d'un supresseur de mousse au siloxane, 0,1 à 10 % de poudre d'aloès ordinaire, 0,05 à 5 % d'un adoucissant polyhydroxy, en particulier un polyéthylène glycol, l'eau constituant le reste de cette composition.
Patent CA-2298776-A1 (CA)
Title: Image processing device and image processing method
Inventor: OHKI MITSUHARU
IPC: G06T15/04
Filed: 1999-06-02
Abstract: A two-dimensional image (Figure 11A) representing a three-dimensional object modeled after a house is stored in a buffer concerned. When the user specifies, for example, shape information that a checkerboard-pattern wall is rectangular and the vertexes of the wall as feature points, a development image (Figure 11B) showing a development of the wall on a two-dimensional plane is formed based on the shape information and feature points and stored in a paste buffer. A two-dimensional image (Figure 11C) of a circular column is stored in the buffer concerned. When the user specifies, for example, shape information that the drawing shows a side of the circular column and predetermined points on the side as feature points, the image (Figure 11B) stored in the paste buffer is pasted onto the side of the circular column stored in the buffer concerned based on the shape information and feature points (Figure 11D). Thus, the user can edit three-dimensionally and readily a two-dimensional image.
Patent CA-2299138-A1 (CA)
Title: Method for transferring mpoa packet
Inventor: HORIKAWA KOICHI
IPC: H04L12/70
Filed: 2000-02-23
Abstract: A method for transferring an MPOA packet which is capable of permitting address resolution based on layer 3 packet filter information and capable of preventing establishing an undesirable short cut path.      In an ATM network, an MPOA server 20 which received an address resolution request packet from an MPOA client 10 determines whether or not the address resolution request packet be forwarded to the other MPOA server or the other MPOA client based on a layer 3 packet filter information.
Patent CA-2300173-A1 (CA)
Title: Process for reducing total acid number of crude oil
Inventor: BEARDEN ROBY JR
IPC: C10G29/06
Filed: 1998-08-28
Abstract: The invention comprises a method for reducing the amount of carboxylic acids in petroleum feeds comprising the steps of (a) adding to said petroleum feed a catalytic agent comprising an oil soluble or oil dispersible compound of a metal selected from the group consisting of Group VB, VIB, VIIB and VIII metals, wherein the amount of metal in said petroleum feed is at least about 5 wppm, (b) heating said petroleum feed with said catalytic agent in a reator at a temperature of about 400 to about 800 °F (about 204.44 to about 426.67 °C) and a pressure of about atmospheric to about 1000 psig (about 6996.33 kPa) in the substantial absence of hydrogen, and (c) sweeping the reactor containing said petroleum feed and said catalytic agent with an inert gas to maintain the combined water and carbon dioxide partial pressure below about 50 psia (344.75 kPa).
Patent CA-2300364-A1 (CA)
Inventor: SHAPERO MICHAEL H
IPC: C07K19/00
Filed: 1998-08-18
Abstract: The present invention is directed to novel polynucleotides and the polypeptides encoded by them, each of which are specific to human prostate tumor cells. The present invention further provides chimeric polypeptide molecules comprising the polypeptides of the present invention fused to heterologous polypeptide sequences, and antibodies which bind to the polypeptides of the present invention. Also provided herein are methods for producing the polypeptides of the present invention, as are detection assays that detect the presence of tumor cells in tissue or bodily fluid samples and methods for identifying novel compositions which modulate the activity of prostate tumor antigens and the use of such compositions in diagnosis and treatment of disease.
Patent CA-2300903-A1 (CA)
Inventor: WOLFE HENRY R
IPC: G01N33/68
Filed: 1998-08-20
Abstract: Method of selecting a candidate drug compound comprising generating from a starting oligopeptide a plurality of oligopeptides having single site amino acid modifications which lead to a change in the ratio of binding affinity of said oligopeptide to a receptor to biological reponse of said binding, identification of components in the oligopeptide responsible for secondary structure and replacement of said components with non-natural amino acids, construction of combinatorial libraries based on the use of sets of amino acids for the modification sites identified and the construction of further libraries based upon oligopeptides produced in the first library having the desired binding activity. Drug candidates are selected from the identified members of the libraries.
Patent CA-2301239-A1 (CA)
Inventor: MILLER RICHARD B
IPC: C10G11/18
Filed: 2000-03-15
Abstract: Staged combustion in a single regenerator of a FCC unit is disclosed. The regenerator has fi spent catalyst distributor at the top of the catalyst bed, and an air grid at the lower end of the bed. A baffle separates the catalyst bed into upper and lower stages. Excess oxygen is present in the lower bed; partial CO combustion mode is maintained in the upper bed. The baffle inhibits backmixing flux to achieve sufficient staging to bum the catalyst clean under partial CO combustion. This achieves a clean bum of the catalyst in a single regenerator vessel in the partial CO combustion operating mode.      Surprisingly, the baffle also reduces catalyst entrainment in the dilute phase, thereby cutting particulate emissions from the regenerator and reducing cyclone wear.
Patent CA-2301680-A1 (CA)
Title: Post-compression hidden data transport for video
Inventor: LEE CHONG U
IPC: H04N7/24
Filed: 1998-07-22
Abstract: Auxiliary data (315, 414) is carried substantially imperceptibly with video transform data in combined transform samples according to a visibility threshold. The auxiliary data (315, 414) provides a capability for a copy protect scheme of verification of television viewing activity. The video transform samples (240) are extracted from the compressed packetized data stream and normalized if required. The auxiliary data (315, 414) modulates data carrier sequences such as pseudo-noise (PN) spread spectrum signals (412, 630) in different spatial frequencies to provide auxiliary data subband samples (SPD0-SPD N-1), which are in turn combined with the video transform samples (SS0-SS N-1) in one or more spatial frequencies to provide combined subband samples. The combined transform samples (SS'0-SS'N-1) are then multiplexed into the packetized data stream (462). In a decoder (368), the combined transform samples are demodulated to recover the auxiliary data signal (672).
Patent CA-2301725-A1 (CA)
Title: Specific saccharide compositions and methods for treating alzheimer's disease and other amyloidoses
Inventor: SNOW ALAN D
IPC: A61B19/02
Filed: 1998-08-28
Abstract: A pharmaceutical agent for treating an amyloid disease in a patient, wherein the pharmaceutical agent comprises a saccharide containing at least one substituted anionic group, or a pharmaceutically acceptable salt of the saccharide containing at least one substituted anionic group, and in preferred embodiments is a therapeutically effective amount of glucose pentasulfate. The agent is directed to amyloid diseases in general and to Alzheimer's disease in particular. The pharmaceutical agent may advantageously be combined with a pharmaceutically acceptable carrier, diluent or excipient. The pharmacological agent may be used, singly or in combination with other agents, in connection with the treatment or prevention of Alzheimer's disease, type II diabetes, or other amyloidoses. The pharmaceutical agent may be used, singly or in combination with other agents to reduce, eliminate or prevent fibrillar amyloid formation, deposition, accumulation or persistence; or to inhibit fibrillar amyloid formation or growth; or to inhibit amyloid-proteoglycan/glycosaminoglycan interactions; or to cause dissolution or disruption of preformed amyloid fibrils. Similarly, the pharmaceutical agent may be used, singly or in combination with other agents, to reduce, eliminate or prevent amyloid protein formation, deposition, accumulation or persistence, regardless of the nature of the amyloid protein involved or the clinical setting.
Patent CA-2302436-A1 (CA)
Title: Branched alkoxy-substituted 2-aminopyridines
Inventor: LOWE JOHN ADAMS III
IPC: C07D213/73
Filed: 1998-08-11
Abstract: The present invention relates to 6-phenyl-pyridin-2-ylamine derivatives of formula (I) wherein R1, R2, R3 and R4 are defined as in the specification, that exhibit activity as nitric oxide synthase (NOS) inhibitors, to pharmaceutical compositions containing them and to their use in the treatment and prevention of central nervous system and other disorders.
Patent CA-2303623-A1 (CA)
Title: Method and apparatus for forming an optimized window
Inventor: DEWEY CHARLES H
IPC: E21B7/06
Filed: 2000-03-31
Abstract: Methods and apparatus are described for forming a window of optimum dimensions in casing wall. A window of maximum width is cut when the center line of the mill tool is located inside of the inner diameter of the casing where a maximum amount of casing is drilled away by the mill tool. A whipstock is described which deviates the mill tool outwardly so that the center line of the mill tool is in approximately this position. The whipstock then maintains the mill tool at this approximate location until a window of desired length is cut having a substantially maximum width.
Patent CA-2304230-A1 (CA)
Title: Flexible metal wire stent
Inventor: BALLOU KURT
IPC: A61F2/82
Filed: 1998-09-29
Abstract: A self-expanding metal wire stent made of shape memory alloy such as nitinol in which a plurality of spaced sections of closed cells are interconnected by straight sections of wire which may be parallel to the longitudinal axis of the stent or may be disposed angularly with respect thereto.
Patent CA-2304630-A1 (CA)
Inventor: CUMMING KENNETH IAIN
IPC: A61P31/04
Filed: 1998-09-30
Abstract: L'invention a trait à une poudre à micro-matrices au goût dissimulé dans laquelle le rapport: copolymère cationique synthétisé à partir de méthacrylate de diméthylaminoéthyl et d'esters d'acide méthacrylique neutres / médicament doté de faibles caractéristiques organoleptiques est supérieur à 2/1, de préférence à 4/1 et, mieux encore, à 6/1 (poids/poids). Il est possible de produire des poudres à micro-matrices au goût dissimulé à libération immédiate par dessiccation par atomisation du médicament et du polymère cationique alors que l'on peut produire des poudres à micro-matrices à libération prolongée par granulation de poudres à libération lente, lesquelles peuvent être produites par dessiccation par atomisation du médicament avec un polymère retardateur, avec le copolymère cationique. Il est possible d'incorporer les poudres de cette invention au goût dissimulé, à libération immédiate ou prolongée, à des formes posologiques classiques à administration orale, notamment des pilules, des suspensions, des comprimés à mâcher ou des comprimés effervescents.
Patent CA-2305199-A1 (CA)
Title: Laterally assisting platform support
Inventor: LAUG HORST
IPC: E06C7/48
Filed: 1998-09-17
Abstract: The novel side auxiliary platform support provides a surface for standing or walking on at the side of a simple ladder erected against a support or a free-standing extendible multipurpose double ladder. The support can be folded out and folded away and has rails which can also be folded away. The invention also prevents the ladder from tipping or slipping in the case of a simple ladder or rocking in the case of an extended double ladder. The support is configured in such a way that the side auxiliary platform can be completely folded out and folded away on the side of a ladder on which it is mounted.  Wall running rollers are also provided on the front surfaces of the side auxiliary platform in order to make it easier to push an extendible simple ladder on which the side auxiliary platform is mounted up a wall. Integrated wall supports prevent a simple ladder from canting when the side auxiliary platform is folded out.
Patent CA-2306718-A1 (CA)
Title: Determining cluster membership in a distributed computer system
Inventor: MODIRI RAMIN
IPC: G06F13/00
Filed: 1998-10-20
Abstract: Cluster membership in a distributed computer system is determined by determining with which other nodes each node is in communication and distributing that connectivity information through the nodes of the system.  Accordingly, each node can determine an optimized new cluster based upon the connectivity information. Specifically, each node has information regarding with which nodes the node is in communication and similar information for each other node of the system. Therefore, each node has complete information regarding interconnectivity of all nodes which are directly or indirectly connected. Each node applies optimization criteria to such connectivity information to determine an optimal new cluster. Data represent the optimal new cluster is broadcast by each node. In addition, the optimal new cluster determined by the various nodes are collected by each node. Thus, each node has data representing the proposed new cluster which is perceived by each respective node to be optimal. Each node uses such data to elect a new cluster from the various proposed new clusters. For example, the new cluster represented by more proposed new clusters than any other is elected as the new cluster. Since each node receives the same proposed new clusters from the potential member nodes of the new cluster, the new cluster membership is reached unanimously. In addition, since each node has more complete information regarding the potential member nodes of the new cluster, the resulting new cluster consistently has a relatively optimal configuration.
Patent CA-2307339-A1 (CA)
Inventor: FRIEDMAN ELLIOT P
IPC: G01N33/50
Filed: 1998-10-23
Abstract: La présente invention a trait de manière générale à des matières botaniques de valériane et à des procédés de transformation de ces matières en formes utiles d'un point de vue médicinal et pharmaceutiquement acceptables. Plus particulièrement, l'invention a trait à l'utilisation d'empreintes de composition et d'activité dans le traitement de matières de valériane, d'actée à grappes, de V. agnus-castus, d'airelle ou de chardon-marie pour produire des produits botaniques, tels que des médicaments, qui remplissent les conditions requises pour constituer des compositions de qualité pharmaceutique convenant pour un usage clinique ou vétérinaire en vue de traiter et/ou soulager des maladies, des affections ou des états pathologiques.
Patent CA-2308973-A1 (CA)
Title: Soft selection combining based on successive erasures of frequency band components in a communication system
Inventor: SUNDBERG CARL-ERIK WILHELM
IPC: H04L1/00
Filed: 2000-05-19
Abstract: Techniques for processing received information in a communication system, such that performance is significantly improved in the presence of certain types of interference. In an illustrative embodiment, first and second digital sidebands are transmitted on either side of an FM or AM host carrier signal in a hybrid in-band on-channel (HIBOC) digital audio broadcasting (DAB) system. The compressed digital audio information in the sidebands is encoded using an outer code, e.g., a cyclic redundancy code (CRC), and an inner code, e.g., a complementary punctured pair convolutional (CPPC) code. A receiver generates an error indicator based at least in part on a first decoding of the received information. The error indicator characterizes interference associated with at least one of the digital sidebands. The receiver then generates at least one alternative decoding of the received information if the error indicator has a designated characteristic. For example, the receiver may generate the alternative decoding by eliminating from consideration in the receiver decoding process a designated portion of at least one of the digital sidebands. The error indicator may be indicative of the presence or absence of a first adjacent interference signal of a particular level within a frequency band associated with one of the sidebands, and may be based on, e.g., a signal-to-noise ratio measurement generated from a pilot tone associated with a given sideband, and/or an error flag generated using the CRC outer code. Portions of the given sideband may be eliminated from consideration via successive erasures of sideband components, i.e., subbands, thereby resulting in an increase in the effective code rate of the inner code.
Patent CA-2311827-A1 (CA)
Title: Auxiliary corrective eyeglasses for use with primary eyeglasses
Inventor: OLIPHANT SAMUEL C JR
IPC: G02C9/00
Filed: 2000-06-16
Abstract: Auxiliary "task-distance" eyeglasses for use with conventional corrective eyeglasses to eliminate the constant head tilting otherwise necessary to maintain focus when using only the conventional lenses. The auxiliary glasses have upper partial lenses that correct mid-range vision, the focal length required for viewing a computer screen, reading piano music, viewing an instrument panel, or any other arms' length task. The zone of mid-range correction extends across the full width of the lenses. The lenses of the auxiliary glasses are connected by a bridge and supported on the primary glasses by two short tabs that extend sidewardly so as to rest on the temple members of the primary glasses. No clips or clamps are involved, so the auxiliary glasses simply "drop in" behind the regular glasses, avoiding damage to either the primary or the auxiliary lenses. This configuration makes the auxiliary glasses less obtrusive than conventional clip-on lenses. Moreover, the auxiliary glasses can be formed inexpensively in one piece of molded plastic, and can be sold without a prescription.