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Aleksandrs
Aleksandrs Chernobrovijs, Olaine LV
| Patent application number | Description | Published |
|---|---|---|
| 20100022784 | N-Carbamoylmethyl-4-(R)-Phenyl-2-Pyrrolidinone, Method of its Preparation and Pharmaceutical Use - The invention relates to the R-enantiomer of N-carbamoylmethyl-4-phenyl-2-pyrrolidinone (R-Carphedon) of pharmacological value. The method of its preparation includes the N-alkylation of 4(R)-phenyl-2-pyrrolidinone with ethyl bromoacetate in the presence of a strong base and the treatment of intermediate N-ethoxycarbonylmethyl-4(R)-phenyl-2-pyrrolidinone with ammonia. | 01-28-2010 |
| 20100076219 | METHOD FOR PREPARATION OF 6-[3(1-ADAMANTYL) -4-METHOXYPHENYL]-2-NAPHTOIC ACID - A method for preparation of 6-[3-(1-adamantyl)-4-methoxyphenyl]-2-naphthoic acid is disclosed based on “one pot” synthesis approach including a direct synthesis of boronic acid derivative from 2-(1-adamantyl)-4-bromoanisole and cycloboranes with a subsequent Suzuki-Miyaura coupling with 6-halonaphthenoates and basic hydrolysis of the reaction product in ethylene glycol or 1,2-propanediol. | 03-25-2010 |
| 20100113816 | METHOD FOR PREPARTION OF SUBSTITUTED ADAMANTYLARYMAGNESIUM HALIDES - The present invention concerns fine organic synthesis, particularly the method for preparing of substituted adamantylarylmagnesium halides. | 05-06-2010 |
| 20100160677 | PROCESS FOR PREPARATION OF 6-[3-(1-ADMANTYL)-4-METHOXYPHENYL]-2-NAPHTOIC ACID. - A process for preparation of 6-[3-(1-adamantyl)-4-methoxyphenyl]-2-naphthoic acid from 2-(1-adamantyl)-4-bromanisolee is disclosed, based on transformation of 2-(1-adamantyl)-4-bromanisole into a Grignard's reagent by using metallic magnesium, anhydrous lithium chloride and dibromoethane followed by transmetallation with borates to 3-(adamantyl)-4-methoxyphenylboronic acid, which is converted into 6-[3-(1-adamantyl)-4-methoxyphenyl]-2-naphthoic acid esters by Suzuki-Miyaura cross-coupling reaction with alkyl-6-halonaftoates catalyzed by Pd [0] or Pd/phosphine ligands and followed by basic hydrolysis in ethylene glycol or 1,2-propanediol of ester thus obtained into 6-[3-(1-adamantyl)-4-methoxyphenyl]-2-naphthoic acid. | 06-24-2010 |
Aleksandrs Chernobrovijs, Riga LV
| Patent application number | Description | Published |
|---|---|---|
| 20110263864 | REGENERATION OF 2,2'-CYCLOPROPYLIDENE-BIS (OXAZOLINES) - The present invention provides a method for regeneration of chiral 2,2′-cyclopropylidene-bis(oxazolines), such as (3&R, 3′aR,8aS,8′aS)-2,2′-cyclopropylidenebis-[3a,8a]-dihydro-8H-indeno-[1,2-d]-oxazole and (45,4′5,5R,5′R)-2,2′-cyclopropy-lidenebis-4,5-diphenyldihydro-4,5-oxazole, used as a part of complex catalysts for e.g. stereoselective addition reactions, from the reaction mixtures, by selective sorption of 2,2′-cyclopropylidene-bis(oxazolines) on a sorbent, such as silica gel, isolation of the sorbent from reaction mixture, desorption of 2,2′-cyclopropylidene-bis(oxazolines) from the sorbent with suitable organic solvent and final recovery of 2,2′-cyclopropylidene-bis(oxazolines) from the organic solvent used for desorption process. Catalytic quality of recovered compounds does not differ from those in freshly prepared catalysts. | 10-27-2011 |
Aleksandrs Gutcaitas, Riga LV
| Patent application number | Description | Published |
|---|---|---|
| 20110212956 | Pyrazolopyrimidines for treating CNS disorders - Substituted pyrazolopyrimidine derivatives of formula (I) | 09-01-2011 |
Aleksandrs Gutcaits, Riga LV
| Patent application number | Description | Published |
|---|---|---|
| 20090311275 | Carrier for targeting nerve cells - The present invention relates to a transport protein which can be obtained by modifying the heavy chain of the neurotoxin formed by | 12-17-2009 |
Aleksandrs Santars, Toronto CA
| Patent application number | Description | Published |
|---|---|---|
| 20090198716 | METHOD OF BUILDING A COMPRESSION DICTIONARY DURING DATA POPULATING OPERATIONS PROCESSING - A system and method for synchronously building a Ziv-Lempel dictionary during online insert processing. In one embodiment the invention includes a method for processing information that includes the steps of initiating a process for adding data to a data object including a table and determining if a predetermined condition exists for triggering the creation of a compression dictionary. The compression dictionary is then created if the predetermined condition exists. Once created, the dictionary may then be inserted into the data object. | 08-06-2009 |
| 20110289061 | REDISTRIBUTE NATIVE XML INDEX KEY SHIPPING - Techniques are described for data redistribution in a database system. Embodiments store a first set of receiver location identifiers mapped to a document identifier, the first set of receiver location identifiers assigned to a first set of receiver locations storing relational data referencing the document identifier. Embodiments further store a second set of receiver location identifiers mapped to the document identifier, the second set of receiver location identifiers assigned to a second set of receiver locations storing document data corresponding to the document identifier referenced by the relational data. Sender index keys are received separately from the relational data and the document data, the sender index keys referencing the document identifier and containing sender location identifiers. Embodiments determine, from the first set of receiver location identifiers and the second set of receiver location identifiers, which receiver location identifiers are mapped to the document identifier referenced by the sender index keys. The sender location identifiers are then replaced with the determined receiver location identifiers. | 11-24-2011 |
Aleksandrs Scerbina, Riga LV
| Patent application number | Description | Published |
|---|---|---|
| 20090202356 | VERTICAL AXIS ROTOR-TYPE WIND TURBINE - The invention refers to the field of wind power engineering, particularly to the vertical axis rotor-type wind turbines, which can be used for drive of electric generators or other using equipment of mechanical energy. The rotor-type wind turbine contains a central vertical shaft, mounted in a hollow elongated supporting column, and rotor structure, comprising two lattice-type blocks with power elements—the lattice-type stacks of aerodynamic blades. Each of the lattice-type blocks is carried by two corresponding lattice-type arms. When using the wind turbine two-block structure, the blocks are positioned by 180° to each other. The end parts of the aerodynamic lattice-type blades in blade blocks are fastened in relevant upper and lower shroud flanges. Each blade block forms the lattice and inter-blade channels so that the efficiency of utilization of the energy of the wind blowing along the inter-blade channels is determined as the sum of thermodynamic component and kinetic component of the factor of utilization kinetic energy of wind. Moreover, the design of vertical-axis wind turbine provided with lattice-type blade blocks and inter-blade channels ensure the rotation of the rotor under the impact of air flux even at low wind velocities. | 08-13-2009 |
Aleksandrs Slivkins, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20110264639 | LEARNING DIVERSE RANKINGS OVER DOCUMENT COLLECTIONS - A document selector selects and ranks documents that are relevant to a query. The document selector executes an instance of a multi-armed bandits algorithm to select a document for each slot of a results page according to one or more strategies. The documents are selected in an order defined by the results page and documents selected for previous slots are used to guide the selection of a document for a current slot. If a document in a slot is subsequently selected, the strategy used to select the document is rewarded with positive feedback. When the uncertainty in an estimate of the utility of a strategy is less than the variation between documents associated with the strategy, the strategy is subdivided into multiple strategies. The document selector is able to “zoom in” on effective strategies and provide more relevant search results. | 10-27-2011 |
Aleksandrs Titovs, Olaine LV
| Patent application number | Description | Published |
|---|---|---|
| 20120064809 | TUFTED BUFFING PAD - A buffing pad is comprised of a hub with a central opening for attaching the same to a power buffer. The pad includes a layer of tufted wool or other fibrous buffing medium spaced from but surrounding the hub and a block of material such as a cylindrical block of foam positioned between the fibrous buffing medium and the hub. The block of material includes an aperture therethrough that is in alignment with the central opening in the hub. The dimensions of the block of material are such as to prevent tufts of the fibrous buffing medium from entering the central opening of the hub and interfering with the ability of the buffing pad to be attached to the power buffer. | 03-15-2012 |
Aleksandrs Zavoronkovs, Riga LV
| Patent application number | Description | Published |
|---|---|---|
| 20110313308 | Systems and Methods for Communicating with a Computer Using Brain Activity Patterns - The embodiments described herein are directed to systems and methods for communicating with a computer. The system includes a capture device having sensors to capture a particular brain activity pattern indicative of the mental activity generated in the user by a particular subject, a data storage device operable for storing a plurality of stored brain activity patterns each of which being associated with at least one computer readable indicia indicative of a subject that generated that brain activity pattern. The system also has a processor operable to receive the captured brain activity pattern, search for matching stored brain activity patterns, and if there is at least one matching stored brain activity pattern, retrieve the at least one indicia associated with the at least one matching stored brain activity pattern. The capture device may be an EEG capture device and the captured and stored brain activity patterns are EEG profiles. | 12-22-2011 |