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Chavan, IN
Amit Chavan, Maharashtra IN
| Patent application number | Description | Published |
|---|---|---|
| 20080200733 | Processes For The Preparation Of Purified Solanesol, Solanesyl Bromide & Solanesyl Acetone - The present invention relates to processes for the preparation of purified solanesol, solanesyl bromide & solanesyl acetone. Solanesyl acetone has the chemical name—all—trans 6,10,14,18,22,26,30,34,38-nonamethyl-5,9,13,17,21,25,29,33,37-triacontanonaen-2-one, of formula 1 and is used for synthesis of coenzyme Q | 08-21-2008 |
Amit Chavan, Mumbai IN
| Patent application number | Description | Published |
|---|---|---|
| 20080200732 | Novel Intermediates Useful for the Preparation of Coenzymes, Process for the Preparation of Novel Intermediates and an Improved Process for the Preparation of Coenzymes - The present invention relates to novel intermediates for the preparation of coenzymes, processes for the preparation of the intermediates and an improved process for the preparation of Coenzymes. The present invention particularly relates to an improved process for the preparation of Coenzyme Q, more particularly for Conenzyme Q | 08-21-2008 |
Amit Anant Chavan, Kalwa IN
| Patent application number | Description | Published |
|---|---|---|
| 20100312010 | Process for the Preparation of (S)-Pregabalin - The present invention provides a process for resolving racemic pregabalin to S-pregabalin by using a chiral acid to form a pregabalin salt, purifying the salt to obtain a purified S- pregabalin salt then neutralizing the salt to obtain S-pregabalin having good chiral purity. | 12-09-2010 |
Anand Pandurang Chavan, Maharashtra IN
| Patent application number | Description | Published |
|---|---|---|
| 20090264662 | PROCESS FOR THE PREPARATION OF 5,6 -DIHYDRO -4H-4(S)-ETHYLAMINO-6(S)-METHYLTHIENO[2,3-b] THIOPYRAN-2-SULFONAMIDE- 7,7 -DIOXIDE AND ITS SALT - The present invention relates to resolution of (cis, trans) 5,6-dihydro-4H-4-ethylamino-6-methylthieno[2,3-b] thiopyran-2-sulfonamide-7,7-dioxide using dibenzoyl-L-tartaric acid monohydrate or di-p-toluoyl-L-tarrtaric acid monohydrate as a chiral resolving agent in presence of methanol to obtain hemitartarate salt, purifying it to obtain hemitartarate salt of 5,6-dihydro-4 H-4 (S)-ethyl amino-6(S) methylthieno [2,3-b] thiopyran-2-sulfonamide-7,7-dioxide with de of >99% , Chemical purity >99.5% with cis isomer content of <0.1% and further converting into its pharmaceutically acceptable salts, preferably hydrochloride salt. | 10-22-2009 |
Gajanan Jijaba Chavan, Gujarat IN
| Patent application number | Description | Published |
|---|---|---|
| 20110230663 | PROCESS FOR THE PREPARATION OF DONEPEZIL HYDROCHLORIDE - The present invention relates to novel process for preparing Donepezil hydrochloride of formula (I) | 09-22-2011 |
K. A. Chavan, Dombivli IN
| Patent application number | Description | Published |
|---|---|---|
| 20090240020 | Polyether ketone, its monomer and its phenolate - A process for the preparation of an alkali metal salt of 4-chloro-4′-hydroxy benzophenone including the steps of (a) preparing purified 4-chloro-4′-hydroxy benzophenone by a process including distilling under reduced pressure a liquid containing 4-chloro-4′-hydroxy benzophenone and a solvent selected from diphenyl sulphone, diphenylene sulphone, benzophenone and dichlorobenzophenone, and then (b) preparing the alkali metal salt of thus purified 4-chloro-4′-hydroxy benzophenone by the reaction of the purified 4-chloro-4′-hydroxy benzophenone with a stoichiometric excess of at least one alkali metal base. There is also described a polymerization process using the alkali metal salt to yield PEK with high inherent viscosity and improved mechanical and thermal properties. | 09-24-2009 |
Rajesh Prabhakar Chavan, Maharashtra IN
| Patent application number | Description | Published |
|---|---|---|
| 20100120721 | SUBSTITUTED PIPERIDINOPHENYL OXAZOLIDINONES - The present invention relates to oxazolidinones of Formula I and pharmaceutically acceptable salts, pharmaceutically acceptable solvates or polymorphs thereof. The invention also relates to processes for the preparation of the compound of Formula I and pharmaceutically acceptable salts, pharmaceutically acceptable solvates or polymorphs thereof, and to pharmaceutical compositions containing the compounds of Formula I and pharmaceutically acceptable salts, pharmaceutically acceptable solvates or polymorphs thereof and to methods for treating or preventing microbial infections using the compounds of Formula I and pharmaceutically acceptable salts, pharmaceutically acceptable solvates or polymorphs thereof. | 05-13-2010 |
Sameer Chavan, Noida IN
| Patent application number | Description | Published |
|---|---|---|
| 20090025017 | Simplifying Interaction With Multiple Applications When Using Forms Via A Common Interface - Simplifying interaction with multiple applications when using forms via a common interface. In one embodiment, a mapping data indicating the forms used for corresponding combinations of an action and a class of data is maintained. On receiving an action identifier and a class identifier from a user using a common interface, the specific form is determined from the mapping data based on the action and class identifiers. The specific form is then displayed to the user on a display. As a result, a user can quickly/directly access a desired form. | 01-22-2009 |
Sunil Chavan, Nashik IN
| Patent application number | Description | Published |
|---|---|---|
| 20090156604 | FUSED BICYCLIC IMIDAZOLES - Compounds of formula (I) | 06-18-2009 |
Unmesh H. Chavan, Mumbai IN
| Patent application number | Description | Published |
|---|---|---|
| 20110300209 | MODIFIED RELEASE SOLID PHARMACEUTICAL COMPOSITIONS OF TRIMETAZIDINE AND PROCESS THEREOF - There is provided a modified release solid pharmaceutical composition comprising Trimetazidine and polyethylene oxide, wherein the composition does not include any lubricant. | 12-08-2011 |
Vilas Bhiku Chavan, Maharashtra IN
| Patent application number | Description | Published |
|---|---|---|
| 20090203937 | PROCESS FOR PREPARING L- (+) -LACTIC ACID - The present invention provides a commercially viable process for the preparation of highly pure and optically active L-(+)-lactic acid and S-(−)-methyl lactate, in high yield, obtained from esterification of aqueous crude lactic acid solution produced by sugar cane juice fermentation broth and methanol in continuous counter current trickle phase approach or in continuous counter current bubble column manner, using stabilizers and the methyl lactate so obtained is recovered and followed by purification of reasonably pure methyl lactate using reagent mixture such as sodium bi-carbonate, mono-ethanolamine or di-ethanolamine, urea or sodium-bicarbonate, mono-ethanolamine or di-ethanolamine, thiourea to reduce the impurity of dimethyl ester of dicarboxylic such as dimethyl oxalate or di-methyl succinate or methyl ester of mono-carboxylic acid such as methyl pyruvate present as an impurity, so as to get highly pure S-(−)-methyl lactate followed by hydrolyzing highly pure S-(−)-methyl lactate using highly pure lactic acid as a catalyst, using highly pure water as the hydrolysis media and by using pre-treated activated carbon with dilute L-(+)-lactic acid, in batch or continuous mode. This very high pure S-(−)-methyl lactate constitutes an important product having interesting possibilities of application at an industrial level, in pharmaceuticals. Highly pure L-(+)-lactic acid thus obtained is used as an acidulant, as a food additive, for pharmaceutical applications, a monomer for making poly-lactic acid, as a monomer to prepare biodegradable polymer which are useful for manufacturing bags, application films, in the field of sanitary field, and has medical applications. | 08-13-2009 |
Vinayak Chavan, Pune IN
| Patent application number | Description | Published |
|---|---|---|
| 20120038144 | Fittings for Electrical Conduits - An electrical conduit fitting comprising a metallic housing and a plurality of apertures in wall of the metallic housing. The plurality of apertures are configured to reduce weight of the fitting. The fitting also comprises a holding arrangement such as set-screw, locknut, screw-in connection, clamp etc. at each extremity of the metallic housing. | 02-16-2012 |
Vinayak Manohar Chavan, Maharashtra IN
| Patent application number | Description | Published |
|---|---|---|
| 20090218131 | CONDUIT CONNECTOR - In an embodiment, a conduit connector can comprise: a body comprising a box engagement region capable of engaging an opening in an enclosure and a spring configured to engage the connector and the enclosure. The box engagement region can have a root surface, a leading tab, and a follower tab wherein the root surface and leading tab can be located between a leading edge and a secondary edge. A leading tab perimeter edge and a follower tab perimeter edge define a tab perimeter diameter that is larger than an opening in the enclosure. When the leading tab is inserted into the enclosure the spring can be disposed to engage the secondary edge and the enclosure. | 09-03-2009 |
Yuvaraj Atmaram Chavan, Maharashtra IN
| Patent application number | Description | Published |
|---|---|---|
| 20080207912 | Method for manufacture of ceftiofur - A process for preparation of ceftiofur of formula (I) of high purity and substantially free from impurities is disclosed. The process comprises reacting [2-(2-aminothiazol-4-yl)]-2-syn-methoxyimino acetic acid-2-benzothiazolyl thioester of formula (II), with 7-amino-3-(2-furanylcarbonylthiomethyl)-3-cephem-4-carboxylic acid of formula (III) in the presence of a mixture of an water-immescible inert organic solvent and water and in the presence of a organic base and isolating ceftiofur of formula (1) substantially free of impurities by, d) adding water to the reaction mixture and selectively partitioning the impurities in the organic phase and ceftiofur (I) in the form of a salt with the base in the aqueous phase, e) acidifying the aqueous phase containing ceftiofur (I) in the form of a salt with the base in the presence of a mixture containing a water-miscible and a water-immiscible organic solvent and in the presence of a saturated aqueous solution of an alkali or alkaline earth containing salt, to partition ceftiofur (I) in the organic phase, and f) isolating ceftiofur (I) of high purity and substantially free of impurities by evaporation of the organic solvent or precipitation by addition of a co-solvent. | 08-28-2008 |