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Biswas, IN

Amit Biswas, Navi Mumbai IN

Patent application numberDescriptionPublished
20100280176POLYCARBONATE COMPOSITION COMPRISING NANOMATERIALS - A method of preparing a polycarbonate nanocomposite comprising forming a reactant mixture comprising a nanomaterial, a solvent, a dihydroxy compound and an activated carbonate; and polymerizing the dihydroxy compound and the activated carbonate in the presence of the solvent to form the polycarbonate nanocomposite is disclosed. Also disclosed are polycarbonate nanocomposites prepared in accordance with this method, and thermoplastic compositions comprising the polycarbonate nanocomposites. Also disclosed are polycarbonate compositions comprising the nanomaterial.11-04-2010

Arnab Biswas, Calcutta IN

Patent application numberDescriptionPublished
20100274739Using Commercial Share of Wallet To Rate Investments - Commercial size of spending wallet (“CSoSW”) is the total business spend of a business including cash but excluding bartered items. Commercial share of wallet (“CSoW”) is the portion of the spending wallet that is captured by a particular financial company. A modeling approach utilizes various data sources to provide outputs that describe a company's spend capacity. A mutual fund rating company can use this CSoW/CSoSW modeling approach to predict the performance of funds that invest in a particular industry or sector. In addition, since mutual funds often provide guidelines for selecting stocks, rating companies can use this modeling approach to predict the performance of companies in a fund's portfolio.10-28-2010
20100312717Using Commercial Share of Wallet in Private Equity Investments - Commercial size of spending wallet (“CSoSW”) is the total business spend of a business including cash but excluding bartered items. Commercial share of wallet (“CSoW”) is the portion of the spending wallet that is captured by a particular financial company. A modeling approach utilizes various data sources to provide outputs that describe a company's spend capacity. Private equity firms and other investors of small businesses can use the CSoW/CSoSW modeling approach to more accurately evaluate small and privately held companies, both during investment and for evaluating prospective investments. Over-the-counter securities trading systems can also use this modeling approach to provide more accurate information and/or rankings of listed companies to their customers.12-09-2010
20110035333Using Commercial Share of Wallet To Rate Investments - Commercial size of spending wallet (“CSoSW”) is the total business spend of a business including cash but excluding bartered items. Commercial share of wallet (“CSoW”) is the portion of the spending wallet that is captured by a particular financial company. A modeling approach utilizes various data sources to provide outputs that describe a company's spend capacity. A mutual fund rating company can use this CSoW/CSoSW modeling approach to predict the performance of funds that invest in a particular industry or sector. In addition, since mutual funds often provide guidelines for selecting stocks, rating companies can use this modeling approach to predict the performance of companies in a fund's portfolio.02-10-2011
20110258142Using Commercial Share of Wallet To Rate Investments - Commercial size of spending wallet (“CSoSW”) is the total business spend of a business including cash but excluding bartered items. Commercial share of wallet (“CSoW”) is the portion of the spending wallet that is captured by a particular financial company. A modeling approach utilizes various data sources to provide outputs that describe a company's spend capacity. A mutual fund rating company can use this CSoW/CSoSW modeling approach to predict the performance of funds that invest in a particular industry or sector. In addition, since mutual funds often provide guidelines for selecting stocks, rating companies can use this modeling approach to predict the performance of companies in a fund's portfolio.10-20-2011
20110295768Using Commercial Share of Wallet in Private Equity Investments - Commercial size of spending wallet (“CSoSW”) is the total business spend of a business including cash but excluding bartered items. Commercial share of wallet (“CSoW”) is the portion of the spending wallet that is captured by a particular financial company. A modeling approach utilizes various data sources to provide outputs that describe a company's spend capacity. Private equity firms and other investors of small businesses can use the CSoW/CSoSW modeling approach to more accurately evaluate small and privately held companies, both during investment and for evaluating prospective investments. Over-the-counter securities trading systems can also use this modeling approach to provide more accurate information and/or rankings of listed companies to their customers.12-01-2011

Patent applications by Arnab Biswas, Calcutta IN

Ashok Biswas, Mumbai IN

Patent application numberDescriptionPublished
20110020641TAMPER RESISTANT SECURITY SEALING TAPE AND THE PROCESS OF MANUFACTURING THE SAME - A tamper resistant security sealing tape comprising four or more layers and the method of manufacturing the same. The said tape once stuck properly can not be removed and flakes in bits and pieces. The tape has a fragile base substrate which is a cast polymeric film, a layer of pressure sensitive adhesive on one side of the base substrate, a polymeric film strip which is partially laminated on the other side of the base substrate using pressure sensitive adhesive, a release liner protecting the base substrate adhesive, and optionally an indicia or logo printed on the said polymeric strip. The base substrate is of very low breaking strength and pressure sensitive adhesive is of very high tack and peel strength even on low energy surfaces and at low temperatures. The tape softens and melts at high temperatures and dissolves and gives tacky solution when in contact with solvents.01-27-2011

Maloyesh Mathuresh Biswas, Mumbai IN

Patent application numberDescriptionPublished
20090221833Polymorphic Form of Lercanidipine Hydrochloride and Process for the Preparation Thereof - Processes for the purification of lercanidipine hydrochloride are provided which uses a binary system of an alcohol-containing solvent such as methanol and an aliphatic ester-containing solvent such as isopropyl acetate. Processes for the preparation of substantially amorphous lercanidipine hydrochloride are also provided. Also provided is lercanidipine hydrochloride substantially in polymorph form V.09-03-2009

Nabendu Biswas, West Bengal IN

Patent application numberDescriptionPublished
20110142969EXTRACT OF PIPER BETEL LEAVES FOR THE TREATMENT OF HUMAN MALIGNANCIES BY INDUCING OXIDATIVE STRESS - This invention relates to method of treating human malignancies of different origin that are sensitive to oxidative stress by administering effective amount of extract of 06-16-2011

Pinakpani Biswas, Jamshedpur IN

Patent application numberDescriptionPublished
20100307054Development of a Techno-Economic Process for Organo Refining of Coal - An improved organo-refining process to produce low ash clean coal from high ash coal, comprising: mixing coal, solvent and a co-solvent to produce a slurry; feeding the slurry to a reactor by pumping; extracting a coal-solvent mixture from the reactor; feeding the extracted mixture to a flasher unit; recovering about 30% of the solvent from the flashing unit; feeding the remaining heavy material to an evaporator; extracting about 60% of solvent from the evaporator; discharging the residue from the evaporator to a precipitator having water which produces a coal slurry; filtering the slurry in a rotary drum; collecting the super clean coal as a residue and feeding the filtrate into a distillation unit; and separating the water and the organic material in the filtrate to recover at least 7 to 8% of the remaining solvent.12-09-2010
20110179702Method of Recovery of Organic Solvents Required in Refining of Coal - A method of recovery of organic solvents required in the refining of coal comprising: mixing solvent, co-solvent and coal to form a slurry; thermally treating the slurry under pressure and high temperature to form a coal-extract; passing the coal-extract through a membrane under high pressure in an ultra filtration unit to achieve recovery of a major part of the solvent; contacting the remaining thick clarified liquid from the membrane with water to obtain precipitated coal in a slurry with a mixture of water and organic solvent; feeding the slurry to a filter to get clean coal of very low ash content as a residue and a mixture of water and organic solvent as a filtrate; distilling the filtrate to separate the balance of the organic solvent from the water. The application of a membrane for filtration minimizes the heat requirement to establish economy.07-28-2011

Sanjib Biswas, Hyderabad IN

Patent application numberDescriptionPublished
20080320081SERVICE COMPONENTIZATION AND COMPOSITION ARCHITECTURE - An architecture for componentizing portions of a collaborative or software as a service (SaaS) environment is provided such that users and/or developers leveraging such environments need not initialize and load the entire environment. Rather services are discovered and selectable so applications can be implemented to utilize a portion of the environment where another portion is not required for the access desired. Similarly, thinner versions of a collaborative or SaaS environments can be implemented to provide easy and efficient access to a portion of the service such that processing power and other burdens are removed from the collaboration or SaaS server and respective clients.12-25-2008

Satyjeet B. Biswas, Pune IN

Patent application numberDescriptionPublished
20110046416PROCESS FOR PREPARATION OF BENZPHETAMINE AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS - The present invention provides a simple method for preparation of benzphetamine and its acid addition salt comprising reaction of methamphetamine hydrochloride of formula (III) with benzyl chloride and treating the isolated benzphetamine of formula (II) with an acid dissolved in an organic solvent to provide benzphetamine acid addition salt, more specifically, benzphetamine hydrochloride of formula (I).02-24-2011

Sudeep Biswas, Delhi IN

Patent application numberDescriptionPublished
20080282023Restoring storage devices based on flash memories and related circuit, system, and method - A solution for restoring operation of a storage device based on a flash memory is proposed. The storage device emulates a logical memory space (including a plurality of logical blocks each one having a plurality of logical sectors), which is mapped on a physical memory space of the flash memory (including a plurality of physical blocks each one having a plurality of physical sectors for storing different versions of the logical sectors). A corresponding method starts by detecting a plurality of conflicting physical blocks for a corrupted logical block (resulting from a breakdown of the storage device). The method continues by determining a plurality of validity indexes (indicative of the number of last versions of the logical sectors of the corrupted logical block that are stored in the conflicting physical blocks). One ore more of the conflicting physical blocks are selected according to the validity indexes. The selected conflicting physical blocks are then associated with the corrupted logical block. At the end, each one of the non-selected conflicting physical blocks is discarded.11-13-2008
20080282024Management of erase operations in storage devices based on flash memories - A method of freeing physical memory space in an electrically alterable memory that includes a plurality of physical memory blocks includes a plurality of physical memory pages. Each physical memory block may be individually erased as a whole, and which memory is used to emulate a random access logical memory space including a plurality of logical memory sectors by storing updated versions of a logical memory sector data into different physical memory pages. The method includes causing a most recent version of multiple versions of logical memory sector data, stored in physical pages of at least one physical memory block, to be copied into an unused physical memory block, marking the at least one physical memory block, and when the electrically alterable memory is idle, erasing the marked physical memory block.11-13-2008
20080282025Wear leveling in storage devices based on flash memories and related circuit, system, and method - A wear leveling solution is proposed for use in a storage device based on a flash memory. The flash memory includes a plurality of physical blocks, which are adapted to be erased individually. A corresponding method starts with the step for erasing one of the physical blocks. One of the physical blocks being allocated for storing data is selected; this operation is performed in response to the reaching of a threshold by an indication of a difference between a number of erasures of the erased physical block and a number of erasures of the selected physical block. At least the data of the selected physical block being valid is copied into the erased physical block. The selected physical block is then erased.11-13-2008
20110087832WEAR LEVELING IN STORAGE DEVICES BASED ON FLASH MEMORIES AND RELATED CIRCUIT, SYSTEM, AND METHOD - A wear leveling solution is proposed for use in a storage device based on a flash memory. The flash memory includes a plurality of physical blocks, which are adapted to be erased individually. A corresponding method starts with the step for erasing one of the physical blocks. One of the physical blocks being allocated for storing data is selected; this operation is performed in response to the reaching of a threshold by an indication of a difference between a number of erasures of the erased physical block and a number of erasures of the selected physical block. At least the data of the selected physical block being valid is copied into the erased physical block. The selected physical block is then erased.04-14-2011
20110289266GARBAGE COLLECTION IN STORAGE DEVICES BASED ON FLASH MEMORIES - A solution for managing a storage device based on a flash memory is proposed. A corresponding method starts with the step for mapping a logical memory space of the storage device (including a plurality of logical blocks) on a physical memory space of the flash memory (including a plurality of physical blocks, which are adapted to be erased individually). The physical blocks include a set of first physical blocks (corresponding to the logical blocks) and a set of second—or spare—physical blocks (for replacing each bad physical block that is unusable). The method continues by detecting each bad physical block. Each bad physical block is then discarded, so to prevent using the bad physical block for mapping the logical memory space.11-24-2011

Sudeep Biswas, Mayur Viner IN

Patent application numberDescriptionPublished
20080282045Garbage collection in storage devices based on flash memories - A solution for managing a storage device based on a flash memory is proposed. A corresponding method starts with the step for mapping a logical memory space of the storage device (including a plurality of logical blocks) on a physical memory space of the flash memory (including a plurality of physical blocks, which are adapted to be erased individually). The physical blocks include a set of first physical blocks (corresponding to the logical blocks) and a set of second—or spare—physical blocks (for replacing each bad physical block that is unusable). The method continues by detecting each bad physical block. Each bad physical block is then discarded, so to prevent using the bad physical block for mapping the logical memory space.11-13-2008

Sujit Kumar Biswas, West Bengal IN

Patent application numberDescriptionPublished
20120007459Rotating Electric Machine for Generating a Constant Frequency AC Power Supply from a Variable Speed Primemover - Disclosed is a rotating electric machine for generating a constant frequency AC power supply from a variable speed primemover including: a stator wound with two sets of isolated polyphase windings having the same number of poles, with the polyphase windings located at about 90 degree displacement in space between them, and a rotor wound with two sets of isolated polyphase windings having the same number of poles and placed at about 90 degree displacement in space between them. The rotor has two winding terminals interconnected either internally or externally to the machine with mutually reverse phase sequence. When one set of stator winding is energized by an AC power supply of a given frequency and voltage, and the rotor shaft is rotated by an external means in the same direction as that of the rotating field of the stator.01-12-2012

Sujoy Biswas, Nadia IN

Patent application numberDescriptionPublished
20090275760PROCESS FOR THE PREPARATION OF PURE DULOXETINE HYDROCHLORIDE - The present invention relates to a process for the preparation of pure Duloxetine hydrochloride. The present invention further relates to duloxetine hydrochloride substantially free of residual hydrochloric acid.11-05-2009
20110224435PROCESS FOR PREPARATION OF AMORPHOUS LOPINAVIR - The present invention relates to a process for preparation of amorphous lopinavir, which is HIV protease inhibitor of Formula (I). Using agitated film drying.09-15-2011

Sujoy Biswas, West Bengal IN

Patent application numberDescriptionPublished
20100261775POLYMORPHIC FORM OF DULOXETINE HYDROCHLORIDE - The present invention relates to Form I of duloxetine hydrochloride and its preparation.10-14-2010
20100280093PROCESS FOR THE PREPARATION ENANTIOMERICALLY PURE SALTS OF N-METHYL-3-(1-NAPHTHALENEOXY)-3-(2-THIENYL)PROPANAMINE - The present invention relates to duloxetine salts having enantiomeric purity of 98% or more and a process for such salts.11-04-2010

Tanusree Biswas, Calcutta IN

Patent application numberDescriptionPublished
20100068314HERBAL COMPOSITION FOR TREATING CD33+ ACUTE AND CHRONIC MYELOID LEUKEMIA AND A METHOD THEREOF - A method of treating CD33+ acute and chronic myeloid leukemia in animals including humans, using fraction nos. 1 and 9 obtained from water:methanol fraction by column chromatography, with ratio of water and methanol ranging between 1:5 to 5:1, wherein said water:methanol fraction is obtained from the polar extract of 03-18-2010

Patent applications by Tanusree Biswas, Calcutta IN