Patents by Inventor Chandra Kumar
Chandra Kumar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110180082Abstract: The invention provides a method for making a fuel element for a smoking article including the steps of mixing a metal-containing catalyst precursor with a filler material or graphite or a combination thereof to form a pre-treated fuel element component; optionally calcining the pre-treated fuel element component in order to convert the catalyst precursor to a catalytic metal compound; after the optional calcining step, combining the pre-treated fuel element component with a carbonaceous material and a binder to produce a fuel element composition; and forming the fuel element composition into a fuel element adapted for use in a smoking article. Examples of metal-containing catalyst precursors include iron nitrate, copper nitrate, cerium nitrate, cerium ammonium nitrate, manganese nitrate, magnesium nitrate, and zinc nitrate. Fuel elements treated according to the invention, and smoking articles including such fuel elements, are also provided.Type: ApplicationFiled: March 16, 2011Publication date: July 28, 2011Inventors: Chandra Kumar Banerjee, Stephen Benson Sears, Susan K. Pike
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Publication number: 20100296083Abstract: Detection and identification of minute quantities of condensed or solid state materials with significantly improved performance over the present state-of-the-art, comprises illuminating a small target particle with an appropriate laser radiation at a wavelength that is strongly absorbed by the target. The resulting temperature rise is observed by monitoring the increased blackbody radiation from the sample. An unambiguous determination of the target compound or the target material composition can be achieved through the use of a tunable laser that generates an absorption fingerprint of the target.Type: ApplicationFiled: December 9, 2008Publication date: November 25, 2010Inventors: Chandra Kumar Naranbhai Patel, Anadi Mukherjee
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Publication number: 20100267053Abstract: The present invention provides, in part, AKT3 polypeptides and methods of use thereof along with nucleic acids encoding the polypeptides. For example, methods for screening for AKT3 inhibitors are provided herein.Type: ApplicationFiled: May 21, 2010Publication date: October 21, 2010Applicant: Schering CorporationInventors: ANDREW J. PRONGAY, Thierry O. Fischmann, Chandra Kumar, Vincent S. Madison, Joseph E. Myers, Paul Reichert, Rosalinda Syto, William T. Windsor, Li Xiao, Todd W. Mayhood
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Patent number: 7776589Abstract: The present invention provides, in part, AKT3 polypeptides and methods of use thereof along with nucleic acids encoding the polypeptides. For example, methods for screening for AKT3 inhibitors are provided herein.Type: GrantFiled: August 30, 2007Date of Patent: August 17, 2010Assignee: Schering CorporationInventors: Andrew J. Prongay, Thierry O. Fischmann, Chandra Kumar, Vincent S. Madison, Joseph E. Myers, Paul Reichert, Rosalinda Syto, William T. Windsor, Li Xiao, Todd W. Mayhood
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Publication number: 20100167733Abstract: A system and methods for allowing an enterprise management system to provision and configure a WWAN communication device on a managed network without incurring the tedious task of manually entering all the configuration information for every WWAN communication device on the enterprise management system. A dedicated communication link is provided with a standard communication protocol so each WWAN device can communicate with a carrier server and have the carrier server acts as a validation point and communication bridge to the enterprise management server until the WWAN communication device is configured for management by the enterprise management server.Type: ApplicationFiled: December 30, 2008Publication date: July 1, 2010Applicant: SYMBOL TECHNOLOGIES, INC.Inventors: Chandra Kumar, Chandrika Krishnamurthy, Praveen Prabhakara
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Patent number: 7734264Abstract: An access terminal (102) reacquires a system frame number (SFN) when a difference between a continuous counter elapsed time (220) and a calculated elapsed time (222) exceeds a threshold. The continuous counter elapsed time (220) is generated by a continuous counter (122) remaining active during a sleep state of the access terminal (102) and the calculated elapsed time (222) is based on a SFN derived from a counter value generated by a discontinuous counter (124) that is deactivated during the sleep state. In one aspect, the continuous counter (122) may be clocked by a continuous clock (118) during a sleep mode and the discontinuous counter (124) may be clocked by a faster clock (120) that is deactivated during the sleep mode. During reactivation after the sleep mode, the discontinuous counter (120) is set, at the counter set time, to a reset counter value (126) corresponding to an SFN indicated by the continuous counter (122).Type: GrantFiled: August 29, 2006Date of Patent: June 8, 2010Assignee: QUALCOMM IncorporatedInventors: Anil S. Rao, Chandra Kumar, Gurdeep Singh, Kiran Chikkappa, Messay Amerga, Maheedhar Gollamudi, Sudarshan Keshava
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Publication number: 20100122708Abstract: The invention provides a modified adsorbent material impregnated with a metal oxide, which can be used in a filter element adapted for use in a smoking article. The modified adsorbent material exhibits increased filtration efficiency with respect to certain gas phase species of mainstream cigarette smoke. Exemplary adsorbent materials that can be modified according to the invention include activated carbon, molecular sieves, clays, ion exchange resins, activated aluminas, silica gels, meerschaum, and mixtures thereof. One example of a metal oxide is cerium oxide. Impregnation with a metal oxide can be accomplished by directly treating the adsorbent with a metal oxide or impregnating the adsorbent with a metal oxide precursor, such as cerium nitrate, followed by calcining the impregnated material to convert the precursor to the desired metal oxide. Methods of forming the modified adsorbent material and smoking article filters incorporating the modified adsorbent material are also provided.Type: ApplicationFiled: November 20, 2008Publication date: May 20, 2010Inventors: Stephen Benson Sears, Chandra Kumar Banerjee
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Publication number: 20100125039Abstract: The invention provides a method of increasing the mesopore volume of a porous activated carbon, comprising coating a porous activated carbon with a metal oxide or metal oxide precursor to form a treated activated carbon; and calcining the treated activated carbon, in a dry atmosphere, for a time and at a temperature sufficient to increase the mesopore volume of the treated activated carbon. The invention also provides an activated carbon having a total mesopore volume of at least about 0.10 cc/g and less than about 0.25 cc/g, and a percentage of mesopore volume per total pore volume of at least about 15% and less than about 35%. Activated carbon modified according to the invention, cigarette filters incorporating such activated carbon, and smoking articles made with such filters are included in the invention.Type: ApplicationFiled: November 20, 2008Publication date: May 20, 2010Inventors: Chandra Kumar Banerjee, Stephen Benson Sears, Thaddeus Jude Jackson
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Publication number: 20100065075Abstract: The invention provides a method for making a fuel element for a smoking article comprising forming a combustible carbonaceous material into a fuel element adapted for use in a smoking article; incorporating a metal-containing catalyst precursor into the fuel element or onto the surface thereof to form a treated fuel element, the incorporating step occurring before, during, or after said forming step; and optionally heating or irradiating the treated fuel element at a temperature and for a time sufficient to convert the catalyst precursor to a catalytic metal compound. Examples of metal-containing catalyst precursors include iron nitrate, copper nitrate, cerium nitrate, cerium ammonium nitrate, manganese nitrate, magnesium nitrate, and zinc nitrate. Fuel elements treated according to the invention, and smoking articles including such fuel elements, are also provided.Type: ApplicationFiled: September 18, 2008Publication date: March 18, 2010Inventors: Chandra Kumar Banerjee, Stephen Benson Sears
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Publication number: 20080056422Abstract: An access terminal (102) reacquires a system frame number (SFN) when a difference between a continuous counter elapsed time (220) and a calculated elapsed time (222) exceeds a threshold. The continuous counter elapsed time (220) is generated by a continuous counter (122) remaining active during a sleep state of the access terminal (102) and the calculated elapsed time (222) is based on a SFN derived from a counter value generated by a discontinuous counter (124) that is deactivated during the sleep state. In one aspect, the continuous counter (122) may be clocked by a continuous clock (118) during a sleep mode and the discontinuous counter (124) may be clocked by a faster clock (120) that is deactivated during the sleep mode. During reactivation after the sleep mode, the discontinuous counter (120) is set, at the counter set time, to a reset counter value (126) corresponding to an SFN indicated by the continuous counter (122).Type: ApplicationFiled: August 29, 2006Publication date: March 6, 2008Inventors: Anil S. Rao, Chandra Kumar, Gurdeep Singh, Kiran Chikkappa, Messay Amerga, Maheedhar Gollamudi, Sudarshan Keshava
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Patent number: 7290549Abstract: A non-combustion, chemical heat source includes a heat chamber having a closed end and an open end. The heat chamber includes an apertured heat cartridge disposed at the open end of the chamber, an abutment disposed at the closed end of the chamber, an activating solution, a frangible seal separating the activating solution and the heat cartridge. The heat cartridge includes metallic agents that may come in a variety of configurations. The heat source is activated when the heat cartridge is pushed through and breaks the frangible seal allowing contact between the metallic agents and the activating solution. The heat cartridge includes an aperture in the bottom of the cartridge and absorbent paper surrounding the metallic agents, both of which control the transfer of the activating solution into the metallic agents to cause the chemical reaction. The heat sources may be incorporated into smoking articles and may also be used to heat foods or beverages, in hand warmers, and to heat equipment or materials.Type: GrantFiled: July 22, 2003Date of Patent: November 6, 2007Assignee: R. J. Reynolds Tobacco CompanyInventors: Chandra Kumar Banerjee, Sheila Lynnette Cash, Thomas Leeroy Gentry, Joanne Naomi Taylor, Patty Ferguson Turner
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Patent number: 7237558Abstract: A filter element incorporating an adsorbent material is provided. The filter element may comprise a first section of filter material and a second section of filter material spaced apart to form a compartment therebetween. The compartment may be filled with one or more adsorbents or the compartment may be divided into two regions, wherein one compartment region is filled with an adsorbent and the other compartment region is either filled with an ion-exchange resin or remains empty. The section of filter material adjacent to the tobacco rod may include one or more channels therethrough for passaging smoke directly from the tobacco rod into the adsorbent-filled compartment. The mouth end section of filter material may contain a breakable capsule, wherein the breakable capsule is filled with a flavoring agent capable of altering the taste characteristics of mainstream smoke.Type: GrantFiled: September 30, 2003Date of Patent: July 3, 2007Assignee: R. J. Reynolds Tobacco CompanyInventors: Melissa Ann Clark, Evon Llewellyn Crooks, Paul Eugene Braxton, Chandra Kumar Banerjee, Sharon Pitts Dunlap, Timothy Brian Nestor
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Publication number: 20070045301Abstract: This invention relates to an automatic cooking system for automating the cooking process. The said system cooks all kind of possible dishes of any type, composition, and shape. It is entirely an automatic method of cooking. The only requirement for the users would be to bring the food items from the market and load in to ACS. And they just have to choose or instruct which food they want to get cooked. The system makes it possible to get the required dish, amount and quality. It also makes it possible to change the composition of the cooked food for the required content, taste and quality. Also it allows multiple dishes to be cooked at the same time. The user can instruct ACS remotely through a communication link and the food will be cooked ready at the specified time.Type: ApplicationFiled: May 23, 2003Publication date: March 1, 2007Inventor: Doddabasava Girish Chandra Kumar
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Publication number: 20040173229Abstract: The present invention provides smoking articles comprising ultrafine particles. In an embodiment, a combustible material component of a smoking article may comprise ultrafine particles. In other embodiments, ultrafine particles are incorporated into a smoking article in proximity to a combustible material component. The present invention also provides methods for altering smoke chemistry.Type: ApplicationFiled: March 5, 2003Publication date: September 9, 2004Inventors: Evon Llewellyn Crooks, Stephen Benson Sears, Stephen Keith Cole, Chandra Kumar Banerjee, Joanne Naomi Taylor
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Publication number: 20040134631Abstract: The present invention provides wrapping materials suitable for use with smoking articles, the wrapping materials comprising ultrafine particles. The present invention is described with reference to a cigarette having a wrapping material comprising ultrafine particles. The ultrafine particles may be distributed in regions throughout the wrapping material in the form of patterns including longitudinal or circumferential bands.Type: ApplicationFiled: January 15, 2003Publication date: July 15, 2004Inventors: Evon Llewellyn Crooks, Stephen Benson Sears, Stephen Keith Cole, Chandra Kumar Banerjee
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Patent number: 6378528Abstract: An improved substrate for use in smoking articles is produced by infusing aerosol forming material into tobacco. The infusion can take place in one or multiple steps. Preferably, about 10% to about 40% by weight of aerosol former, such as glycerin is infused into strip tobacco at elevated temperatures. The tobacco containing the aerosol former may then be dried, equilibrated to ambient conditions and/or blended with tobacco which does not have added aerosol former. Preferably the resulting material is again infused with an additional about 5% to about 15% by weight of aerosol former, at elevated temperatures. The new substrate material, and the method for making it, result in a substrate which has reduced migration of aerosol former and substantially improved manufacturing characteristics.Type: GrantFiled: September 22, 1999Date of Patent: April 30, 2002Assignee: R.J. Reynolds Tobacco CompanyInventors: Dwayne William Beeson, Gary Roger Shelar, Chandra Kumar Banerjee, Billy Tyrone Conner, Randall Allison Hoots
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Patent number: 5885769Abstract: Transformed cell lines containing a reporter gene operatively linked to a genetic control element that is responsive to growth factor-stimulated cell proliferation and/or oncogene-mediated neoplastic transformation are provided. Also provided are methods for using such transformed cell lines to screen for growth factor antagonists and/or antineoplastic agents.Type: GrantFiled: July 24, 1991Date of Patent: March 23, 1999Assignee: Schering CorporationInventor: Chanakanti Chandra Kumar
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Patent number: 5839449Abstract: A cigarette smoking article achieves very low levels of CO and other gas phase components by means of substantial air dilution, but has an acceptable pressure drop and sufficient delivery of particulate matter to provide a flavorful smoke. The filter has two sections, an upstream section which has substantially no pressure drop thereacross and a downstream section which provides substantially all the pressure drop of the filter. Dilution air is admitted to the upstream section of the filter to mix with mainstream smoke before it passes through the downstream section of the filter and thereby reduce the CO and gas phase levels in the smoke.Type: GrantFiled: January 29, 1996Date of Patent: November 24, 1998Assignee: R.J. Reynolds Tobacco CompanyInventors: Chandra Kumar Banerjee, Timothy Brian Nestor, Jeffery Scott Gentry, Elbert Curtis Jones, Jr., Roger Grady Hayworth, Joanne Naomi Taylor
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Patent number: 5718250Abstract: A cigarette having an improved carbon-bearing filter. A cigarette is provided with a smokable rod attached to a filter element having a region of carbon-bearing cellulose acetate tow surrounding a substantially impermeable member in the form of a hollow plastic tube crimped at the upstream end. As a result, the carbon-bearing region transitions from a circular cross-section to an annular cross-section. A plurality of circumferentially arranged holes are provided in the filter to permit dilution of the smoke passing through the filter. The resulting filter element provides reduction in gas phase components of smoke, dilution by ambient air and acceptable drawing characteristics.Type: GrantFiled: October 7, 1994Date of Patent: February 17, 1998Assignee: R. J. Reynolds Tobacco CompanyInventors: Chandra Kumar Banerjee, Karen Marie Womble, Joanne Naomi Taylor
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Patent number: 4095122Abstract: The invention relates to a high-power tunable infrared source employing a four-photon mixing process, with three input lasers, in which process the output power is resonantly enhanced by exciton states in the conversion medium.Type: GrantFiled: August 4, 1977Date of Patent: June 13, 1978Assignee: Bell Telephone Laboratories, IncorporatedInventors: Theodoar Charlouis Damen, Erich Gornik, Van-Tran Nguyen, Chandra Kumar Naranbhai Patel