Patents by Inventor Alok Srivastava

Alok Srivastava 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).

  • Patent number: 7767008
    Abstract: A vapor/liquid separation apparatus for treating a flow of vapor/liquid mixtures of hydrocarbons and steam comprises a vertical drum with a side inlet to introduce hydrocarbon/steam mixtures, an overhead vapor outlet, and a lower section in communication with a cylindrical boot of less diameter than the drum, the boot comprising sufficient gas-liquid contact surface, e.g., that provided by one or more sheds, baffles and/or distillation trays, to provide at least a partial theoretical distillation stage, and a lower portion for receiving liquid from the drum, a lower outlet for removing the liquid, and an inlet for introducing a stripping gas such as steam, hydrogen, light crackable hydrocarbon, and/or methane, below the distillation tray and preferably above the level of liquid in the boot.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: August 3, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James M. Frye, David Beattie, Richard C. Stell, Subramanian Annamalai, Alok Srivastava
  • Patent number: 7744743
    Abstract: A feedstream comprising tar is fed to a solvent deasphalter wherein it is contacted with a deasphalting solvent or fluid to produce a composition comprising a mixture or slurry of solvent containing a soluble portion of the tar, and a heavy tar fraction comprising the insoluble portion of the tar. These fractions may be separated in the deasphalter apparatus, such as by gravity settling wherein the heavy tar fraction is taken off as bottoms, and the solvent-soluble fraction taken as overflow or overheads with the solvent. The overflow or overheads is sent to a solvent recovery unit, such as a distillation apparatus, wherein solvent is recovered as overheads and a deasphalted tar fraction is taken off as a sidestream or bottoms. The solvent or a portion thereof, recovered as overheads, may be then be recycled to the solvent deasphalter, or in a preferred embodiment, at least a portion of the solvent is steam cracked to produce a product comprising light olefins.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: June 29, 2010
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: James N. McCoy, Paul F. Keusenkothen, Alok Srivastava
  • Patent number: 7708968
    Abstract: Crystalline scintillator materials comprising nano-scale particles of metal oxides, metal oxyhalides and metal oxysulfides are provided. The nano-scale particles are less than 100 nm in size. Methods are provided for preparing the particles. In one method, used to form oxyhalides and oxysulfides, metal salts are dissolved in water, and then precipitated out as fine particles using an aqueous base. After the particles are separated from the solution, they are annealed under a flow of a water saturated hydrogen anion gas, such as HCl or H2S, to form the crystalline scintillator particles. The other methods take advantage of the characteristics of microemulsion solutions to control droplet size, and, thus, the particle size of the final nano-particles. For example, in one method, a first micro-emulsion containing metal salts if formed. The first micro-emulsion is mixed with an aqueous base in a second micro-emulsion to form the final nano-scale particles.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: May 4, 2010
    Assignee: General Electric Company
    Inventors: Brent Allen Clothier, Sergio Paulo Martins Loureiro, Alok Srivastava, Stanley John Stoklosa, Steven Jude Duclos, Venkat Subramaniam Venkataramani
  • Publication number: 20100103781
    Abstract: Techniques are described herein for synchronizing cluster time. According to one technique, a master node is appointed in a cluster. Other “slave” nodes periodically synchronize their clocks with the master node. To synchronize its clock with the master node, a slave node sends a timestamped message to the master node, which also timestamps the message and sends the message back to the slave node, which then timestamps the message again. Based on the timestamps, the slave node is able to determine the difference between the master node's clock's time and slave node's clock's time, compensating for the message travel time between master node and slave node. Depending on various circumstances, and based on the determined difference, the slave node adjusts its clock so that the time indicated by the slave node's clock at least begins to approach more closely the time indicated by the master node's clock.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 29, 2010
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Vikram Rai, Alok Srivastava, Angelo Pruscino, Sameer Joshi
  • Publication number: 20100026650
    Abstract: Method and system for emphasizing objects is disclosed. The method includes receiving input characters from a user of the electronic device and predicting one or more characters based on the input characters. Moreover, the method includes calculating a distance of each predicted character from a last input character. The method also includes calculating an emphasizing priority of each predicted character based on priority of each predicted character and the distance of each predicted character from the last input character. The method further includes emphasizing the predicted characters based on the emphasizing priority of the predicted characters.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 4, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Alok SRIVASTAVA, Amitabh Ranjan, Anand Prakash Yadav, Jayanth Kumar Jaya Kumar, Malur Nagendra Srivatsa Bharadwaj, Sushanth Bangalore Ramesh, Tarun Pangti, Vaibhav Negi
  • Patent number: 7648844
    Abstract: Methods for detecting analytes in a sample are provided. A plurality of particles, each of which is coated with a capture agent having an affinity for the analyte, is combined with the sample to form a plurality of analyte-particle complexes. The system also includes a transport arrangement for transporting the sample to the sensor surface, and a magnetic field inducing structure constructed and arranged to establish a magnetic field at and adjacent to the sensor surface. The resonant sensor produces a signal corresponding to an amount of analyte-particle complexes that are bound to the sensor surface.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: January 19, 2010
    Assignee: BioScale, Inc.
    Inventors: Alok Srivastava, Wayne U. Wang, Michael Miller, Brett P. Masters, Mark Lundstrom
  • Publication number: 20090309482
    Abstract: A fluorescent lamp including a phosphor layer including (Y1-x-yGdx)AlO3:EU3+y, wherein 0.4?x?0.7 and 0?y?0.1, and at least one of each of a green and blue emitting phosphor. The resulting lamp will exhibit a white light having a color rendering index of preferably 90 or higher with a correlated color temperature of from 2500 to 10000 Kelvin. The use of (Y1-x-yGdx)AlO3:Eu3+y in phosphor blends of lamps results in high CRI light sources with increased stability and acceptable lumen maintenance over, the course of the lamp life.
    Type: Application
    Filed: June 11, 2008
    Publication date: December 17, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Alok Srivastava, Holly Comanzo, Venkatesan Manivannan
  • Patent number: 7625502
    Abstract: Crystalline scintillator materials comprising nano-scale particles of metal halides are provided. The nano-scale particles are less than 100 nm in size. Methods are provided for preparing the particles. In these methods, ionic liquids are used in place of water to allow precipitation of the final product. In one method, the metal precursors and halide salts are dissolved in separate ionic liquids to form solutions, which are then combined to form the nano-crystalline end product. In the other methods, micro-emulsions are formed using ionic liquids to control particle size.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: December 1, 2009
    Assignee: General Electric Company
    Inventors: Brent Allen Clothier, Sergio Paulo Martins Loureiro, Alok Srivastava, Venkat Subramaniam Venkataramani
  • Patent number: 7625480
    Abstract: The invention relates to a method for processing asphaltene-containing feed to a pyrolysis furnace by raising the final boiling point of the feed/steam mixture to the pyrolysis furnace to ensure fouling occurs lower in the convection section where the mixture of air and steam can burn off fouling deposits during decoking operations. The final boiling point of the feed stream is increased by adding a heavy essentially asphaltene-free high boiling point hydrocarbon to the feed stream before the feed stream enters the convection section of the pyrolysis furnace, whereby said fouling occurs lower in the convection section.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: December 1, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David Beattie, Richard Charles Stell, James N. McCoy, Bryan Daniel McVicker, Paul F. Keusenkothen, Alok Srivastava, David Bleckinger
  • Patent number: 7615381
    Abstract: Methods for detecting estradiol and metabolites thereof in a sample are provided. A plurality of particles, each of which is coated with a capture agent having an affinity for estradiol, is combined with the sample to form a plurality of estradiol-particle complexes. The system also includes a transport arrangement for transporting the sample and/or particles to the sensor surface, and optionally a magnetic field inducing structure constructed and arranged to establish a magnetic field at and adjacent to the sensor surface. The resonant sensor produces a signal corresponding to an amount of estradiol-particle complexes that are bound to the sensor surface.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: November 10, 2009
    Assignee: BioScale, Inc.
    Inventors: Brett P. Masters, Michael Miller, Vishal K. Gulati, Mark Lundstrom, Alok Srivastava, Wayne U. Wang
  • Patent number: 7611908
    Abstract: Methods for therapeutic drug monitoring are provided. A plurality of particles, each of which is coated with a capture agent capable of binding a therapeutic drug of choice is combined with the sample to form a plurality of therapeutic drug-particle complexes. The system also includes a transport arrangement for transporting the sample and/or particles to the sensor surface, and optionally a magnetic field inducing structure constructed and arranged to establish a magnetic field at and adjacent to the sensor surface. The resonant sensor produces a signal corresponding to an amount of therapeutic drug-particle complexes that are bound to the sensor surface.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: November 3, 2009
    Assignee: BioScale, Inc.
    Inventors: Michael Miller, Brett P. Masters, Mark Lundstrom, Alok Srivastava, Wayne U. Wang
  • Publication number: 20090217282
    Abstract: A computer implemented CPU utilization prediction technique is provided. CPU utilization prediction is implemented described in continuous time as an auto-regressive process of the first order. The technique used the inherent autocorrelation between successive CPU measurements. A specific auto-regression equation for predicting CPU utilization is provided. CPU utilization prediction is used in a computer cluster environment. In an implementation, CPU utilization percentage values are used by a scheduler service to manage workload or the distribution of requests over a vast number of CPUs.
    Type: Application
    Filed: February 26, 2008
    Publication date: August 27, 2009
    Inventors: Vikram RAI, Alok Srivastava, Angelo Pruscino, Sameer Joshi, Sunil Kumar, Sriram Sankaran, Joy Mukherjee
  • Publication number: 20090193499
    Abstract: Apparatus, methods, and computer program products are disclosed that present a delegated-right to a delegation system by a service-application provisioned with the delegation system. The delegated-right enables the service-application to perform an operation/access on behalf of a delegator-user. The method then attempts to perform the operation/access.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 30, 2009
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Alok Srivastava, Rafiul Ahad
  • Publication number: 20090148856
    Abstract: Methods for therapeutic drug monitoring are provided. A plurality of particles, each of which is coated with a capture agent capable of binding a therapeutic drug of choice is combined with the sample to form a plurality of therapeutic drug-particle complexes. The system also includes a transport arrangement for transporting the sample and/or particles to the sensor surface, and optionally a magnetic field inducing structure constructed and arranged to establish a magnetic field at and adjacent to the sensor surface. The resonant sensor produces a signal corresponding to an amount of therapeutic drug-particle complexes that are bound to the sensor surface.
    Type: Application
    Filed: May 2, 2006
    Publication date: June 11, 2009
    Applicant: BioScale, Inc.
    Inventors: Michael Miller, Brett P. Masters, Mark Lundstrom, Alok Srivastava, Wayne U. Wang
  • Publication number: 20090148857
    Abstract: Methods for detecting analytes in a sample are provided. A plurality of particles, each of which is coated with a capture agent having an affinity for the analyte, is combined with the sample to form a plurality of analyte-particle complexes. The system also includes a transport arrangement for transporting the sample to the sensor surface, and a magnetic field inducing structure constructed and arranged to establish a magnetic field at and adjacent to the sensor surface. The resonant sensor produces a signal corresponding to an amount of analyte-particle complexes that are bound to the sensor surface.
    Type: Application
    Filed: May 2, 2006
    Publication date: June 11, 2009
    Applicant: BioScale, Inc.
    Inventors: Alok Srivastava, Wayne U. Wang, Michael Miller, Brett P. Masters, Mark Lundstrom
  • Publication number: 20090107887
    Abstract: A vapor/liquid separation apparatus for treating a flow of vapor/liquid mixtures of hydrocarbons and steam comprises a vertical drum with a side inlet to introduce hydrocarbon/steam mixtures, an overhead vapor outlet, and a lower section in communication with a cylindrical boot of less diameter than the drum, the boot comprising sufficient gas-liquid contact surface, e.g., that provided by one or more sheds, baffles and/or distillation trays, to provide at least a partial theoretical distillation stage, and a lower portion for receiving liquid from the drum, a lower outlet for removing the liquid, and an inlet for introducing a stripping gas such as steam, hydrogen, light crackable hydrocarbon, and/or methane, below the distillation tray and preferably above the level of liquid in the boot.
    Type: Application
    Filed: December 15, 2008
    Publication date: April 30, 2009
    Inventors: James M. Frye, David Beattie, Richard C. Stell, Subramanian Annamalai, Alok Srivastava
  • Patent number: 7496637
    Abstract: A syndicator for disseminating Web services and other resources from service and content providers to service consumers and for establishing and implementing subscription agreements specifying the terms upon which digital assets are provided to subscribers. A registration database stores a service description for each of a plurality of different Web services and other resources. Each stored service description contains an input processing specification, an output processing specification, and the specification of the business terms upon which the described service or resource is offered by its provider to subscribers. A subscription manager conducts a negotiation with a prospective subscriber and receives from the subscriber an acceptance of the business terms upon which a specified Web service or resource is offered to establish a subscription agreement. Event tracking records information describing the performance of each service on behalf of each subscriber to perform subscription accounting functions.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: February 24, 2009
    Assignee: Oracle International Corp.
    Inventors: Cheng Han, Paul Lin, Marco Carrer, Wai-Kwong (Sam) Lee, Alok Srivastava
  • Patent number: 7481871
    Abstract: A vapor/liquid separation apparatus for treating a flow of vapor/liquid mixtures of hydrocarbons and steam comprises a vertical drum with a side inlet to introduce hydrocarbon/steam mixtures, an overhead vapor outlet, and a lower section in communication with a cylindrical boot of less diameter than the drum, the boot comprising sufficient gas-liquid contact surface, e.g., that provided by one or more sheds, baffles and/or distillation trays, to provide at least a partial theoretical distillation stage, and a lower portion for receiving liquid from the drum, a lower outlet for removing the liquid, and an inlet for introducing a stripping gas, such as steam, hydrogen, light crackable hydrocarbon, and/or methane, below the distillation tray and preferably above the level of liquid in the boot.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: January 27, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James M. Frye, David Beattie, Richard C. Stell, Subramanian Annamalai, Alok Srivastava
  • Patent number: 7472349
    Abstract: A dynamic services infrastructure accepts data describing data resources and stores that data in a relational database from which it may be retrieved to handle service requests issued by application programs. The database stores Service Definition data which is initially supplied in the form of XML Service Descriptor documents which are then mapped into the database from which they may be accessed. Each Service Definition includes an input specification which identifies the address of a resource as well as the nature of the input data to be supplied to the resource with the request, and further includes an output specification which describes the nature of the output information which is supplied by the resource in response to the request.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: December 30, 2008
    Assignee: Oracle International Corporation
    Inventors: Alok Srivastava, Marco Carrer, Paul I. Lin
  • Publication number: 20080281938
    Abstract: Selecting a master node in a multi-node computer system is described. Each node of the multi-node computer system selects a timeout value (e.g., randomly). Each node starts a timer, which is set to expire at the selected timeout value of its corresponding node. The node with the timer that expires earliest broadcasts an election message to the other nodes of the multi-node computer system, which informs the other nodes that the broadcasting node is a candidate for mastership over the multi-node computer system. The other nodes respond to the election message upon receiving it. In the absence of a refusal message from one or more of the other nodes, the candidate is established as master node in the multi-node computer system and wherein the other nodes function as slave nodes therein.
    Type: Application
    Filed: May 9, 2007
    Publication date: November 13, 2008
    Applicant: Oracle International Corporation
    Inventors: Vikram Rai, Alok Srivastava, Juan Tellez