Patents by Inventor Ramkumar Krishnan

Ramkumar Krishnan 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).

  • Publication number: 20170047757
    Abstract: An electrochemical cell system and a process for operating the same, the system having at least two fuel electrodes for receiving electrodeposited metal fuel; at least one oxidant electrode spaced apart from the fuel electrode; at least one charging electrode; an ionically conductive medium communicating the electrodes of the electrochemical cell system for conducting ions to support electrochemical reactions at the fuel, oxidant, and charging electrodes; and, one or more controllers configured to operate the cell system in discharging and charging modes and monitor a state of charge for each fuel electrode. The controllers may assign each fuel electrode in a discharging unit having a state-of-charge meeting a predetermined depletion criteria from the discharging unit to the charging unit, and each fuel electrode in the charging unit having a state-of-charge meeting a predetermined loading criteria from the charging unit to the discharging unit.
    Type: Application
    Filed: October 28, 2016
    Publication date: February 16, 2017
    Inventors: Cody A. Friesen, Joel Hayes, Sergey Puzhaev, Ramkumar Krishnan, Todd Trimble
  • Patent number: 9552280
    Abstract: Methods, systems, and computer-readable media to generate a user interface (UI) to analyze a complex event processing (CEP) query are disclosed. A particular method includes receiving data representing an event flow associated with execution of a CEP query. The CEP query includes a plurality of operators. A UI including a graph is generated. The graph includes a plurality of nodes. Each node of the graph corresponds to an operator of the CEP query, and each edge of the graph corresponds to a stream between operators of the CEP query. The method includes receiving an input identifying a particular node of the graph, where the particular node corresponds to a particular operator of the CEP query. In response to the input, an operator-specific output associated with at least one event processed by the particular operator is displayed.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: January 24, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ramkumar Krishnan, Tihomir Tarnavski, Sebastien Peray, Ivo José Garcia dos Santos, Olivier Nano, Marcel Tilly
  • Patent number: 9542256
    Abstract: An analysis module is configured to receive data associated with an event flow. The data is received from a first analysis module (e.g., in a stack of analysis modules) or from the event flow. The analysis module is configured to execute an analysis operation on the data to generate a result. The analysis module can output the result to a second analysis module (e.g., in the stack of analysis modules) or to a user interface.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: January 10, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Olivier Nano, Ivo Jose Garcia dos Santos, Tihomir Tarnavski, Sebastien Peray, Marcel Tilly, Ramkumar Krishnan
  • Publication number: 20160367054
    Abstract: The invention is directed to a hand operated device for storing, measuring and dispensing of powder or granular materials, with effectively simplified structure and reduced number of parts, having a solid housing integrating material storage container with stationer parts of a dispenser, comprising: special compartments and sound damper, made of elastic porous material that makes work of the device quite and thus acceptable for users; a means for one touch assembly and disassembly of an inner space of the device where a dispenser is located; structural elements for dispensing a predetermined volume of the material or its fraction, including stopping means for reduction of length of working stroke of the dispensing mechanism; a means making the device reliable when it is used with materials including sticky particles; a means providing the device configured to delivery more then one material stored in one device, including more then one material transporting mechanisms inside the dispenser; and structural elem
    Type: Application
    Filed: June 16, 2015
    Publication date: December 22, 2016
    Inventors: Yury Sherman, Michael Sherman, Ilya Alexandrov, Ramkumar Krishnan
  • Publication number: 20160344078
    Abstract: An electrochemical cell system is configured to utilize an oxidant reduction electrode module containing an oxidant reduction electrode mounted to a housing to form a gaseous oxidant space therein that is immersed into the ionically conductive medium. A fuel electrode is spaced from the oxidant reduction electrode, such that the ionically conductive medium may conduct ions between the fuel and oxidant reduction electrodes to support electrochemical reactions at the fuel and oxidant reduction electrodes. A gaseous oxidant channel extending through the gaseous oxidant space provides a supply of oxidant to the oxidant reduction electrode, such that the fuel electrode and the oxidant reduction electrode are configured to, during discharge, oxidize the metal fuel at the fuel electrode and reduce the oxidant at the oxidant reduction electrode, to generate a discharge potential difference therebetween for application to a load.
    Type: Application
    Filed: August 3, 2016
    Publication date: November 24, 2016
    Inventors: Cody Friesen, Ramkumar Krishnan, Michael Mihalka, Grant Friesen, Andrew Goodfellow
  • Patent number: 9484587
    Abstract: An electrochemical cell system and a process for operating the same, the system having at least two fuel electrodes for receiving electrodeposited metal fuel; at least one oxidant electrode spaced apart from the fuel electrode; at least one charging electrode; an ionically conductive medium communicating the electrodes of the electrochemical cell system for conducting ions to support electrochemical reactions at the fuel, oxidant, and charging electrodes; and, one or more controllers configured to operate the cell system in discharging and charging modes and monitor a state of charge for each fuel electrode. The controllers may assign each fuel electrode in a discharging unit having a state-of-charge meeting a predetermined depletion criteria from the discharging unit to the charging unit, and each fuel electrode in the charging unit having a state-of-charge meeting a predetermined loading criteria from the charging unit to the discharging unit.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: November 1, 2016
    Assignee: FLUIDIC, INC.
    Inventors: Cody A. Friesen, Joel Hayes, Sergey Puzhaev, Ramkumar Krishnan, Todd Trimble
  • Publication number: 20160293978
    Abstract: A system and methods for managing water content in one or more electrochemical cell is disclosed. The system includes a gas-phase conduit for receiving humid gas-phase associated with the electrochemical cell, a desiccator unit connected to each electrochemical cell and configured for extracting water from the humid gas-phase, a heater for selectively heating the desiccator unit, and a carbon dioxide (CO2) scrubber connected to the desiccator unit. The system may capture water vapor at the desiccator unit from a humid gas-phase exiting electrochemical cell, or release water vapor in desiccator unit, via actuation of heater, that is transported into the electrochemical cell depending on the mode of operation. The CO2 scrubber may also be used to capture water vapor, based on the mode of operation.
    Type: Application
    Filed: March 22, 2016
    Publication date: October 6, 2016
    Inventors: Ramkumar Krishnan, Joel Hayes, Grant Friesen, Shawn Fink
  • Publication number: 20160276723
    Abstract: Provided is a rechargeable electrochemical cell system for generating electrical current using a fuel and an oxidant. The system includes a plurality of electrochemical cells. A controller is configured to apply an electrical current between charging electrode(s) and a fuel electrode with the charging electrode(s) functioning as an anode and the fuel electrode functioning as a cathode, such that reducible metal fuel ions in the ionically conductive medium are reduced and electrodeposited as metal fuel in oxidizable form on the fuel electrode. The controller may selectively apply current to a charging electrode and third electrode between fuel electrodes of separate cells to increase uniformity of the metal fuel being electrodeposited on the fuel electrode. The controller controls a number of switches to apply current to the electrodes and select different modes for the system. Also provided are methods for charging and discharging an electrochemical cell system, and selecting different modes.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 22, 2016
    Inventors: Ramkumar Krishnan, Cody Friesen, Joel Hayes, Todd Trimble, Grant Friesen
  • Patent number: 9444105
    Abstract: An electrochemical cell system is configured to utilize an oxidant reduction electrode module containing an oxidant reduction electrode mounted to a housing to form a gaseous oxidant space therein that is immersed into the ionically conductive medium. A fuel electrode is spaced from the oxidant reduction electrode, such that the ionically conductive medium may conduct ions between the fuel and oxidant reduction electrodes to support electrochemical reactions at the fuel and oxidant reduction electrodes. A gaseous oxidant channel extending through the gaseous oxidant space provides a supply of oxidant to the oxidant reduction electrode, such that the fuel electrode and the oxidant reduction electrode are configured to, during discharge, oxidize the metal fuel at the fuel electrode and reduce the oxidant at the oxidant reduction electrode, to generate a discharge potential difference therebetween for application to a load.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: September 13, 2016
    Assignee: FLUIDIC, INC.
    Inventors: Cody A. Friesen, Ramkumar Krishnan, Michael Mihalka, Grant Friesen, Andrew Goodfellow
  • Publication number: 20160218380
    Abstract: The present disclosure relates to an electrochemical cell comprising a fuel electrode for oxidizing a fuel, an oxidant electrode for reducing an oxidant, and an ionically conductive medium for conducting ions between the fuel and oxidant electrodes to support electrochemical reactions at the fuel and oxidant electrodes. The ionically conductive medium comprises at least one active additive for enhancing (controlling the rate, overpotential and/or the reaction sites for) at least one electrochemical reaction within the cell. The cell further comprises an additive medium in contact with the ionically conductive medium and containing the at least one active additive capable of corroding or dissolving in the ionically conductive medium. The additive medium and/or casing is configured to release the active additive to the ionically conductive medium as a concentration of the active additive in the ionically conductive medium is depleted during operation of the cell.
    Type: Application
    Filed: January 26, 2016
    Publication date: July 28, 2016
    Inventors: Todd Trimble, Ramkumar Krishnan, Sergey Puzhaev, Grant Friesen
  • Publication number: 20160156082
    Abstract: The present invention relates to a metal-air electrochemical cell with a high energy efficiency mode.
    Type: Application
    Filed: January 12, 2016
    Publication date: June 2, 2016
    Inventors: Cody A. Friesen, Ramkumar Krishnan, Todd Trimble, Joel Hayes
  • Patent number: 9353817
    Abstract: An isolation system includes a platform, a plurality of isolators for the platform electronically switchable between a soft mode of isolation resulting in a first natural frequency and a stiff mode of isolation resulting in a second natural frequency, and a controller responsive to a signal representing the frequency of a machine on the platform and configured to switch the isolator to the stiff mode of operation when the frequency of the machine approaches or reaches, the first natural frequency to avoid resonance magnification, and otherwise switch the isolation to the soft mode of operation.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: May 31, 2016
    Assignee: Kinematic Systems, Inc.
    Inventors: Darren Chao, Hamid Shaidani, Ramkumar Krishnan
  • Publication number: 20160064789
    Abstract: An electrochemical cell includes a fuel electrode configured to operate as an anode to oxidize a fuel when connected to a load. The cell also includes an oxidant electrode configured to operate as a cathode to reduce oxygen when connected to the load. The fuel electrode comprises a plurality of scaffolded electrode bodies. The present invention relates to an electrochemical cell system and method of resetting the electrochemical cell by applying a charge (i.e. voltage or current) to the cell to drive oxidation of the fuel, wherein the fuel electrode operates as an anode, and the second cell operates as a cathode, removing uneven distributions of fuel that may cause premature shorting of the electrode bodies to improve capacity, energy stored, and cell efficiency.
    Type: Application
    Filed: November 9, 2015
    Publication date: March 3, 2016
    Inventors: Cody A. Friesen, Ramkumar Krishnan, Sergey Puzhaev, Todd Trimble
  • Publication number: 20160064740
    Abstract: An electrochemical cell system is configured to utilize an ionically conductive medium flowing through a plurality of electrochemical cells. One or more gas vents are provided along a flow path for the ionically conductive medium, so as to permit gasses that evolve in the ionically conductive medium during charging or discharging to vent outside the cell system, while constraining the ionically conductive medium within the flow path of the electrochemical cell system.
    Type: Application
    Filed: November 9, 2015
    Publication date: March 3, 2016
    Inventors: Cody A. Friesen, Ramkumar Krishnan, Grant Friesen, Todd Trimble, Michael Mihalka, Andrew Goodfellow
  • Patent number: 9269996
    Abstract: An electrochemical cell system is configured to utilize an ionically conductive liquid flowing through a plurality of electrochemical cells. One or more hydrophilic filters for venting of gas from the cells are provided along a flow path for the ionically conductive liquid, so as to permit gasses that evolve in the ionically conductive liquid during charging or discharging to vent outside the cell system, while constraining the ionically conductive liquid within the flow path of the electrochemical cell system.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: February 23, 2016
    Assignee: FLUIDIC, INC.
    Inventors: Cody A. Friesen, Ramkumar Krishnan, Grant Friesen, Joel R. Hayes
  • Patent number: 9269995
    Abstract: An electrochemical cell includes a fuel electrode configured to operate as an anode to consume a fuel when the fuel electrode and an associated cathode are connected to a load. An ionically conductive medium either present or flowing through the electrochemical cell is configured to conduct ions and participate in electrochemical reactions between the anode and the cathode. The cell further includes a catch tray containing catalyst material to induce the ionization of precipitates of fuel and/or fuel additives that may separate in solid form from the fuel electrode. The catch tray may be positioned to prevent a congestion of the precipitates in the ionically conductive medium, or the waste of electrically disconnected fuel and/or additives.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: February 23, 2016
    Assignee: FLUIDIC, INC.
    Inventors: Cody A. Friesen, Ramkumar Krishnan, Grant Friesen
  • Patent number: 9214830
    Abstract: An electrochemical cell includes a fuel electrode configured to operate as an anode to oxidize a fuel when connected to a load. The cell also includes an oxidant electrode configured to operate as a cathode to reduce oxygen when connected to the load. The fuel electrode comprises a plurality of scaffolded electrode bodies. The present invention relates to an electrochemical cell system and method of resetting the electrochemical cell by applying a charge (i.e. voltage or current) to the cell to drive oxidation of the fuel, wherein the fuel electrode operates as an anode, and the second cell operates as a cathode, removing uneven distributions of fuel that may cause premature shorting of the electrode bodies to improve capacity, energy stored, and cell efficiency.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: December 15, 2015
    Assignee: FLUIDIC, INC.
    Inventors: Cody A. Friesen, Ramkumar Krishnan, Sergey Puzhaev, Todd Trimble
  • Patent number: 9214708
    Abstract: An electrochemical cell system is configured to utilize an ionically conductive medium flowing through a plurality of electrochemical cells. One or more gas vents are provided along a flow path for the ionically conductive medium, so as to permit gasses that evolve in the ionically conductive medium during charging or discharging to vent outside the cell system, while constraining the ionically conductive medium within the flow path of the electrochemical cell system.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: December 15, 2015
    Assignee: FLUIDIC, INC.
    Inventors: Cody A Friesen, Ramkumar Krishnan, Grant Friesen, Todd Trimble, Michael Mihalka, Andrew Goodfellow
  • Patent number: 9178207
    Abstract: One aspect of the present invention provides an electrochemical cell system comprising at least one electrochemical cell configured to be selectively connected to a load to discharge the cell by generating electrical current using a fuel and an oxidant. The electrochemical cell system may alternatively be connected to a power supply to recharge the cell. The electrochemical cell system comprises a plurality of electrodes and electrode bodies therein. The electrochemical cell system further comprises a switching system configured to permit progressive movement of the anodes used for charging each electrochemical cell, maintaining a minimum distance from a progressively moving cathode that is the site of fuel growth.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: November 3, 2015
    Assignee: FLUIDIC, INC.
    Inventors: Cody A. Friesen, Ramkumar Krishnan, Todd Trimble, Sergey Puzhaev
  • Publication number: 20150311746
    Abstract: An electrochemical cell includes a fuel electrode configured to operate as an anode to oxidize a fuel when connected to a load. The cell also includes an oxidant electrode configured to operate as a cathode to reduce oxygen when connected to the load. The fuel electrode comprises a plurality of scaffolded electrode bodies. The present invention relates to an electrochemical cell system and method of resetting the electrochemical cell by applying a charge (i.e. voltage or current) to the cell to drive oxidation of the fuel, wherein the fuel electrode operates as an anode, and the second cell operates as a cathode, removing uneven distributions of fuel that may cause premature shorting of the electrode bodies to improve capacity, energy stored, and cell efficiency.
    Type: Application
    Filed: July 1, 2015
    Publication date: October 29, 2015
    Inventors: Cody A. Friesen, Ramkumar Krishnan, Sergey Puzhaev, Todd Trimble