Patents by Inventor Ravi B. Shankar

Ravi B. Shankar 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: 11939445
    Abstract: A masterbatch composition suitable for use as a flame retardant in extruded polymer foams, and process for manufacturing the same, and extruded foams containing same; the composition comprising: (a) 20 to 40 parts by weight base resin comprising styrene homopolymer or copolymer; (b) 1 to 16 parts by weight acid scavenger comprising an epoxy-based compound; (c) 2 to 6 parts by weight antioxidant comprising an alkyl or aryl phosphite; and (d) 45 to 60 parts by weight flame retardant comprising a non-hexabromocyclododecane (HBCD) brominated polymer or copolymer, wherein the amounts of (a), (b), (c), and (d) total 100 parts by weight; and (e) 0.6 to 10 parts by weight of pH moderator, based on 100 parts of (a) base resin plus (e) water soluble pH moderator.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: March 26, 2024
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, LLC
    Inventors: Wenyi Huang, Shari Kram, Mark Rickard, Ravi B Shankar
  • Publication number: 20230337651
    Abstract: A device, system, and method of controlling pests are disclosed. A pest control device includes a sensor having a sensor cell and a controller. A surface of the sensor cell is coated with an agent that reacts with a targeted biochemical analyte secreted by pests. The controller is coupled to the sensor and is configured to receive sensor data from the sensor cell indicative of a rate of change in sensor mass detected on the surface of the sensor cell, determine whether the rate of change in the sensor mass based on the received sensor data exceeds a predefined threshold rate, and transmit a pest detection alert notification to a server in response to a determination that the rate of change exceeds the predetermined threshold rate.
    Type: Application
    Filed: May 26, 2023
    Publication date: October 26, 2023
    Inventors: Mark W. Beach, Andrey N. Soukhojak, Neil A. Spomer, Shane L. Mangold, Ravi B. Shankar, Sukrit Mukhopadhyay, Jeremy Chris P. Reyes, Bruce A. Jacobs, William L. Winniford, Ronda L. Hamm, Phillip J. Howard, Andrew J. Pasztor, Mary D. Evenson, Thomas G. Patterson, Natalie C. Giampietro
  • Patent number: 11716983
    Abstract: A device, system, and method of controlling pests are disclosed. A pest control device includes a sensor having a sensor cell and a controller. A surface of the sensor cell is coated with an agent that reacts with a targeted biochemical analyte secreted by pests. The controller is coupled to the sensor and is configured to receive sensor data from the sensor cell indicative of a rate of change in sensor mass detected on the surface of the sensor cell, determine whether the rate of change in the sensor mass based on the received sensor data exceeds a predefined threshold rate, and transmit a pest detection alert notification to a server in response to a determination that the rate of change exceeds the predetermined threshold rate.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: August 8, 2023
    Assignee: CORTEVA AGRISCIENCE LLC
    Inventors: Mark W. Beach, Andrey N Soukhojak, Neil A. Spomer, Shane L. Mangold, Ravi B. Shankar, Sukrit Mukhopadhyay, Jeremy Chris P. Reyes, Bruce A. Jacobs, William L. Winniford, Ronda L. Hamm, Phillip J. Howard, Andrew J. Pasztor, Mary D. Evenson, Thomas G. Patterson, Natalie C. Giampietro
  • Publication number: 20220169813
    Abstract: A masterbatch composition suitable for use as a flame retardant in extruded polymer foams, and process for manufacturing the same, and extruded foams containing same; the composition comprising: (a) 20 to 40 parts by weight base resin comprising styrene homopolymer or copolymer; (b) 1 to 16 parts by weight acid scavenger comprising an epoxy-based compound; (c) 2 to 6 parts by weight antioxidant comprising an alkyl or aryl phosphite; and (d) 45 to 60 parts by weight flame retardant comprising a non-hexabromocyclododecane (HBCD) brominated polymer or copolymer, wherein the amounts of (a), (b), (c), and (d) total 100 parts by weight; and (e) 0.6 to 10 parts by weight of pH moderator, based on 100 parts of (a) base resin plus (e) water soluble pH moderator.
    Type: Application
    Filed: November 1, 2021
    Publication date: June 2, 2022
    Inventors: Wenyi HUANG, Shari Kram, Mark Rickard, Ravi B. Shankar
  • Publication number: 20220119427
    Abstract: Embodiments of the present disclosure are directed towards ?-hydroxyphosphonate functionalized polyols and isocyanate reactive compositions that include the ?-hydroxyphosphonate functionalized polyol and a base polyol.
    Type: Application
    Filed: January 29, 2020
    Publication date: April 21, 2022
    Applicant: Dow Global Technologies LLC
    Inventors: Christopher S. Letko, Ravi B. Shankar, Harshad M. Shah, Weijun Zhou
  • Publication number: 20210227818
    Abstract: A device, system, and method of controlling pests are disclosed. A pest control device includes a sensor having a sensor cell and a controller. A surface of the sensor cell is coated with an agent that reacts with a targeted biochemical analyte secreted by pests. The controller is coupled to the sensor and is configured to receive sensor data from the sensor cell indicative of a rate of change in sensor mass detected on the surface of the sensor cell, determine whether the rate of change in the sensor mass based on the received sensor data exceeds a predefined threshold rate, and transmit a pest detection alert notification to a server in response to a determination that the rate of change exceeds the predetermined threshold rate.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 29, 2021
    Inventors: Mark W. Beach, Andrey N. Soukhojak, Neil A. Spomer, Shane L. Mangold, Ravi B. Shankar, Sukrit Mukhopadhyay, Jeremy Chris P. Reyes, Bruce A. Jacobs, William L. Winniford, Ronda L. Hamm, Phillip J. Howard, Andrew J. Pasztor, Mary D. Evenson, Thomas G. Patterson, Natalie C. Giampietro
  • Patent number: 11000024
    Abstract: A device, system, and method of controlling pests are disclosed. A pest control device includes a sensor having a sensor cell and a controller. A surface of the sensor cell is coated with an agent that reacts with a targeted biochemical analyte secreted by pests. The controller is coupled to the sensor and is configured to receive sensor data from the sensor cell indicative of a rate of change in sensor mass detected on the surface of the sensor cell, determine whether the rate of change in the sensor mass based on the received sensor data exceeds a predefined threshold rate, and transmit a pest detection alert notification to a server in response to a determination that the rate of change exceeds the predetermined threshold rate.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: May 11, 2021
    Assignee: Dow AgroSciences LLC
    Inventors: Mark W. Beach, Andrey N. Soukhojak, Neil A. Spomer, Shane L. Mangold, Ravi B. Shankar, Sukrit Mukhopadhyay, Jeremy Chris P. Reyes, Bruce A. Jacobs, William L. Winniford, Ronda L. Hamm, Phillip J. Howard, Andrew J. Pasztor, Jr., Mary D. Evenson, Thomas G. Patterson, Natalie C. Giampietro
  • Publication number: 20190200595
    Abstract: A device, system, and method of controlling pests are disclosed. A pest control device includes a sensor having a sensor cell and a controller. A surface of the sensor cell is coated with an agent that reacts with a targeted biochemical analyte secreted by pests. The controller is coupled to the sensor and is configured to receive sensor data from the sensor cell indicative of a rate of change in sensor mass detected on the surface of the sensor cell, determine whether the rate of change in the sensor mass based on the received sensor data exceeds a predefined threshold rate, and transmit a pest detection alert notification to a server in response to a determination that the rate of change exceeds the predetermined threshold rate.
    Type: Application
    Filed: March 7, 2019
    Publication date: July 4, 2019
    Inventors: Mark W. BEACH, Audrey N. SOUKHOJAK, Neil A. SPOMER, Shane L. MANGOLD, Ravi B. SHANKAR, Sukrit MUKHOPADHYAY, Jeremy Chris P. REYES, Bruce A. JACOBS, William L. WINNIFORD, Ronda L. HAMM, Phillip J. HOWARD, Andrew J. PASZTOR, Jr., Mary D. EVENSON, Thomas G. PATTERSON, Natalie C. GIAMPIETRO
  • Patent number: 10271534
    Abstract: A device, system, and method of controlling pests are disclosed. A pest control device includes a sensor having a sensor cell and a controller. A surface of the sensor cell is coated with an agent that reacts with a targeted biochemical analyte secreted by pests. The controller is coupled to the sensor and is configured to receive sensor data from the sensor cell indicative of a rate of change in sensor mass detected on the surface of the sensor cell, determine whether the rate of change in the sensor mass based on the received sensor data exceeds a predefined threshold rate, and transmit a pest detection alert notification to a server in response to a determination that the rate of change exceeds the predetermined threshold rate.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: April 30, 2019
    Assignee: Dow AgroSciences LLC
    Inventors: Mark W. Beach, Andrey N. Soukhojak, Neil A. Spomer, Shane L. Mangold, Ravi B. Shankar, Sukrit Mukhopadhyay, Jeremy Chris P. Reyes, Bruce A. Jacobs, William L. Winniford, Ronda L. Hamm, Phillip J. Howard, Andrew J. Pasztor, Jr., Mary D. Evenson, Thomas G. Patterson, Natalie C. Giampietro
  • Publication number: 20180332839
    Abstract: A device, system, and method of controlling pests are disclosed. A pest control device includes a sensor having a sensor cell and a controller. A surface of the sensor cell is coated with an agent that reacts with a targeted biochemical analyte secreted by pests. The controller is coupled to the sensor and is configured to receive sensor data from the sensor cell indicative of a rate of change in sensor mass detected on the surface of the sensor cell, determine whether the rate of change in the sensor mass based on the received sensor data exceeds a predefined threshold rate, and transmit a pest detection alert notification to a server in response to a determination that the rate of change exceeds the predetermined threshold rate.
    Type: Application
    Filed: May 21, 2018
    Publication date: November 22, 2018
    Inventors: Mark W. Beach, Andrey N. Soukhojak, Neil A. Spomer, Shane L. Mangold, Ravi B. Shankar, Sukrit Mukhopadhyay, Jeremy Chris P. Reyes, Bruce A. Jacobs, William L. Winniford, Ronda L. Hamm, Phillip J. Howard, Andrew J. Pasztor, Mary D. Evenson, Thomas G. Patterson
  • Patent number: 9738766
    Abstract: An organophosphorus compound useful in a phosphorus containing flame retardant and a flame retardant polyurethane foam, where the organophosphorus compound is shown in Formula (I) where Y is selected from the group consisting of an —OH group, an —NH2 group, an —NHR3 group, and an —SH group, where R3 is a monovalent hydrocarbyl group having 1 to 10 carbon atoms; R is a divalent hydrocarbyl group; X is a heteroatom group; and R1 and R2 are each independently a substituted or unsubstituted hydrocarbyl group, wherein R1 and R2 can be optionally joined to form a ring.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: August 22, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Ravi B. Shankar, Matthew Martin Yonkey, YuDong Qi, Nahrain E. Kamber
  • Publication number: 20170187062
    Abstract: A battery electrolyte solution contains a lithium salt dissolved in a solvent phase comprising at least 10% by weight of methyl (2,2,3,3-tetrafluoropropyl) carbonate. The solvent phase comprises optionally other solvent materials such as 4-fluoroethylene carbonate and other carbonate solvents. This battery electrolyte is highly stable even when used in batteries in which the cathode material has a high operating potential (such as 4.5V or more) relative to Li/Li+. Batteries containing this electrolyte solution therefore have excellent cycling stability.
    Type: Application
    Filed: May 15, 2015
    Publication date: June 29, 2017
    Inventors: Lin Wang, Douglas A. Brune, Ravi B. Shankar, Matthew M. Yonkey
  • Publication number: 20170187071
    Abstract: A battery electrolyte solution contains a lithium salt dissolved in a solvent phase comprising at least 10% by weight of ethyl (2,2,3,3-tetrafluoropropyl) carbonate. The solvent phase comprises optionally other solvent materials such as 4-fluoroethylene carbonate and either or both of diethyl carbonate and ethyl methyl carbonate. This battery electrolyte is highly stable even when used in batteries in which the cathode material has a high operating potential (such as 4.5V or more) relative to Li/Li+. Batteries containing this electrolyte solution therefore have excellent cycling stability.
    Type: Application
    Filed: May 15, 2015
    Publication date: June 29, 2017
    Inventors: Lin Wang, Douglas A. Brune, Ravi B. Shankar, Matthew M. Yonkey
  • Publication number: 20170187072
    Abstract: A battery electrolyte solution contains a lithium salt dissolved in a solvent phase comprising at least 10% by weight N of (2,2-difluoroethyl) ethyl carbonate. The solvent phase comprises optionally other solvent materials such as 4-fluoroethylene carbonate and other carbonate solvents. This battery electrolyte is highly stable even when used in batteries in which the cathode material has a high operating potential (such as 4.5V or more) relative to Li/Li+. Batteries containing this electrolyte solution therefore have excellent cycling stability.
    Type: Application
    Filed: May 15, 2015
    Publication date: June 29, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Lin Wang, Douglas A. Brune, Ravi B. Shankar, Matthew M. Yonkey
  • Patent number: 9472813
    Abstract: Battery electrolyte solutions contain certain ester solvents, a lithium salt and vinylene carbonate, vinyl ethylene carbonate or fluoroethylene carbonate. Batteries containing these solvents have excellent specific discharge capacities and reduced weight compared to batteries in which the electrolyte is based on ethylene carbonate.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: October 18, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Oktay Uzun, Dean M. Welsh, David R. Wilson, Ravi B. Shankar, David J. Brennan
  • Patent number: 9353246
    Abstract: Aluminum carboxylate salt having a formula of Al[OCO(CH2)nP(O)(OR1)(OR2)]3 where R1 and R2 are hydrocarbyl groups that can optionally be joined and n is independently an integer between one and four is useful for forming an article of manufacture comprising a polymer compounded together the aluminum carboxylate salt to form a flame retardant polymer article.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: May 31, 2016
    Inventors: Ravi B. Shankar, Matthew M. Yonkey, Shana P. Bunker, Ted A. Morgan
  • Publication number: 20150274915
    Abstract: An organophosphorus compound useful in a phosphorus containing flame retardant and a flame retardant polyurethane foam, where the organophosphorus compound is shown in Formula (I) where Y is selected from the group consisting of an —OH group, an —NH2 group, an —NHR3 group, and an —SH group, where R3 is a monovalent hydrocarbyl group having 1 to 10 carbon atoms; R is a divalent hydrocarbyl group; X is a heteroatom group; and R1 and R2 are each independently a substituted or unsubstituted hydrocarbyl group, wherein R1 and R2 can be optionally joined to form a ring.
    Type: Application
    Filed: October 8, 2012
    Publication date: October 1, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Ravi B. Shankar, Matthew Martin Yonkey, YuDong Qi, Nahrain E. Kamber
  • Patent number: 9147906
    Abstract: A battery electrolyte solution contains from 0.001 to 20% by weight of certain phosphorus-sulfur compounds. The phosphorus-sulfur compound performs effectively as a solid-electrolyte interphase (SEI) forming material. The phosphorus-sulfur compound has little adverse impact on the electrical properties of the battery, and in some cases actually improves battery performance. Batteries containing the electrolyte solution form robust and stable SEIs even when charged at high rates during initial formation cycles.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: September 29, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Houxiang Tang, William J. Kruper, Jr., Ravi B. Shankar, Deidre A. Strand, Peter M. Margl, Andrew J. Pasztor, Jr., David R. Wilson, Jeremy R. Stajdl
  • Publication number: 20150225546
    Abstract: Aluminum carboxylate salt having a formula of Al[OCO(CH2)nP(O)(OR1)(OR2)]3 where R1 and R2 are hydrocarbyl groups that can optionally be joined and n is independently an integer between one and four is useful for forming an article of manufacture comprising a polymer compounded together the aluminum carboxylate salt to form a flame retardant polymer article.
    Type: Application
    Filed: October 8, 2013
    Publication date: August 13, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Ravi B. Shankar, Matthew M. Yonkey, Shana P. Bunker, Ted A. Morgan
  • Patent number: 8574773
    Abstract: A battery electrolyte solution contains from 0.01 to 80% by weight of an aromatic phosphorus compound. The aromatic phosphorus compound provides increased thermal stability for the electrolyte, helping to reduce thermal degradation, thermal runaway reactions and the possibility of burning. The aromatic phosphorus compound has little adverse impact on the electrical properties of the battery, and in some cases actually improves battery performance.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: November 5, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: David R. Wilson, Ravi B. Shankar, Houxiang Tang, Andrew J. Pasztor, Jr., Peter M. Margl, William J. Kruper, Jr., Mark D. Newsham, Jing Jin, Matthew M. Yonkey, Deidre A. Strand, Thomas D. Gregory, Jamie L. Cohen, Jeremy R. Stajdl