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).
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Patent number: 12110306Abstract: 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: GrantFiled: January 29, 2020Date of Patent: October 8, 2024Assignee: Dow Global Technologies LLCInventors: Christopher S. Letko, Ravi B. Shankar, Harshad M. Shah, Weijun Zhou
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Publication number: 20240174828Abstract: 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: ApplicationFiled: February 7, 2024Publication date: May 30, 2024Inventors: WENYI HUANG, SHARI KRAM, MARK RICKARD, RAVI B. SHANKAR
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Patent number: 11939445Abstract: 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: GrantFiled: November 1, 2021Date of Patent: March 26, 2024Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, LLCInventors: Wenyi Huang, Shari Kram, Mark Rickard, Ravi B Shankar
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Publication number: 20230337651Abstract: 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: ApplicationFiled: May 26, 2023Publication date: October 26, 2023Inventors: 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
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Patent number: 11716983Abstract: 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: GrantFiled: April 9, 2021Date of Patent: August 8, 2023Assignee: CORTEVA AGRISCIENCE LLCInventors: 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
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Publication number: 20220169813Abstract: 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: ApplicationFiled: November 1, 2021Publication date: June 2, 2022Inventors: Wenyi HUANG, Shari Kram, Mark Rickard, Ravi B. Shankar
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Publication number: 20220119427Abstract: 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: ApplicationFiled: January 29, 2020Publication date: April 21, 2022Applicant: Dow Global Technologies LLCInventors: Christopher S. Letko, Ravi B. Shankar, Harshad M. Shah, Weijun Zhou
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Publication number: 20210227818Abstract: 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: ApplicationFiled: April 9, 2021Publication date: July 29, 2021Inventors: 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
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Patent number: 11000024Abstract: 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: GrantFiled: March 7, 2019Date of Patent: May 11, 2021Assignee: Dow AgroSciences LLCInventors: 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
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Publication number: 20190200595Abstract: 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: ApplicationFiled: March 7, 2019Publication date: July 4, 2019Inventors: 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
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Patent number: 10271534Abstract: 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: GrantFiled: May 21, 2018Date of Patent: April 30, 2019Assignee: Dow AgroSciences LLCInventors: 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
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Publication number: 20180332839Abstract: 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: ApplicationFiled: May 21, 2018Publication date: November 22, 2018Inventors: 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
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Patent number: 9738766Abstract: 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: GrantFiled: October 8, 2012Date of Patent: August 22, 2017Assignee: Dow Global Technologies LLCInventors: Ravi B. Shankar, Matthew Martin Yonkey, YuDong Qi, Nahrain E. Kamber
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Publication number: 20170187062Abstract: 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: ApplicationFiled: May 15, 2015Publication date: June 29, 2017Inventors: Lin Wang, Douglas A. Brune, Ravi B. Shankar, Matthew M. Yonkey
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Publication number: 20170187072Abstract: 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: ApplicationFiled: May 15, 2015Publication date: June 29, 2017Applicant: Dow Global Technologies LLCInventors: Lin Wang, Douglas A. Brune, Ravi B. Shankar, Matthew M. Yonkey
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Publication number: 20170187071Abstract: 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: ApplicationFiled: May 15, 2015Publication date: June 29, 2017Inventors: Lin Wang, Douglas A. Brune, Ravi B. Shankar, Matthew M. Yonkey
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Patent number: 9472813Abstract: 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: GrantFiled: December 13, 2011Date of Patent: October 18, 2016Assignee: Dow Global Technologies LLCInventors: Oktay Uzun, Dean M. Welsh, David R. Wilson, Ravi B. Shankar, David J. Brennan
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Patent number: 9353246Abstract: 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: GrantFiled: October 8, 2013Date of Patent: May 31, 2016Inventors: Ravi B. Shankar, Matthew M. Yonkey, Shana P. Bunker, Ted A. Morgan
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Publication number: 20150274915Abstract: 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: ApplicationFiled: October 8, 2012Publication date: October 1, 2015Applicant: Dow Global Technologies LLCInventors: Ravi B. Shankar, Matthew Martin Yonkey, YuDong Qi, Nahrain E. Kamber
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Patent number: 9147906Abstract: 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: GrantFiled: November 16, 2009Date of Patent: September 29, 2015Assignee: Dow Global Technologies LLCInventors: 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