Patents by Inventor Kishore K. Kar

Kishore K. Kar 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: 20190367862
    Abstract: A system for aerobic fermentation includes a vessel, an aeration system including a gas sparger fluidly coupled to the vessel to introduce a compressed gas to an internal volume of the vessel, and a recirculation loop fluidly coupled to an outlet of the vessel. The recirculation loop includes an eductor fluidly coupled to an oxygen-containing gas source, a static mixer downstream of the eductor, a heat exchanger downstream of the eductor, and a distributor downstream of the heat exchanger. The distributor is fluidly coupled to the vessel. The aeration system provides mixing and oxygen mass transfer to the fermentation composition in the vessel. The fermentation composition passes through the eductor, static mixer, heat exchanger, and distributor of the recirculation loop, and back into the vessel. Oxygen is transferred from an oxygen containing gas to the fermentation composition and heat is removed from the fermentation composition in the recirculation loop.
    Type: Application
    Filed: March 8, 2018
    Publication date: December 5, 2019
    Applicant: Dow Global Technologies LLC
    Inventors: Kishore K. Kar, Suraj S. Deshpande, James J. Pressler, Bianca Fernandes Martins, Iris Raquel Maia Tebeka, Devon C. Rosenfeld, John Richard Biggs
  • Publication number: 20180142182
    Abstract: Dispersions are prepared by dispersing a polymer precursor such as a polyol into a non-aqueous fluid. The resulting droplets of the polymer precursor is partially polymerized to produce liquid or partially gelled droplets, and then sized to a target particle size. The sized particles are then cured to form solid particles. The process allows for close control of particle size, allows for good control of temperature, and is amenable to batch, semi-continuous or even continuous operation. The resulting dispersions are useful as electrorheological fluids.
    Type: Application
    Filed: June 2, 2016
    Publication date: May 24, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: Kishore K. Kar, David J. Adrian, Daniel J. Arriola, Ravindra S. Dixit, Tobias Drogseth, Michael P. Staloch
  • Publication number: 20160304676
    Abstract: Disclosed is a process for making stable and consistent polymer formulations with desirable sensorial qualities.
    Type: Application
    Filed: December 15, 2014
    Publication date: October 20, 2016
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Daniel M. TRAUTH, Qichun WAN, Kishore K. KAR, Justin J. WALKER, Anthony NEUBAUER, David L. MALOTKY
  • Patent number: 9447201
    Abstract: The present invention relates to a polymerization inhibitor composition and a method of inhibiting polymerization of distillable monomers in liquid and evaporated/condensed phases with the polymerization inhibitor composition. The polymerization inhibitor composition is useful for inhibiting polymerization of the distillable monomers during manufacture, purification (e.g., distillation), handling, and storage thereof.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: September 20, 2016
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Kishore K. Kar, Michael D. Cloeter, Olan Stanley Fruchey, Richard S. Harner, Krzysztof Matyjaszewski, Renaud Nicolay, Jaroslav Mosná{hacek over (c)}ek
  • Patent number: 9068782
    Abstract: The present invention relates to a tube-side sequentially pulsable-flow, shell-and-tube heat exchanger apparatus and a chemical processing system comprising and methods of heat exchange employing the same.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: June 30, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Kishore K. Kar, Richard F. Cope, Quan Yuan, Madan Somasi, Brian M. Morgan
  • Patent number: 8969498
    Abstract: The invention generally relates to a method of inhibiting polymerization of vinyl aryl monomers, a process for increasing number average molecular weight of a polystyrene, and to an inhibitor composition useful therein.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: March 3, 2015
    Assignees: Dow Global Technologies LLC, Carnegie Mellon University
    Inventors: Nathan T. Kendall, Kishore K. Kar, Mark H. McAdon, Krzysztof Matyjaszewski, Laura Mueller, Charles D. Dukes
  • Patent number: 8864880
    Abstract: Described is an apparatus useful for mechanically delaying formation of or breaking a pocket and a method of delaying formation of or breaking a gas pocket employing the apparatus.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: October 21, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Kishore K. Kar, Madan Somasi, Richard F. Cope, James J. Pressler, David J. Adrian
  • Publication number: 20140060329
    Abstract: Described is an apparatus useful for mechanically delaying formation of or breaking a pocket and a method of delaying formation of or breaking a gas pocket employing the apparatus.
    Type: Application
    Filed: April 10, 2012
    Publication date: March 6, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Kishore K. Kar, Madan Somasi, Richard F. Cope, James J. Pressler, David J. Adrian
  • Publication number: 20130158203
    Abstract: The invention generally relates to a method of inhibiting polymerization of vinyl aryl monomers, a process for increasing number average molecular weight of a polystyrene, and to an inhibitor composition useful therein.
    Type: Application
    Filed: July 27, 2011
    Publication date: June 20, 2013
    Applicants: CARNEGIE MELLON UNIVERSITY, DOW GLOBAL TECHNOLOGIES INC.
    Inventors: Nathan T. Kendall, Kishore K. Kar, Mark H. McAdon, Krzysztof Matyjaszewski, Laura Mueller, Charles D. Dukes
  • Publication number: 20110290635
    Abstract: The present invention relates to a polymerization inhibitor composition and a method of inhibiting polymerization of distillable monomers in liquid and evaporated/condensed phases with the polymerization inhibitor composition. The polymerization inhibitor composition is useful for inhibiting polymerization of the distillable monomers during manufacture, purification (e.g., distillation), handling, and storage thereof.
    Type: Application
    Filed: February 18, 2010
    Publication date: December 1, 2011
    Inventors: Kishore K. Kar, Michael D. Cloeter, Olan Stanley Fruchey, Richard S. Harner, Krzysztof Matyjaszewski, Renaud Nicolay, Jaroslav Mosnacek
  • Publication number: 20110220582
    Abstract: The present invention generally relates to a coalescer device and separation method employing the coalescer device for coalescing material comprising a dispersed liquid phase from an emulsion.
    Type: Application
    Filed: March 11, 2011
    Publication date: September 15, 2011
    Inventors: Kishore K. Kar, Madan Somasi, Richard F. Cope, Katherine E. Nies
  • Publication number: 20110144384
    Abstract: A liquid-gas phase reactor system including a slinger located in an upper section (headspace region) of a reaction vessel. The slinger comprises an upper horizontal surface including a plurality of vertically raised vanes extending radially outward along a curved path which effectively distribute liquid about the reactor vessel. A method for conducting an oxidation reaction using a liquid-gas phase reactor system is also disclosed. The disclosed reactor system and method have a broad range of applications but are particularly suited for the production of terephthalic acid.
    Type: Application
    Filed: September 20, 2007
    Publication date: June 16, 2011
    Inventors: Luciano Piras, Marzio Monagheddu, Andrea Gnagnetti, Kishore K. Kar
  • Patent number: 7946753
    Abstract: The present invention generally relates to a rotatable mixing device, a dynamic mixing apparatus, and a high throughput workflow system and dynamic mixing method employing the same.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: May 24, 2011
    Assignee: Dow Global Technologies LLC
    Inventors: Kishore K. Kar, Madan Somasi, Richard F. Cope
  • Publication number: 20110051548
    Abstract: The present invention generally relates to a rotatable mixing device, a dynamic mixing apparatus, and a high throughput workflow system and dynamic mixing method employing the same.
    Type: Application
    Filed: August 23, 2010
    Publication date: March 3, 2011
    Inventors: Kishore K. Kar, Madan Somasi, Richard F. Cope
  • Publication number: 20100243208
    Abstract: The present invention relates to a tube-side sequentially pulsable-flow, shell-and-tube heat exchanger apparatus and a chemical processing system comprising and methods of heat exchange employing the same.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 30, 2010
    Inventors: Kishore K. Kar, Richard F. Cope, Quan Yuan, Madan Somasi, Brian M. Morgan
  • Patent number: 6984753
    Abstract: A process for producing aromatic dicarboxylic acids by the oxidation of dimethylbenzenes wherein dimethylbenzenes are mixed with an oxygen containing gas, solvent and catalyst in a reactor and the reaction mixture is agitated with one or more asymmetric radial impellers in combination with at least one axial impeller.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: January 10, 2006
    Assignee: Dow Italia s.r.l.
    Inventors: Andreas Gnagnetti, Luciano Piras, Kishore K. Kar
  • Patent number: 6955461
    Abstract: The present invention is directed to a tickler impeller and agitation system for use in stirred slurry reactors and storage tanks. The tickler impeller when mounted on a shaft is effective for providing an inward and downward swirl in a slurry medium which directs solids suspended in the slurry towards the bottom of the tank and towards the shaft on which the impeller is mounted. Directing solids suspended in a slurry downwards and towards the center of the tank rather than pushing those solids away from the center reduces solid deposits on the side of the tank, facilitates draining of the tank, and reduces nozzle starving and pump starvation.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: October 18, 2005
    Assignee: Dow Global Technologies, Inc.
    Inventors: Kishore K. Kar, Richard F. Cope, Steve Sandor, Angela Pennington
  • Publication number: 20040145966
    Abstract: The present invention is directed to a tickler impeller and agitation system for use in stirred slurry reactors and storage tanks. The tickler impeller when mounted on a shaft is effective for providing an inward and downward swirl in a slurry medium which directs solids suspended in the slurry towards the bottom of the tank and towards the shaft on which the impeller is mounted. Directing solids suspended in a slurry downwards and towards the center of the tank rather than pushing those solids away from the center reduces solid deposits on the side of the tank, facilitates draining of the tank, and reduces nozzle starving and pump starvation.
    Type: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Applicant: DOW GLOBAL TECHNOLOGIES, INC.
    Inventors: Kishore K. Kar, Richard F. Cope, Steve Sandor, Angela Pennington
  • Publication number: 20040087814
    Abstract: The present invention relates to a process for producing aromatic dicarboxylic acids by the oxidation of dimethylbenzenes wherein the dimethylbenzenes are mixed with an oxygen containing gas, solvent and catalyst in a reactor, the improvement comprising agitating the reaction mixture with one or more asymmetric radial impellers in combination with at least one axial impeller.
    Type: Application
    Filed: September 2, 2003
    Publication date: May 6, 2004
    Inventors: Andreas Gnagnetti, Luciano Piras, Kishore K. Kar
  • Patent number: 5591503
    Abstract: A magnetic recording medium, comprising a substrate, a magnetic recording lamina and at least one sulfonamide wherein the at least one sulfonamide is present in an amount sufficient to provide desirable tribological properties. A process for lubricating magnetic recording media comprising applying at least one sulfonamide to a surface of the magnetic recording media or incorporating at least one sulfonamide into the lamina of the magnetic recording media.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: January 7, 1997
    Assignee: The Dow Chemical Company
    Inventors: R. Garth Pews, Ted A. Morgan, Kishore K. Kar