Patents by Inventor Debashis Chakraborty

Debashis Chakraborty 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: 10504214
    Abstract: The present disclosure relates to systems, devices and methods for image presentation for vehicle driver assistance. In one embodiment, a method includes receiving image data representing an outside of a vehicle and enhancing the image data. Image enhancement can include inverting the image data, running a dehazing operation based on scene radiance, medium transmission and atmospheric light of the image data. The method may also include generating reconstructed image data from the enhanced image data by performing a sparse representation of the enhanced image data for denoising of the enhanced image data, and performing a learning operation to identify and enhance objects of interest in the enhanced image data with the sparse representation. The method also includes outputting the reconstructed image data to a display unit of the vehicle. Vehicle driver assist systems and devices are provided to enhance image data detected by vehicle cameras and wearable devices.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: December 10, 2019
    Assignee: Harman International Industries, Incorporated
    Inventors: Pranjal Chakraborty, Rajesh Biswal, Debashis Mukherjee
  • Patent number: 10189756
    Abstract: The present invention provides adiabatic plug flow reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors comprise one or more designs that minimize the production of by-products at a desired conversion.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: January 29, 2019
    Assignee: BLUE CUBE IP LLC
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Thomas U. Luebbe, Thomas J. Parsons, Avani Maulik Patel, Marcus Wobser
  • Patent number: 9988488
    Abstract: A catalysts for poly(lactide) synthesis having the structure of Formula I: wherein R1 and R2 is, independently, C1-C6 alkoxy, and R3 arylalkyl or substituted phenyl are disclosed. Method of synthesizing the catalysts and method of using the catalysts to prepare poly(lactides) and compositions comprising the catalyst are also disclosed.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: June 5, 2018
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
    Inventors: Debashis Chakraborty, Swarup Ghosh, Venkatachalam Ramkumar
  • Patent number: 9850421
    Abstract: The present disclosure includes a nonionic surfactant and a method of providing the nonionic surfactant, where the nonionic surfactant is soluble in carbon dioxide and is used as part of a dispersion for enhanced crude oil recovery. The nonionic surfactant can be part of an emulsion that includes carbon dioxide and a diluent.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: December 26, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Sayeed Abbas, Aaron W. Sanders, Debashis Chakraborty
  • Patent number: 9512049
    Abstract: Processes for the production of alkenes are provided. The processes make use of methane as a low cost starting material.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 6, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Max Markus Tirtowidjojo, Brien A. Stears, William J. Kruper, Jr., Kurt F. Hirsekorn, Debashis Chakraborty
  • Publication number: 20160347692
    Abstract: The present invention provides adiabatic plug flow reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors comprise one or more designs that minimize the production of by-products at a desired conversion.
    Type: Application
    Filed: July 7, 2016
    Publication date: December 1, 2016
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Thomas U. Luebbe, Thomas J. Parsons, Avani Maulik Patel, Marcus Wobser
  • Publication number: 20160053048
    Abstract: Catalysts for poly(lactide) synthesis are provided herein. Also provided are methods of synthesizing the catalysts, methods of using the catalysts to make poly(lactides), and compositions comprising the same.
    Type: Application
    Filed: March 3, 2014
    Publication date: February 25, 2016
    Applicant: Indian Institute of Technology Madras
    Inventors: Debashis CHAKRABORTY, Swarup GHOSH, VENKATACHALAM RAMKUMAR
  • Patent number: 8933280
    Abstract: The present invention provides continuous, gas phase, free radical processes for the production of chlorinated and/or fluorinated propenes or higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes, wherein wherein at least a portion of any intermediate boiler by-products generated by the process are removed from the process.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: January 13, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Max Markus Tirtowidjojo, Patrick Ho-Sing Au-Yeung, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt Frederick Hirsekorn, Manfred Kokott, William J. Kruper, Jr., Thomas Ulrich Luebbe, Holger Meeman, Shirley Shaw Sexton, Peter Wenzel, Marcus Wobser
  • Patent number: 8927792
    Abstract: Processes for the production of chlorinated and/or fluonnated propenes provide good product yield with advantageous impurity profiles in the crude product. Advantageously, the processes may be conducted at lower temperatures than 600° C., or less than 500° C., so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: January 6, 2015
    Assignee: Dow AgroSciences, LLC
    Inventors: Max M. Tirtowidjojo, William J. Kruper, Jr., Kurt F. Hirsekorn, Debashis Chakraborty
  • Patent number: 8926918
    Abstract: The present invention provides isothermal multitube reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors utilize a feed mixture inlet temperature at least 20° C. different from a desired reaction temperature.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: January 6, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Max Markus Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt Frederick Hirsekorn, Manfred Kokott, William J. Kruper, Jr., Thomas Ulrich Luebbe, Avani Maulik Patel, Shirley Shaw Sexton, Peter Wenzel, Marcus Wobser
  • Publication number: 20140336431
    Abstract: Processes for the production of alkenes are provided. The processes make use of methane as a low cost starting material.
    Type: Application
    Filed: December 21, 2012
    Publication date: November 13, 2014
    Inventors: Max Markus Tirtowidjojo, Brien Stears, William J. Kruper, JR., Kurt Frederick Hirsekorn, JR., Debashis Chakraborty
  • Publication number: 20140224484
    Abstract: The present disclosure includes a nonionic surfactant and a method of providing the nonionic surfactant, where the nonionic surfactant is soluble in carbon dioxide and is used as part of a dispersion for enhanced crude oil recovery. The nonionic surfactant can be part of an emulsion that includes carbon dioxide and a diluent.
    Type: Application
    Filed: September 20, 2012
    Publication date: August 14, 2014
    Applicant: DOW Global Technologies LLC
    Inventors: Sayeed Abbas, Aaron W. Sanders, Debashis Chakraborty
  • Publication number: 20140088329
    Abstract: Processes for the production of chlorinated and/or fluonnated propenes provide good product yield with advantageous impurity profiles in the crude product. Advantageously, the processes may be conducted at lower temperatures than 600° C., or less than 500° C., so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.
    Type: Application
    Filed: May 30, 2012
    Publication date: March 27, 2014
    Inventors: Max Tirtowidjojo, William J. Kruper, JR., Kurt F. Hirsekorn, Debashis Chakraborty
  • Publication number: 20140031595
    Abstract: The present invention provides continuous, gas phase, free radical processes for the production of chlorinated and/or fluorinated propenes or higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes, wherein wherein at least a portion of any intermediate boiler by-products generated by the process are removed from the process
    Type: Application
    Filed: October 4, 2013
    Publication date: January 30, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES, LLC
    Inventors: Max Markus Tirtowidjojo, Patrick Ho-Sing Au-Yeung, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt Frederick Hirsekorn, Manfred Kokott, William J. Kruper, JR., Thomas Ulrich Luebbe, Holger Meeman, Shirley Shaw Sexton, Peter Wenzel, Marcus Wobser
  • Publication number: 20140010741
    Abstract: The present invention provides isothermal multitube reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors utilize a feed mixture inlet temperature at least 20° C. different from a desired reaction temperature.
    Type: Application
    Filed: September 11, 2013
    Publication date: January 9, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES, LLC
    Inventors: Max Markus Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt Frederick Hirsekorn, Manfred Kokott, William J. Kruper, Thomas Ulrich Luebbe, Avani Maulik Patel, Shirley Shaw Sexton, Peter Wenzel, Marcus Wobser
  • Patent number: 8613899
    Abstract: An apparatus includes a manifold with a chamber for mixing multiple reactants. Gases are jetted into the manifold by a plurality of inlet injectors. The inlet injectors are arranged such that the gases passing into the manifold impinge on each other at a common point to form a mixture. The mixture passes through a plurality of holes in one side of the manifold into a deposition chamber where the mixture of gases impinges on additional gases at a common point to provide a reaction resulting in deposition of solid materials in the deposition chamber. The solid materials are free-standing.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: December 24, 2013
    Assignees: Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLC
    Inventors: Heather A. G. Stern, Vincent DiFilippo, Jitendra S. Goela, Michael A. Pickering, Hua Bai, Debashis Chakraborty, Hangyao Wang
  • Patent number: 8581012
    Abstract: The present invention provides continuous, gas phase, free radical processes for the production of chlorinated and/or fluorinated propenes or higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes, wherein wherein at least a portion of any intermediate boiler by-products generated by the process are removed from the process.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: November 12, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Max M. Tirtowidjojo, Patrick H. Au-Yeung, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Jr., Thomas U. Luebbe, Holger Meemann, Shirley S. Sexton, Peter Wenzel, Marcus Wobser
  • Patent number: 8581011
    Abstract: The present invention provides one-step processes for the production of chlorinated and/or fluorinated propenes. The processes provide good product yield with low, e.g., less than about 20%, or even less than 10%, concentrations of residues/by-products. Advantageously, the processes may be conducted at low temperatures than 500° C. so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: November 12, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Max M. Tirtowidjojo, Debashis Chakraborty, Juergen Eiffler, Kurt F. Hirsekorn, William J. Kruper, Jr.
  • Publication number: 20130270356
    Abstract: An apparatus includes a manifold with a chamber for mixing multiple reactants. Gases are jetted into the manifold by a plurality of inlet injectors. The inlet injectors are arranged such that the gases passing into the manifold impinge on each other at a common point to form a mixture. The mixture passes through a plurality of holes in one side of the manifold into a deposition chamber where the mixture of gases impinges on additional gases at a common point to provide a reaction resulting in deposition of solid materials in the deposition chamber. The solid materials are free-standing.
    Type: Application
    Filed: April 17, 2012
    Publication date: October 17, 2013
    Applicants: Dow Globel Technologies LLC, Rohm and Haas Electronic Materials LLC
    Inventors: Heather A. G. Stern, Vincent DiFilippo, Jitendra S. Goela, Michael A. Pickering, Hua Bai, Debashis Chakraborty, Hangyao Wang
  • Patent number: 8558041
    Abstract: The present invention provides isothermal multitube reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors utilize a feed mixture inlet temperature at least 20° C. different from a desired reaction temperature.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: October 15, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Jr., Thomas U. Luebbe, Avani M. Patel, Shirley S. Sexton, Peter Wenzel, Marcus Wobser