Patents by Inventor Vivek Mehrotra

Vivek Mehrotra 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: 10322360
    Abstract: A coated granular filtration medium is formed by the deposition of an electrolyte layer onto core particles. The electrolyte layer comprises a cationic polyelectrolyte. The coated granular filtration medium provides a synergistic combination of filtration and in situ coagulation that enables efficient, effective, and economical decontamination of industrial and other wastewaters.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: June 18, 2019
    Assignee: TELEDYNE SCIENTIFIC & IMAGING, LLC
    Inventors: Rahul Ganguli, Vivek Mehrotra, Dennis Strauss
  • Patent number: 10239021
    Abstract: A conformal coating that resists fouling by waterborne contamination in aquatic environments, a method for fabricating the coating, and a filter having such a coating are disclosed. The coating comprises a hydrophilic polymer and a surfactant wherein the surfactant undergoes a phase change upon exposure to a saline solution. Also disclosed are in situ methods for regenerating anti-fouling filters having the fouling resistant coating.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: March 26, 2019
    Assignee: Teledyne Scientific & Imaging, LLC
    Inventors: Rahul Ganguli, Vivek Mehrotra, Tony Ten-Luen Liao
  • Publication number: 20180369756
    Abstract: A filtration membrane coating comprising a hydrophilic polymer, a surfactant, and one or more charged compounds, each containing one or more sulfonate functionalities and one or more linkable functionalities selected from the group consisting of amine, monochlorotriazine, and dichlorotriazine. The hydrophilic polymer and surfactant form a thin primer layer which is also superhydrophilic. The primer layer improves flux, and enables improved adhesion of the one or more charged compounds, which form a charged dye layer on top of the primer layer when enhances rejection of charged divalent ions. The coating can be applied while the membrane is packaged in its final form, such as in a spiral wound or other configuration.
    Type: Application
    Filed: June 22, 2017
    Publication date: December 27, 2018
    Inventors: Dennis R. Strauss, Rahul Ganguli, Ten-Luen T. Liao, Vivek Mehrotra, Paulus Henricus Johannes Verbeek, Thomas Krebs
  • Patent number: 9607748
    Abstract: A micro-fabricated electromagnetic device is provided for on-circuit integration. The electromagnetic device includes a core. The core has a plurality of electrically insulating layers positioned alternatingly between a plurality of magnetic layers to collectively form a continuous laminate having alternating magnetic and electrically insulating layers. The electromagnetic device includes a coil embedded in openings of the semiconductor substrate. An insulating material is positioned in the cavity and between the coil and an inner surface of the core. A method of manufacturing the electromagnetic device includes providing a semiconductor substrate having openings formed therein. Windings of a coil are electroplated and embedded in the openings. The insulating material is coated on or around an exposed surface of the coil.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: March 28, 2017
    Assignee: Teledyne Scientific & Imaging, LLC
    Inventors: Robert E. Mihailovich, Alex P. Papavasiliou, Vivek Mehrotra, Philip A. Stupar, Robert L. Borwick, III, Rahul Ganguli, Jeffrey F. DeNatale
  • Publication number: 20170053728
    Abstract: A micro fabricated electromagnetic device and method for fabricating its component structures, the device having a layered magnetic core of a potentially unlimited number of alternating insulating and magnetic layers depending upon application, physical property and performance characteristic requirements for the device. Methods for fabricating the high performing device permit cost effective, high production rates of the device and its component structures without any degradation in device performance resulting from component layering.
    Type: Application
    Filed: August 5, 2016
    Publication date: February 23, 2017
    Applicant: Teledyne Scientific & Imaging, LLC
    Inventors: Vivek Mehrotra, Rahul Ganguli, Jennifer Kuo, Payam Minoofar, Robert Mihailovich
  • Publication number: 20160317952
    Abstract: A coated granular filtration medium is formed by the deposition of an electrolyte layer onto core particles. The electrolyte layer comprises a cationic polyelectrolyte. The coated granular filtration medium provides a synergistic combination of filtration and in situ coagulation that enables efficient, effective, and economical decontamination of industrial and other wastewaters.
    Type: Application
    Filed: April 29, 2016
    Publication date: November 3, 2016
    Inventors: Rahul Ganguli, Vivek Mehrotra, Dennis Strauss
  • Patent number: 9428651
    Abstract: A fouling and stiction-resistant coating suitable for use with marine streamers is made from a silicone undercoat layer and a powdery topcoat layer. The powdery topcoat layer is preferably a non-toxic fluoropolymer which has a low surface energy, a high modulus, and which is not continuous. There may also be a primer layer below the silicone undercoat layer. The powdery topcoat layer is preferably arranged to be penetrable by the feet of barnacles that come into contact with it, with the silicone undercoat layer arranged such that the barnacles' feet that penetrate the powdery topcoat layer bond with the silicone undercoat layer. The powdery topcoat layer is preferably further arranged to peel away from the silicone undercoat layer when force is applied to the barnacles to remove them from the coating.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 30, 2016
    Assignee: TELEDYNE SCIENTIFIC & IMAGING, LLC
    Inventors: Rahul Ganguli, Vivek Mehrotra, Young J. Chung, J. Eric Henckel
  • Publication number: 20160064470
    Abstract: A micro-fabricated electromagnetic device is provided for on-circuit integration. The electromagnetic device includes a core. The core has a plurality of electrically insulating layers positioned alternatingly between a plurality of magnetic layers to collectively form a continuous laminate having alternating magnetic and electrically insulating layers. The electromagnetic device includes a coil embedded in openings of the semiconductor substrate. An insulating material is positioned in the cavity and between the coil and an inner surface of the core. A method of manufacturing the electromagnetic device includes providing a semiconductor substrate having openings formed therein. Windings of a coil are electroplated and embedded in the openings. The insulating material is coated on or around an exposed surface of the coil.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 3, 2016
    Inventors: Robert E. Mihailovich, Alex P. Papavasiliou, Vivek Mehrotra, Philip A. Stupar, Robert L. Borwick, III, Rahul Ganguli, Jeffrey F. DeNatale
  • Publication number: 20150344705
    Abstract: A method for biofouling mitigation using a surface coating with magnetically aligned particles. A coating material that requires curing is provided, to which magnetic particles are added; this coating is applied to a surface. The applied coating is then subjected to a magnetic field in situ such that the magnetic particles are formed into microstructures that render the surface rougher than it would be without the microstructures. The coating is then allowed to cure. The random and non-toxic surface features created by the magnetic particles and magnetic field provide the coated surface with broad spectrum fouling resistance against organisms such as barnacles and bacteria.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 3, 2015
    Applicant: Teledyne Scientific & Imaging, LLC
    Inventors: Rahul Ganguli, Vivek Mehrotra, J. Eric Henckel
  • Patent number: 9108849
    Abstract: A method and device for producing an aligned carbon nanotube array. The arrays of aligned carbon nanotubes (CNTs) may be formed by drying liquid dispersions of CNTs on a nanoporous substrate under an applied electrostatic field. The array may be used in a number of applications including electronics, optics, and filtration, including desalination.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: August 18, 2015
    Assignee: Teledyne Scientific and Imaging, LLC
    Inventors: Dennis Strauss, Vivek Mehrotra
  • Publication number: 20150118514
    Abstract: A method of thermal interface material (TIM) assembly includes plating a seed layer on each of a plurality of graphite film layers, each of the graphite film layers comprising parallel-oriented graphite nanoplates, stacking the plurality of graphite film layers, each of the plurality of graphite film layers separated by at least one solder layer, pressing together the stacked graphite film layers, and applying heat to the plurality of graphite film layers and respective at least one solder layer in a vacuumed furnace to form a graphite laminate.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Inventors: Yuan Zhao, Dennis R. Strauss, Ten-Luen T. Liao, Vivek Mehrotra, Chung-Lung Chen
  • Patent number: 8881132
    Abstract: A system and method for update of firmware of a storage array controller of a storage device in a storage area network. The I/O workload of the storage device is monitored to obtain workload information regarding I/O traffic of the storage device. The workload information is analyzed to identify patterns in the I/O traffic of the storage device. Based on one or more identified patterns in the I/O traffic, future I/O workload of the storage device is forecasted, and, according to the forecasted future I/O workload, at least one firmware update is scheduled.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: November 4, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Satish Kumar Mopur, Vivek Mehrotra, Saikat Mukherjee, Satyaprakash Rao, Sushil Kumar Singh
  • Publication number: 20140065370
    Abstract: A fouling and stiction-resistant coating suitable for use with marine streamers is made from a silicone undercoat layer and a powdery topcoat layer. The powdery topcoat layer is preferably a non-toxic fluoropolymer which has a low surface energy, a high modulus, and which is not continuous. There may also be a primer layer below the silicone undercoat layer. The powdery topcoat layer is preferably arranged to be penetrable by the feet of barnacles that come into contact with it, with the silicone undercoat layer arranged such that the barnacles' feet that penetrate the powdery topcoat layer bond with the silicone undercoat layer. The powdery topcoat layer is preferably further arranged to peel away from the silicone undercoat layer when force is applied to the barnacles to remove them from the coating.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 6, 2014
    Inventors: RAHUL GANGULI, Vivek Mehrotra, Young J. Chung, J. Eric Henckel
  • Publication number: 20130334130
    Abstract: A conformal coating that resists fouling by waterborne contamination in aquatic environments, a method for fabricating the coating, and a filter having such a coating are disclosed. The coating comprises a hydrophilic polymer and a surfactant wherein the surfactant undergoes a phase change upon exposure to a saline solution. Also disclosed are in situ methods for regenerating anti-fouling filters having the fouling resistant coating.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Inventors: Rahul Ganguli, Vivek Mehrotra, Tony Ten-Luen Liao
  • Publication number: 20130295343
    Abstract: A method and device for producing an aligned carbon nanotube array. The arrays of aligned carbon nanotubes (CNTs) may be formed by drying liquid dispersions of CNTs on a nanoporous substrate under an applied electrostatic field. The array may be used in a number of applications including electronics, optics, and filtration, including desalination.
    Type: Application
    Filed: July 2, 2013
    Publication date: November 7, 2013
    Inventors: Dennis Strauss, Vivek Mehrotra
  • Publication number: 20130284086
    Abstract: A method and device for producing an aligned carbon nanotube array. The arrays of aligned carbon nanotubes (CNTs) may be formed by drying liquid dispersions of CNTs on a nanoporous substrate under an applied electrostatic field. The array may be used in a number of applications including electronics, optics, and filtration, including desalination.
    Type: Application
    Filed: July 2, 2013
    Publication date: October 31, 2013
    Inventors: Dennis Strauss, Vivek Mehrotra
  • Patent number: 8546002
    Abstract: A yeast biofilm microbial fuel cell has anode and cathode chambers, each containing an electrolyte medium, separated by a proton conducting membrane. A baker's yeast biofilm is induced to form on the anode under electrical poising. A method of making the MFC includes adding baker's yeast and yeast nutrient fuel source to the anode solution, connecting a resistor across the anode and cathode to enable current flow through the resistor for a selected time for poising the anode and formation of the anodic yeast biofilm, replacing the anode solution with a fresh quantity of yeast-free solution, adding fuel source to the solution, and continuing to run the MFC for a selected time under resistance. The steps of replacing the anode solution, adding fuel source and running the cell under load are repeated until the baker's yeast has formed a suitable anodic biofilm.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: October 1, 2013
    Assignee: Teledyne Scientific & Imaging, LLC
    Inventors: Rahul Ganguli, Vivek Mehrotra
  • Patent number: 8491970
    Abstract: A method and device for producing an aligned carbon nanotube array. The arrays of aligned carbon nanotubes (CNTs) may be formed by drying liquid dispersions of CNTs on a nanoporous substrate under an applied electrostatic field. The array may be used in a number of applications including electronics, optics, and filtration, including desalination.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: July 23, 2013
    Assignee: Teledyne Scientific & Imaging, LLC
    Inventors: Dennis Strauss, Vivek Mehrotra
  • Patent number: 8356959
    Abstract: A biomimetic system for mitigating marine bio-fouling is disclosed which is based upon the sacrificial skin mechanism found in the pilot whale species. The anti-bio-fouling system is characterized by the continuous in-situ underwater formation of a conformal protective skin around a submerged object or structure and employs a circulatory system embedded in a diffuser layer conformably fitted and secured to the structure to controllably deliver a sacrificial skin-forming material to the structural surface. The system advantageously utilizes the unique chemical properties of the skin-forming material to alter the material's viscosity in response to contact with sea water such that the material is uniformly distributed over the structure surface by a self-diffusion process, notwithstanding structural configuration or gravitational orientation, thus forming a stabilized waterproof layer or sacrificial skin.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: January 22, 2013
    Assignee: Teledyne Scientific & Imaging LLC
    Inventors: Rahul Ganguli, Vivek Mehrotra
  • Patent number: 8313797
    Abstract: Provided is a method for in-situ coating a substrate or matrix with magnetic metal nanoparticles. A metal salt, which may be organic or inorganic, is introduced into a solution of liquid polyol. In the presence of mechanical stirring and heat, a reduction process occurs wherein the magnetic metal nanoparticles precipitate out of solution and deposit or attach to one or more surfaces of the substrate. The concentration of reaction precursors, combined with the polyol, may be varied to control the size and shape of the magnetic nanoparticles.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: November 20, 2012
    Assignee: Teledyne Scientific & Imaging, LLC
    Inventors: Julia J. Mack, Brian N. Cox, Vivek Mehrotra, Ten-Luen T. Liao, Rahul Ganguli