Patents by Inventor Badri Veeraraghavan

Badri Veeraraghavan 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: 20240150551
    Abstract: The present disclosure provides compositions, articles, and methods related to altering electromagnetic radiation. An actinic radiation curable precursor composition of a three-dimensional article includes a) a resin comprising an actinic radiation curable component, wherein the resin has a viscosity no greater than 500 cP; b) hollow glass microspheres having a density no greater than 2 g/mL and an average diameter no greater than 200 micrometers; and c) a photoinitiator. At least part of the surface of the hollow glass microspheres comprises a surface coating or modification. An article includes a photo(co)polymerization reaction product of the composition. A method of manufacturing a three-dimensional article includes the steps of a) providing an actinic radiation curable precursor composition; and b) selectively exposing a portion of the composition to a source of actinic radiation to at least partially cure the exposed portion of the composition, thereby forming a cured layer.
    Type: Application
    Filed: March 31, 2022
    Publication date: May 9, 2024
    Inventors: Tom Gaide, Jens Eichler, Christian Weinmann, Friedrich M. Wolff, Stefan V. Friedrich, Karoline Anne Ostrowski, Adrian S. Eckert, Michael H. Stalder, Philipp Jurgen Semmler, Badri Veeraraghavan, Klaus Hintzer, Jennifer J. Sokol
  • Patent number: 11732104
    Abstract: A polymer matrix composite comprising a porous polymeric network; and a plurality of dielectric particles distributed within the polymeric network structure; wherein the dielectric particles are present in a range from 5 to 98 weight percent, based on the total weight of the dielectric particles and the polymer (excluding the solvent); and wherein the polymer matrix composite has a dielectric constant in a range from 1.05 to 80; and methods for making the same. Polymer matrix composites comprising dielectric particles are useful, for example, as electric field insulators.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: August 22, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Badri Veeraraghavan, Derek J. Dehn, Clinton P. Waller, Jr., Bharat R. Acharya, Satinder K. Nayar
  • Publication number: 20230119856
    Abstract: A thermally conductive electromagnetically absorbing material includes a plurality of particles dispersed in a binder. The plurality of particles can have a particle size distribution having at least three peaks, where at least a majority of particles within a half width at half maximum of one, but not the other ones, of the at least three peaks are at least partially coated with an electromagnetically absorbing coating. The plurality of particles can include pluralities of first and second particles where a total number of the first particles is at most 1% of a total number of the first and second particles and where the first particles are more electromagnetically absorbing than the second particles. Films, molded articles and systems including the thermally conductive electromagnetically absorbing material are described.
    Type: Application
    Filed: March 23, 2021
    Publication date: April 20, 2023
    Inventors: Zhonghua Lu, Badri Veeraraghavan, Joel S. Peiffer, Jeffrey A. Tostenrude, Jaewon Kim, Zulfiqar A. Khan, Jennifer J. Sokol
  • Patent number: 11571490
    Abstract: An article having anti-microbial effect is provided. The article includes an occlusive layer and a substrate having a nanostructured surface. The nanostructured surface is coated with a metal oxide layer and the metal oxide layer includes a metal oxide.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: February 7, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ta-Hua Yu, Junkang Jacob Liu, Narina Y. Stepanova, Badri Veeraraghavan, Moses M. David
  • Publication number: 20220380617
    Abstract: A PTSM-coated expandable microsphere comprises a polymer shell enclosing an interior volume containing at least one blowing agent. The polymer shell has an outer surface with photothermal susceptor material disposed on at least a portion thereof. If heated to at least one temperature greater than 25° C., each of the expandable microspheres expands, but does not rupture, the polymer shell by a sufficient amount to at least double the interior volume. A markable comprises a substrate and a viewable layer secured thereto. The viewable layer comprises a binder material retaining the PTSM-coated expandable microspheres. A method of marking a markable article comprises imagewise exposing the PTSM-coated expandable microspheres of the markable article to at least sufficient electromagnetic radiation to cause the PTSM-coated expandable microspheres to expand thereby creating a predetermined image. A marked article preparable according to the method is also disclosed.
    Type: Application
    Filed: November 9, 2020
    Publication date: December 1, 2022
    Inventors: Joshua M. Fishman, Sean M. Sweetnam, Jeffrey P. Kalish, Caitlin E. Meree, Badri Veeraraghavan, Matthew H. Frey
  • Patent number: 11383350
    Abstract: Metal bond abrasive articles and methods of making metal bond abrasive articles via a focused beam are disclosed. In an aspect, a metal bond abrasive article includes a metallic binder material having abrasive particles retained therein, where the abrasive particles have at least one coating disposed thereon. The coating includes a metal, a metal oxide, a metal carbide, a metal nitride, a metalloid, or combinations thereof, and the at least one coating has an average thickness of 0.5 micrometers or greater. The metal bond abrasive article includes a number of layers directly bonded to each other. Metal bond abrasive articles prepared by the method can include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: July 12, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jean-Luc Rifaut, Badri Veeraraghavan, Tilo Remhof, Brian D. Goers, Andreas M. Geldmacher, Robert L. W. Smithson, Przemyslaw P. Markowicz, Johannes Fink
  • Publication number: 20210332277
    Abstract: According to one embodiment, a method can comprise: providing a tool that has a first portion that comprises a first material and a second portion that comprises a second material, wherein the second material differs from the first material and the tool is subject to a magnetic field, and wherein the first material and the second material are provided such that the magnetic field is relatively stronger at and adjacent the first portion relative to the magnetic field at and adjacent the second portion; positioning a surface adjacent to the tool so as to be subject to the magnetic field; and disposing magnetizable abrasive particles on the surface, wherein the magnetizable abrasive particles are attracted to an area on the surface adjacent the first portion where the magnetic field is relatively stronger so as to provide for at least one of a desired orientation, placement and alignment of a majority of the magnetizable abrasive particles on the surface.
    Type: Application
    Filed: January 10, 2018
    Publication date: October 28, 2021
    Inventors: Aaron K. Nienaber, Joseph B. Eckel, Thomas J. Nelson, Brian D. Goers, Samad Javid, Ronald D. Jesme, Badri Veeraraghavan, Sheryl A. Vanasse
  • Publication number: 20200308364
    Abstract: A polymer matrix composite comprising a porous polymeric network; and a plurality of dielectric particles distributed within the polymeric network structure; wherein the dielectric particles are present in a range from 5 to 98 weight percent, based on the total weight of the dielectric particles and the polymer (excluding the solvent); and wherein the polymer matrix composite has a dielectric constant in a range from 1.05 to 80; and methods for making the same. Polymer matrix composites comprising dielectric particles are useful, for example, as electric field insulators.
    Type: Application
    Filed: November 15, 2018
    Publication date: October 1, 2020
    Inventors: Badri Veeraraghavan, Derek J. Dehn, Clinton P. Waller, Jr., Bharat R. Acharya, Satinder K. Nayar
  • Patent number: 10639395
    Abstract: An article having anti-microbial effect is provided. The article includes an occlusive layer; a substrate having two opposing major surfaces, wherein one opposing major surface is a nanostructured surface; a metal oxide layer, wherein the nanostructured surface is coated with the metal oxide layer and the metal oxide layer comprises a metal oxide; and a metal layer overlaying the metal oxide layer.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Ta-Hua Yu, Döne Demirgöz, Junkang J. Liu, Badri Veeraraghavan, Narina Y. Stepanova
  • Patent number: 10617784
    Abstract: An article having anti-microbial effect is provided. The article includes an occlusive layer; a substrate overlaying the occlusive layer, wherein the substrate having two opposing major surfaces; a metal oxide layer overlaying the substrate, wherein the metal oxide layer comprises a metal oxide and wherein the metal oxide layer comprises less than 40 wt. % non-oxidized metal; and a metal layer overlaying the metal oxide layer.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: April 14, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Ta-Hua Yu, Döne Demirgöz, Junkang J. Liu, Badri Veeraraghavan, Narina Y. Stepanova
  • Publication number: 20200070310
    Abstract: Various embodiments disclosed relate to an abrasive article. The abrasive article includes a metallic matrix component, an abrasive particle component dispersed within the metallic matrix component; and a filler particle component dispersed within the metallic matrix component. A portion of the filler particle component is at least partially coated by a first metallic layer.
    Type: Application
    Filed: November 9, 2017
    Publication date: March 5, 2020
    Inventors: Janusz HAJDUK, Brian D. GOERS, Richard HUPPERTZ, Badri VEERARAGHAVAN
  • Publication number: 20190375072
    Abstract: Metal bond abrasive articles and methods of making metal bond abrasive articles via a focused beam are disclosed. In an aspect, a metal bond abrasive article includes a metallic binder material having abrasive particles retained therein, where the abrasive particles have at least one coating disposed thereon. The coating includes a metal, a metal oxide, a metal carbide, a metal nitride, a metalloid, or combinations thereof, and the at least one coating has an average thickness of 0.5 micrometers or greater. The metal bond abrasive article includes a number of layers directly bonded to each other. Metal bond abrasive articles prepared by the method can include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.
    Type: Application
    Filed: January 25, 2018
    Publication date: December 12, 2019
    Inventors: Jean-Luc Rifaut, Badri Veeraraghavan, Tilo Remhof, Brian D. Goers, Andreas M. Geldmacher, Robert L.W. Smithson, Przemyslaw P. Markowicz, Johannes Fink
  • Publication number: 20190275191
    Abstract: An article having anti-microbial effect is provided. The article includes an occlusive layer; a substrate overlaying the occlusive layer, wherein the substrate having two opposing major surfaces; a metal oxide layer overlaying one opposing major surface of the substrate, wherein the metal oxide layer comprises a metal oxide; and a metal layer overlaying the other opposing major surface of the substrate; wherein the substrate is between the metal oxide layer and the metal layer; and wherein electric potential of the metal oxide layer is at least 0.454V more than electric potential of the metal layer.
    Type: Application
    Filed: October 5, 2017
    Publication date: September 12, 2019
    Inventors: Junkang Jacob Liu, Ta-Hua Yu, Amy K. McNulty, Narina Y. Stepanova, Badri Veeraraghavan, Eric J. Olson, Matthew T. Scholz, Ranjani V. Parthasarathy, Kevin D. Hagen
  • Publication number: 20190262973
    Abstract: A bonded abrasive wheel comprises magnetizable abrasive particles retained in a first organic binder. The bonded abrasive wheel has a central portion adjacent to a central hub, an outer circumference, and a rotational axis extending through the central hub. A majority of the magnetizable abrasive particles are substantially parallel to the rotational axis. A method of making the bonded abrasive wheel is also disclosed.
    Type: Application
    Filed: September 27, 2017
    Publication date: August 29, 2019
    Inventors: Joseph B. Eckel, Thomas J. Nelson, Aaron K. Nienaber, Ronald D. Jesme, Badri Veeraraghavan
  • Publication number: 20190054202
    Abstract: An article having anti-microbial effect is provided. The article includes an occlusive layer; a substrate having two opposing major surfaces, wherein one opposing major surface is a nanostructured surface; a metal oxide layer, wherein the nanostructured surface is coated with the metal oxide layer and the metal oxide layer comprises a metal oxide; and a metal layer overlaying the metal oxide layer.
    Type: Application
    Filed: November 10, 2016
    Publication date: February 21, 2019
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ta-Hua Yu, Döne Demirgöz, Junkang J. Liu, Badri Veeraraghavan, Narina Stepanova
  • Publication number: 20180353638
    Abstract: An article having anti-microbial effect is provided. The article includes an occlusive layer; a substrate overlaying the occlusive layer, wherein the substrate having two opposing major surfaces; a metal oxide layer overlaying the substrate, wherein the metal oxide layer comprises a metal oxide and wherein the metal oxide layer comprises less than 40 wt. % non-oxidized metal; and a metal layer overlaying the metal oxide layer.
    Type: Application
    Filed: November 3, 2016
    Publication date: December 13, 2018
    Inventors: Ta-Hua Yu, Döne Demirgöz, Junkang J. Liu, Badri Veeraraghavan, Narina Y. Stepanova
  • Publication number: 20180303873
    Abstract: Compositions for treating a biofilm comprising viable microorganisms are provided. The compositions include a suspending medium, a bioactive glass comprising B2O3, and an effective amount of an antimicrobial compound selected from the group consisting of antimicrobial biguanide, quaternary ammonium compound, silver or copper deposited as a coating on the surface of the bioactive glass, and antimicrobial lipid component. Methods of treating a biofilm or a surface with the compositions are also provided.
    Type: Application
    Filed: November 30, 2015
    Publication date: October 25, 2018
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: RAHA A. BEEN, NAIMUL KARIM, PETRA L. KOHLER RIEDI, ANDREW W. VAIL, BADRI VEERARAGHAVAN
  • Patent number: 10004243
    Abstract: A composite particle having a fluorinated surface and a discontinuous layer of gold nanoparticles disposed on the fluorinated surface, articles that include such particles, and methods of using the particles and the articles for removal of ethylene.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: June 26, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Evan Koon Lun Yuuji Hajime, Badri Veeraraghavan
  • Publication number: 20180154037
    Abstract: An article having anti-microbial effect is provided. The article includes an occlusive layer and a substrate having a nanostructured surface. The nanostructured surface is coated with a metal oxide layer and the metal oxide layer includes a metal oxide.
    Type: Application
    Filed: June 29, 2016
    Publication date: June 7, 2018
    Inventors: Ta-Hua Yu, Junkang Jacob Liu, Narina Y. Stepanova, Badri Veeraraghavan, Moses M. David
  • Publication number: 20180093008
    Abstract: An article having anti-microbial effect is provided. The article includes an occlusive layer, an absorbent layer over-laying the occlusive layer, and a metal oxide layer overlaying the absorbent layer, wherein the metal oxide layer comprises a metal oxide and wherein the metal oxide layer comprises less than 40 wt. % non-oxidized metal.
    Type: Application
    Filed: May 5, 2016
    Publication date: April 5, 2018
    Inventors: Ta-Hua Yu, Junkang Jacob Liu, Narina Y. Stepanova, Badri Veeraraghavan, Moses M. David