Patents by Inventor Barkev Keoshkerian

Barkev Keoshkerian 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: 20180007892
    Abstract: A composite filament includes a core particle comprising a styrene/acrylate polymer resin, and a shell comprising a styrene/acrylate ionomer resin, wherein the styrene/acrylate ionomer resin comprises a metal ion acrylate monomer, and methods of making thereof. Various articles can be manufactured from such composite filaments.
    Type: Application
    Filed: July 6, 2016
    Publication date: January 11, 2018
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chretien
  • Publication number: 20180009975
    Abstract: A composite powder includes a core particle comprising a styrene/acrylate polymer resin, and a shell comprising a styrene/acrylate ionomer resin, wherein the styrene/acrylate ionomer resin comprises a metal ion acrylate monomer, and methods of making thereof. Various articles can be manufactured from such composite powders.
    Type: Application
    Filed: July 6, 2016
    Publication date: January 11, 2018
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chretien
  • Patent number: 9863065
    Abstract: A composite filament includes a core particle comprising a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix, and a shell polymer disposed about the core particle, and methods of making thereof. Various articles can be manufactured from such composite filaments.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: January 9, 2018
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • Patent number: 9849707
    Abstract: An improved apparatus and method for forming images comprising Braille, raised print, regular print, or a combination is described. The architecture for the printing of Braille dots using marking material such as UV gel ink. The UV gel ink is deposited on a drum that has an array of closely packed raised features like mesas that are cup-shaped. The mesas on drum are filled with the UV gel ink and transferred to paper or another substrate. Partial curing can occur on the drum and the dots can be fully cured after transfer to the substrate. The mesas are shaped so that the dots take on a final shape consistent with usual Braille features.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: December 26, 2017
    Assignee: Xerox Corporation
    Inventors: Naveen Chopra, Christopher A. Wagner, Michelle N. Chrétien, Jennifer L. Belelie, Barkev Keoshkerian
  • Publication number: 20170298536
    Abstract: A composite filament includes a core particle comprising a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix, and a shell polymer disposed about the core particle, and methods of making thereof. Various articles can be manufactured from such composite filaments.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 19, 2017
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • Publication number: 20170298194
    Abstract: A composite powder includes a core particle comprising a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix, and a shell polymer disposed about the core particle, and methods of making thereof. Various articles can be manufactured from such composite powders.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 19, 2017
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • Publication number: 20170295795
    Abstract: A composite filament includes a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix and methods of making thereof. Various articles can be manufactured from such composite filaments.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 19, 2017
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • Publication number: 20170298232
    Abstract: A composite powder includes a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix and methods of making thereof. Various articles can be manufactured from such composite powders.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 19, 2017
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • Patent number: 9782771
    Abstract: Provided is a method of patterning a substrate. The method includes depositing, in a first predetermined pattern, hydrophobic material on a first surface of a hydrophilic substrate. The method includes permeating the hydrophobic material through a thickness of the substrate. The method includes exposing the hydrophobic material to UV-light and sufficiently solidifying the permeated hydrophobic material. The sufficiently solidified hydrophobic material forms a liquid-impervious barrier that separates the substrate into at least one discrete region.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: October 10, 2017
    Assignee: XEROX CORPORATION
    Inventors: Sarah J. Vella, Jennifer L. Belelie, Barkev Keoshkerian, James D. Mayo, Brynn Dooley
  • Publication number: 20170284876
    Abstract: An article includes a body and at least one 3D-printable conductive composite segment in mechanical communication with the body. The body includes a first material and the at least one conductive composite segment includes a matrix material, a plurality of carbon nanotubes, and conductive additives. The conductive additives include a plurality of metallic particulates, a plurality of graphitic particles or a combination thereof.
    Type: Application
    Filed: April 4, 2016
    Publication date: October 5, 2017
    Inventors: Carolyn Moorlag, Rachel Prestayko, Barkev Keoshkerian, Sarah J. Vella
  • Publication number: 20170275486
    Abstract: A curable phase change gellant ink composition including a phase change ink vehicle comprising at least one acrylate monomer, oligomer, or prepolymer; acryloylmorpholine; at least one gellant, wherein the gellant is miscible with the phase change ink vehicle; a photoinitiator; and an optional colorant.
    Type: Application
    Filed: March 23, 2016
    Publication date: September 28, 2017
    Inventors: Naveen Chopra, Carolyn Moorlag, Marcel P. Breton, Barkev Keoshkerian, Saleh A. Jiddawi, Gordon Sisler
  • Publication number: 20170259497
    Abstract: A method includes adding about 5 weight percent to about 25 weight percent of carbon nanotubes to a crystalline or semi-crystalline polymer to form a composite and forming a filament or particles from the composite, the filament or particles having a size suitable for use in additive manufacturing, in the absence of the carbon nanotubes a melt viscosity of the crystalline or semi-crystalline polymer is below 100 Pa·s, preventing its use in additive manufacturing. The filament or particles comprising carbon nanotubes can be used in methods of additive manufacturing.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 14, 2017
    Inventors: Rachel PRESTAYKO, Sarah J. VELLA, Carolyn MOORLAG, Barkev KEOSHKERIAN, C. Geoffrey ALLEN
  • Patent number: 9752040
    Abstract: A nanosilver ink composition including silver nanoparticles; polystyrene; and an ink vehicle. A process for preparing a nanosilver ink composition comprising combining silver nanoparticles; polystyrene; and an ink vehicle. A process for forming conductive features on a substrate using flexographic and gravure printing processes comprising providing a nanosilver ink composition comprising silver nanoparticles; polystyrene; and an ink vehicle; depositing the nanosilver ink composition onto a substrate to form deposited features; and heating the deposited features on the substrate to form conductive features on the substrate.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: September 5, 2017
    Assignee: Xerox Corporation
    Inventors: Adela Goredema, Yiliang Wu, Barkev Keoshkerian, Jenny Eliyahu, Cuong Vong, Biby Esther Abraham
  • Publication number: 20170236613
    Abstract: A conductive polymer composite includes: a thermoplastic polymer; a plurality of carbon nanotubes; and a plurality of metallic particulates in an amount ranging from about 0.5% to about 80% by weight relative to the total weight of the conductive polymer composite.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 17, 2017
    Inventors: Rachel PRESTAYKO, Sarah J. VELLA, Carolyn MOORLAG, Barkev KEOSHKERIAN
  • Publication number: 20170210922
    Abstract: A color three-dimensional (3D) printing system includes (1) a solid build ink for each of a plurality of colors, each solid build ink includes (a) a solid acrylate in an amount from about 40 to about 70 percent by weight, (b) a non-curable wax in an amount from about 10 to about 45 percent by weight, (c) a curable wax in an amount from about 1 to about 15 percent by weight, (d) a photoinitiator, and (e) a colorant; each solid build ink has a curing speed adjusted by a ratio of the non-curable wax to curable wax such that the initial curing speed and final hardness of each solid build ink is approximately the same for each of the plurality of colors, and (2) a support material includes the non-curable wax used in each build ink, the support material providing a scaffold for deposition of each build ink.
    Type: Application
    Filed: April 6, 2017
    Publication date: July 27, 2017
    Inventors: Marcel P. Breton, JENNIFER L. BELELIE, MICHELLE N. CHRETIEN, NAVEEN CHOPRA, BARKEV KEOSHKERIAN
  • Publication number: 20170207001
    Abstract: A conductive polymer composite is disclosed. The composite comprises a thermoplastic polymer and a plurality of metal-plated carbon nanotubes. A method of three dimensional printing using the conductive polymer composite and a filament comprising the conductive polymer composite are also disclosed.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 20, 2017
    Inventors: Sarah J. Vella, Rachel PRESTAYKO, Carolyn Moorlag, Barkev Keoshkerian
  • Publication number: 20170206999
    Abstract: A conductive polymer composite is disclosed. The composite comprises a thermoplastic polymer; carbon nanotubes; at least one electron donor molecule and at least one electron acceptor molecule. A method of three-dimensional printing using the conductive polymer composite and a conductive polymer composite filament are also disclosed.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 20, 2017
    Inventors: Rachel Prestayko, Sarah J. Vella, Carolyn Moorlag, Barkev Keoshkerian
  • Publication number: 20170207000
    Abstract: A conductive polymer composite is disclosed. The composite comprises a thermoplastic polymer; carbon nanotubes in an amount ranging from 2% to about 40% by weight, relative to the total weight of the conductive polymer composite; and a plurality of graphitic particles in an amount ranging from about 2% to about 50% by weight, relative to the total weight of the conductive polymer composite.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 20, 2017
    Inventors: Rachel Prestayko, Sarah J. Vella, Carolyn Moorlag, Barkev Keoshkerian
  • Publication number: 20170203597
    Abstract: An improved apparatus and method for forming images comprising Braille, raised print, regular print, or a combination is described. The architecture for the printing of Braille dots using marking material such as UV gel ink. The UV gel ink is deposited on a drum that has an array of closely packed raised features like mesas that are cup-shaped. The mesas on drum are filled with the UV gel ink and transferred to paper or another substrate. Partial curing can occur on the drum and the dots can be fully cured after transfer to the substrate. The mesas are shaped so that the dots take on a final shape consistent with usual Braille features.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 20, 2017
    Inventors: Naveen Chopra, Christopher A. Wagner, Michelle N. Chrétien, Jennifer L. Belelie, Barkev Keoshkerian
  • Patent number: 9676921
    Abstract: The present disclosure provides an ink comprising a latex comprising a photoinitiator and at least one unsaturated polyester, which is suitable for use in an indirect printing method.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: June 13, 2017
    Assignee: XEROX CORPORATION
    Inventors: Jennifer L. Belelie, Guerino G. Sacripante, Michelle N. Chrétien, Barkev Keoshkerian, Naveen Chopra