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).

  • Conductive polymer composite
    Patent number: 10186344
    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: Grant
    Filed: January 19, 2016
    Date of Patent: January 22, 2019
    Assignee: XEROX CORPORATION
    Inventors: Rachel Prestayko, Sarah J. Vella, Carolyn Moorlag, Barkev Keoshkerian
  • Printing process
    Patent number: 10174205
    Abstract: A process including providing a curable gellant ink composition having a phase transition temperature; heating the ink composition to a temperature above the phase transition temperature; depositing the ink composition onto a substrate; wherein upon contact with the substrate the ink composition freezes to provide a gel ink layer; treating at least a portion of the gel ink layer whereby treated gellant ink reacts to form a three-dimensional object and wherein untreated gellant ink does not react and remains in gellant form; optionally, wherein the unreacted gellant ink provides a support structure for overhang portions of the three-dimensional object.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: January 8, 2019
    Assignee: Xerox Corporation
    Inventors: Barkev Keoshkerian, Carolyn Moorlag, Edward G. Zwartz, Naveen Chopra, Marcel P. Breton, Sarah J. Vella
  • Anti-bacterial metallo ionomer polymer nanocomposite powders and methods of making the same
    Patent number: 10113059
    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: Grant
    Filed: July 6, 2016
    Date of Patent: October 30, 2018
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chretien
  • HYBRID NANOSILVER/LIQUID METAL INK COMPOSITION AND USES THEREOF
    Publication number: 20180242451
    Abstract: The present disclosure is directed to a hybrid conductive ink including: silver nanoparticles and eutectic low melting point alloy particles, wherein a weight ratio of the eutectic low melting point alloy particles and the silver nanoparticles ranges from 1:20 to 1:5.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 23, 2018
    Applicant: XEROX CORPORATION
    Inventors: Naveen CHOPRA, Barkev KEOSHKERIAN, Chad Steven SMITHSON, Kurt I. HALFYARD, Michelle N. CHRETIEN
  • Styrenic-based polymer coated silver nanoparticle-sulfonated polyester composite powders and methods of making the same
    Patent number: 9908977
    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: Grant
    Filed: April 13, 2016
    Date of Patent: March 6, 2018
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • Silver nanoparticle-sulfonated polyester composite powders and methods of making the same
    Patent number: 9909013
    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: Grant
    Filed: April 13, 2016
    Date of Patent: March 6, 2018
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • PHOTOCURABLE INKS FOR INDIRECT PRINTING METHOD
    Publication number: 20180044545
    Abstract: The present disclosure provides a photocurable ink comprising a radiation curable material selected from the group consisting of a curable monomer, a curable oligomer, and mixtures thereof; a photoinitiator; and a surfactant, which is suitable for use in an indirect printing method. The present disclosure also provides a method of printing using a photocurable ink.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 15, 2018
    Inventors: Michelle N. Chrétien, Jennifer L. Belelie, Naveen Chopra, Barkev Keoshkerian
  • Silver polyester-sulfonated nanoparticle composite filaments and methods of making the same
    Patent number: 9877485
    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: Grant
    Filed: April 13, 2016
    Date of Patent: January 30, 2018
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • METHOD OF SELECTIVE LASER SINTERING
    Publication number: 20180022043
    Abstract: A method of selective laser sintering is disclosed. The method comprises providing composite particles made by emulsion aggregation, the composite particles comprising at least one thermoplastic polymer and at least one carbon particle material. The composite particles are exposed to a laser to fuse the composite particles.
    Type: Application
    Filed: July 20, 2016
    Publication date: January 25, 2018
    Inventors: Barkev Keoshkerian, Jordan H. Wosnick, Rachel Prestayko, Kimberly D. Nosella, Valerie M. Farrugia, Edward G. Zwartz
  • METHOD OF MAKING A POLYMER COMPOSITE
    Publication number: 20180022042
    Abstract: A method of making a composite feed material for fused deposition modeling (FDM) is disclosed. The method comprises providing composite particles made by a process of emulsion aggregation, the composite particles comprising at least one thermoplastic polymer and at least one carbon particle material. A composite feed material is formed for fused deposition modeling from the composite particles. The composite feed material is in a form selected from a filament and a paste.
    Type: Application
    Filed: July 20, 2016
    Publication date: January 25, 2018
    Inventors: Barkev Keoshkerian, Rachel Prestayko, Kimberly D. Nosella, Valerie M. Farrugia
  • ANTI-BACTERIAL METALLO IONOMER POLYMER NANOCOMPOSITE POWDERS AND METHODS OF MAKING THE SAME
    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
  • ANTI-BACTERIAL METALLO IONOMER POLYMER NANOCOMPOSITE FILAMENTS AND METHODS OF MAKING THE SAME
    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
  • Polymer coated sulfonated polyester—silver nanoparticle composite filaments and methods of making the same
    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
  • Architecture for the printing of braille dots using UV gel ink
    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
  • POLYMER COATED SULFONATED POLYESTER - SILVER NANOPARTICLE COMPOSITE FILAMENTS AND METHODS OF MAKING THE SAME
    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
  • STYRENIC-BASED POLYMER COATED SILVER NANOPARTICLE-SULFONATED POLYESTER COMPOSITE POWDERS AND METHODS OF MAKING THE SAME
    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
  • SILVER POLYESTER-SULFONATED NANOPARTICLE COMPOSITE FILAMENTS AND METHODS OF MAKING THE SAME
    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
  • SILVER NANOPARTICLE-SULFONATED POLYESTER COMPOSITE POWDERS AND METHODS OF MAKING THE SAME
    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
  • Method for making hydrophobic barriers requiring UV-light treatment
    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
  • 3D PRINTED CONDUCTIVE COMPOSITIONS ANTICIPATING OR INDICATING STRUCTURAL COMPROMISE
    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