Patents by Inventor Stephan V. Drappel

Stephan V. Drappel 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: 9738811
    Abstract: Phase change ink compositions having a phase change carrier composition containing a wax and a wax-soluble near-infrared (NIR) dye having an absorption maximum in the wavelength region from about 700 nm to about 1400 nm. Near-infrared prints prepared with such phase change ink compositions. Methods of producing a layer of such a phase change ink on the surface of a substrate.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: August 22, 2017
    Assignee: XEROX CORPORATION
    Inventors: Jeffrey H. Banning, Jule W. Thomas, Jr., Bo Wu, Stephan V. Drappel
  • Patent number: 9422440
    Abstract: An embodiment of the present disclosure is directed to an amorphous bis-urea compound having a formula 1: where X is a branched alkyl bridge and R? and R? are alkyl groups.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: August 23, 2016
    Assignee: XEROX CORPORATION
    Inventors: Naveen Chopra, Adela Goredema, Kentaro Morimitsu, Stephan V. Drappel, Jeffrey H. Banning
  • Patent number: 9394319
    Abstract: A compound comprising a boron subphthalocyanine moiety, a plurality of solubilizing substituents positioned on peripheral cyclic groups of the boron subphthalocyanine moiety and an axial substituent positioned on the boron atom of the boron subphthalocyanine moiety. The plurality of solubilizing substituents comprise an oxygen or sulfur containing functional group and a substituted or unsubstituted, linear, branched or cyclic, aliphatic or aromatic terminal hydrocarbyl group that is 8 or more carbon atoms in length, the hydrocarbyl group optionally containing one or more heteroatoms. The axial substituent is selected from the group consisting of halogen, alkyloxy, haloalkyloxy, ester, carbonyl substituted alkyl, carbonyl substituted haloalkyl, alkylaryloxy, haloalkylaryloxy, alkyl sulfonyl, haloalkyl sulfonyl, alkylaryl sulfonyl and haloalkylaryl sulfonyl.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: July 19, 2016
    Assignee: XEROX CORPORATION
    Inventors: Jeffrey H. Banning, Wolfgang G. Wedler, Stephan V. Drappel
  • Patent number: 9309410
    Abstract: Disclosed is a compound of the formula wherein Ra and Rb each, independently of the other, are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, R1 and R2 each, independently of the other, are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, provided that at least one of R1 and R2 is other than hydrogen, and R3, R4, R5, R6, and R7 each, independently of the others, are alkyl, aryl, arylalkyl, alkylaryl, or a substituent other than hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, wherein in each case alkyl, aryl, arylalkyl, or alkylaryl may or may not be substituted and may or may not have hetero atoms therein, and wherein two or more of R3, R4, R5, R6, and R7 can be joined together to form a ring.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: April 12, 2016
    Assignee: XEROX CORPORATION
    Inventors: Jeffery H. Banning, Bo Wu, Nathan G. Starr, Stephan V. Drappel
  • Patent number: 9228097
    Abstract: Phase change ink comprising carrier and colorant of formula wherein Ra and Rb each, independently, are hydrogen, alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, or alkylaryl, including substituted and hetero-containing alkylaryl; R1 and R2 each, independently, are hydrogen, provided at least one of R1 and R2 is other than hydrogen, alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, or alkylaryl, including substituted and hetero-containing alkylaryl; R3, R4, R5, R6, and R7 each, independently, are alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, alkylaryl, including substituted and hetero-containing alkylaryl, or a substi
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: January 5, 2016
    Assignee: Xerox Corporation
    Inventors: Jeffery H. Banning, Bo Wu, Nathan G. Starr, Stephan V. Drappel
  • Patent number: 9193883
    Abstract: A phase change ink composition including an amorphous compound; a crystalline compound; a polyester polymer, wherein the polyester has a molecular weight of from about 500 to about 8,000 and a polydispersity index of from about 1.0 to about 8.0; an optional synergist; an optional dispersant; and a colorant. A process including (1) incorporating into an ink jet printing apparatus the phase change ink composition; (2) melting the ink; and (3) causing droplets of the melted ink to be ejected in an imagewise pattern onto a substrate. An ink jet printer stick or pellet including the phase change ink composition.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: November 24, 2015
    Assignee: Xerox Corporation
    Inventors: Barkev Keoshkerian, Valerie M. Farrugia, Jenny Eliyahu, Gordon Sisler, Biby Esther Abraham, Stephan V. Drappel
  • Patent number: 9193869
    Abstract: A dye compound of formula 1: where R and R? are substituents independently selected from the group consisting of a hydrogen atom, C1 to C4 alkyl and a solubilizing moiety comprising a substituted or unsubstituted C10 to C70 hydrocarbyl group. At least one of R and R? is not a hydrogen atom or C1 to C4 alkyl. R? and R?? can be independently selected from the group consisting of a hydrogen atom, C1 to C6 alkyl groups or halogens; and X is a squaric acid moiety. A property of the dye compound is that it absorbs radiation having a wavelength in the range of about 700 nm to about 1400 nm.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: November 24, 2015
    Assignee: XEROX CORPORATION
    Inventors: Jeffrey H. Banning, Jule W. Thomas, Jr., Bo Wu, Stephan V. Drappel
  • Patent number: 9109131
    Abstract: A phase change ink composition comprising an amorphous component, a crystalline material, a photochromic material and optionally, a colorant, which are suitable for ink jet printing, including printing on coated paper substrates. The novel phase change ink formulation allows the ink to change color when exposed to UV light, reversibly and multiple times, providing an ink suitable for use in security applications.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: August 18, 2015
    Assignee: XEROX CORPORATION
    Inventors: Gabriel Iftime, Daryl W. Vanbesien, Stephan V. Drappel, Jennifer L. Belelie, Naveen Chopra, Adela Goredema
  • Patent number: 9056998
    Abstract: Novel crystalline compounds with at least two aromatic moieties for use in the phase change inks. The crystalline compound is derived from bio-renewable materials and can be used in phase change ink compositions to impart desirable ink properties. For example, the crystalline compounds provide phase change ink compositions suitable for ink jet printing, including robust printing on coated paper substrates.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: June 16, 2015
    Assignee: XEROX CORPORATION
    Inventors: Adela Goredema, Guerino Sacripante, Kentaro Morimitsu, Naveen Chopra, Stephan V. Drappel
  • Publication number: 20150159033
    Abstract: An embodiment of the present disclosure is directed to an amorphous bis-urea compound having a formula 1: where X is a branched alkyl bridge and R? and R? are alkyl groups.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 11, 2015
    Applicant: XEROX CORPORATION
    Inventors: Naveen Chopra, Adela Goredema, Kentaro Morimitsu, Stephan V. Drappel, Jeffrey H. Banning
  • Patent number: 9051486
    Abstract: A solid ink composition comprising an amorphous component, a crystalline material, and optionally, a colorant, which are suitable for ink jet printing, including printing on coated paper substrates, and methods for making the same. In embodiments, the crystalline and amorphous components are synthesized from an esterification reaction of tartaric acid with an alcohol.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: June 9, 2015
    Assignee: XEROX CORPORATION
    Inventors: Jennifer L. Belelie, Kentaro Morimitsu, Naveen Chopra, Corey Tracy, Stephan V. Drappel, Peter G. Odell
  • Publication number: 20150105579
    Abstract: Novel crystalline compounds with at least two aromatic moieties for use in the phase change inks. The crystalline compound is derived from bio-renewable materials and can be used in phase change ink compositions to impart desirable ink properties. For example, the crystalline compounds provide phase change ink compositions suitable for ink jet printing, including robust printing on coated paper substrates.
    Type: Application
    Filed: October 14, 2013
    Publication date: April 16, 2015
    Applicant: XEROX CORPORATION
    Inventors: ADELA GOREDEMA, Guerino Sacripante, Kentaro Morimitsu, Naveen Chopra, Stephan V. Drappel
  • Patent number: 9005484
    Abstract: A composition that includes an stabilized silver nanoparticles, a gellant and an optional wax. The gellant and the stabilized silver nanoparticles are soluble or dispersable in either an isoparaffinic hydrocarbon solvent, a mineral oil solvent or an alkane solvent.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: April 14, 2015
    Assignee: Xerox Corporation
    Inventors: Marcel P. Breton, Yiliang Wu, Naveen Chopra, Jennifer L. Belelie, Stephan V. Drappel
  • Patent number: 8981088
    Abstract: A compound comprising a boron subphthalocyanine moiety, a plurality of solubilizing substituents positioned on peripheral cyclic groups of the boron subphthalocyanine moiety and an axial substituent positioned on the boron atom. The plurality of solubilizing substituents comprise an oxygen or sulfur containing functional group and a substituted or unsubstituted, linear, branched or cyclic, aliphatic or aromatic terminal hydrocarbyl group that is 8 or more carbon atoms in length, the hydrocarbyl group optionally containing one or more heteroatoms. The axial substituent is a cyclic group selected from the group consisting of heterocyclic amine groups, diaryl ketone groups, benzotriazole groups, benzyl alcohol groups and polycyclic aromatic hydrocarbon groups, the cyclic group being bonded to the boron atom by an oxygen containing linking moiety, the cyclic group optionally being substituted with one or more additional substituents.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: March 17, 2015
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, Wolfgang G. Wedler, Stephan V. Drappel
  • Patent number: 8974047
    Abstract: A phase change ink composition including an ink vehicle; an optional colorant; and ethylene vinyl acetate in an amount of from about 0.1 to about 10 percent by weight based on the total weight of the phase change ink composition.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: March 10, 2015
    Assignee: Xerox Corporation
    Inventors: Salma Falah Toosi, Mihaela Maria Birau, Biby Esther Abraham, Stephan V. Drappel, James D. Mayo, Peter G. Odell, Jeffrey H. Banning, Caroline Turek
  • Publication number: 20150065697
    Abstract: Disclosed is a compound of the formula wherein Ra and Rb each, independently of the other, are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, R1 and R2 each, independently of the other, are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, provided that at least one of R1 and R2 is other than hydrogen, and R3, R4, R5, R6, and R7 each, independently of the others, are alkyl, aryl, arylalkyl, alkylaryl, or a substituent other than hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, wherein in each case alkyl, aryl, arylalkyl, or alkylaryl may or may not be substituted and may or may not have hetero atoms therein, and wherein two or more of R3, R4, R5, R6, and R7 can be joined together to form a ring.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 5, 2015
    Applicant: Xerox Corporation
    Inventors: Jeffery H. Banning, Bo Wu, Nathan G. Starr, Stephan V. Drappel
  • Publication number: 20150065729
    Abstract: A compound comprising a boron subphthalocyanine moiety, a plurality of solubilizing substituents positioned on peripheral cyclic groups of the boron subphthalocyanine moiety and an axial substituent positioned on the boron atom of the boron subphthalocyanine moiety. The plurality of solubilizing substituents comprise an oxygen or sulfur containing functional group and a substituted or unsubstituted, linear, branched or cyclic, aliphatic or aromatic terminal hydrocarbyl group that is 8 or more carbon atoms in length, the hydrocarbyl group optionally containing one or more heteroatoms. The axial substituent is selected from the group consisting of halogen, alkyloxy, haloalkyloxy, ester, carbonyl substituted alkyl, carbonyl substituted haloalkyl, alkylaryloxy, haloalkylaryloxy, alkyl sulfonyl, haloalkyl sulfonyl, alkylaryl sulfonyl and haloalkylaryl sulfonyl.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 5, 2015
    Applicant: XEROX CORPORATION
    Inventors: Jeffrey H. Banning, Wolfgang G. Wedler, Stephan V. Drappel
  • Publication number: 20150065620
    Abstract: Phase change ink comprising carrier and colorant of formula wherein Ra and Rb each, independently, are hydrogen, alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, or alkylaryl, including substituted and hetero-containing alkylaryl; R1 and R2 each, independently, are hydrogen, provided at least one of R1 and R2 is other than hydrogen, alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, or alkylaryl, including substituted and hetero-containing alkylaryl; R3, R4, R5, R6, and R7 each, independently, are alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, alkylaryl, including substituted and hetero-containing alkylaryl, or a substi
    Type: Application
    Filed: August 28, 2013
    Publication date: March 5, 2015
    Applicant: Xerox Corporation
    Inventors: Jeffery H. Banning, Bo Wu, Nathan G. Starr, Stephan V. Drappel
  • Publication number: 20150065713
    Abstract: A compound comprising a boron subphthalocyanine moiety, a plurality of solubilizing substituents positioned on peripheral cyclic groups of the boron subphthalocyanine moiety and an axial substituent positioned on the boron atom. The plurality of solubilizing substituents comprise an oxygen or sulfur containing functional group and a substituted or unsubstituted, linear, branched or cyclic, aliphatic or aromatic terminal hydrocarbyl group that is 8 or more carbon atoms in length, the hydrocarbyl group optionally containing one or more heteroatoms. The axial substituent is a cyclic group selected from the group consisting of heterocyclic amine groups, diaryl ketone groups, benzotriazole groups, benzyl alcohol groups and polycyclic aromatic hydrocarbon groups, the cyclic group being bonded to the boron atom by an oxygen containing linking moiety, the cyclic group optionally being substituted with one or more additional substituents.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 5, 2015
    Applicant: XEROX CORPORATION
    Inventors: Jeffrey H. Banning, Wolfgang G. Wedler, Stephan V. Drappel
  • Publication number: 20150056420
    Abstract: Phase change ink compositions having a phase change carrier composition containing a wax and a wax-soluble near-infrared (NIR) dye having an absorption maximum in the wavelength region from about 700 nm to about 1400 nm. Near-infrared prints prepared with such phase change ink compositions. Methods of producing a layer of such a phase change ink on the surface of a substrate.
    Type: Application
    Filed: August 26, 2013
    Publication date: February 26, 2015
    Applicant: Xerox Corporation
    Inventors: Jeffrey H. Banning, Jule W. Thomas, Jr., Bo Wu, Stephan V. Drappel