Patents by Inventor Geoffrey Allen

Geoffrey Allen 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: 8544999
    Abstract: An in situ process for preparing a phase change magnetic ink including heating a phase change ink composition to a first temperature sufficient to provide a melt composition; wherein the phase change ink composition comprises a carrier, an optional colorant, and an optional dispersant; placing the melt composition under inert atmosphere; heating the melt composition to a second temperature sufficient to effect decomposition of a metal carbonyl; adding the metal carbonyl to the melt composition under inert atmosphere at this second temperature to form metal nanoparticles thus forming in situ a phase change magnetic ink including the metal nanoparticles; optionally, filtering the phase change magnetic ink while in a liquid state; and cooling the phase change magnetic ink to a solid state.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: October 1, 2013
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, C. Geoffrey Allen, Peter G. Odell, Caroline Turek
  • Patent number: 8506040
    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. In embodiments, the solid ink formulation comprises a blend of an amorphous and crystalline components which provides a solid ink with excellent robustness when forming images or printing on coated paper substrates.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: August 13, 2013
    Assignee: Xerox Corporation
    Inventors: Jennifer L. Belelie, Peter G. Odell, Stephan V. Drappel, Kentaro Morimitsu, Naveen Chopra, Marcel P. Breton, Gabriel Iftime, C. Geoffrey Allen, Rina Carlini
  • Patent number: 8507041
    Abstract: An ink comprising an ink vehicle; pigment particles; and a dispersant; wherein the dispersant stabilizes the pigment particles; and wherein the dispersant is a compound of the formula or a mixture thereof, wherein R and R? are independently selected from alkyl, arylalkyl, or alkylaryl with from about 18 to about 60 carbon atoms and wherein m is an integer of from about 1 to about 30.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 13, 2013
    Assignee: Xerox Corporation
    Inventors: Adela Goredema, Mihaela Maria Birau, C. Geoffrey Allen, Caroline Turek, Maxine E. Haberl, Christopher Wagner, Raymond Wan-Ning Wong, Peter G. Odell
  • Patent number: 8501670
    Abstract: A well treatment fluid and method of use includes water, at least one hydratable polymer, an optional crosslinking agent, and a delayed release percarbonate formulation effective to reduce initial viscosity of the fluid after a period of time. Also disclosed are processes for fracturing a subterranean formation.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: August 6, 2013
    Assignee: Kemira Chemicals Inc.
    Inventors: Carolina Hanna Matilda Andersson, Mona Ezzelarab, Cecilla Eva Maria Johansson, Carl Wilhelm Aften, Walter Philip Watson, Richard Anthony Lalama, Geoffrey Allen Monteith, Frank Schinkel
  • Patent number: 8500260
    Abstract: An ink composition including one or more oxazoline compounds or oxazoline derivatives having either crystalline, amorphous or even semi-crystalline properties for use in a particular printing application, such as in a direct-to-paper print process.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: August 6, 2013
    Assignee: Xerox Corporation
    Inventors: Rina Carlini, Guerino G. Sacripante, Stephan V. Drappel, Charles Geoffrey Allen
  • Publication number: 20130165352
    Abstract: A well treatment fluid and method of use includes water, at least one hydratable polymer, an optional crosslinking agent, and a delayed release percarbonate formulation effective to reduce initial viscosity of the fluid after a period of time. Also disclosed are processes for fracturing a subterranean formation.
    Type: Application
    Filed: February 22, 2013
    Publication date: June 27, 2013
    Inventors: Carolina Hanna Matilda Anderson, Mona Ezzelarab, Cecilla Eva Maria Johansson, Carl Wilhelm Aften, Walter Philip Watson, Richard Anthony Lalama, Geoffrey Allen Monteith, Frank Schinkel
  • Patent number: 8449096
    Abstract: A synergist for pigment in a solid ink having the following formula:
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: May 28, 2013
    Assignee: Xerox Corporation
    Inventors: M. Maria Birau, C. Geoffrey Allen, Marcel P. Breton, Carol A. Jennings, Caroline M. Turek, James D. Mayo, Adela Goredema, Yvonne Wong
  • Patent number: 8409341
    Abstract: Solvent-based ink compositions which can be used for ink jet printing in a variety of applications. In particular, the present embodiments are directed to magnetic inks having desirable ink properties. The ink of the present embodiments comprise magnetic nanoparticles that are coated with various materials to prevent the exposure of the nanoparticles to oxygen, and provides robust prints.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: April 2, 2013
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Peter G. Odell, C. Geoffrey Allen, Marcel P. Breton, Richard P. N. Veregin
  • Publication number: 20130066696
    Abstract: A system and method is disclosed for rewarding subscribed users who invite other users to a business establishment. On receiving an indication that a subscribed user of a social group is at a business establishment, a message is sent to a plurality of users of the social group announcing that the user is at the business establishment. On receiving one or more signals, within a predetermined period, that one or more of the plurality of users entered into a purchase transaction with the business establishment, an offering is sent to the subscribed user.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 14, 2013
    Applicant: GOOGLE INC.
    Inventor: Geoffrey Allen BORGGAARD
  • Patent number: 8367751
    Abstract: A solid ink that includes an ink carrier and a resinous compound of the formulas or a salt thereof, wherein G1 is —X1C(O)OR1, —X2OC(O)R2, or —X2OH; G2 is R4, R12, —C(O)R2, —C(O)X1C(O)OR1, or —C(O)X2OC(O)R2; R1 is an alkyl having from 10 to 80 carbon atoms; R2 is an alkyl having from 2 to 40 carbon atoms; each R3 and R4 is independently hydrogen, alkyl, arylalkyl or alkylaryl; each R5 and each R6 is independently hydrogen or alkyl; X1 and X2 are both a straight or branched alkylene group; t1 is 1 to 20; t2 and t3 is independently 0 to 20; u1 is 1 to 30; u2 and u3 is independently 0 to 30; each R7 and each R8 is independently hydrogen, alkyl, or alkoxyl; each R9 and each R10 is independently hydrogen, alkyl, or alkoxyl; Ar is a substituted or unsubstituted aromatic moiety; p is 1 to 5; q is 1 to 12; A? is selected from the group consisting of Cl?, Br?, I?, HSO4?, HSO3?, CH3SO3?, NO3?, HCOO?, CH3COO?, H2PO4?, SCN?, ClO4?, SSO3?, PF6?, and SbCl6?; and J is alkyl, arylalkyl, or alkylaryl.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: February 5, 2013
    Assignee: Xerox Corporation
    Inventors: Maria Birau, C. Geoffrey Allen, Carol A. Jennings, Peter G. Odell
  • Patent number: 8360546
    Abstract: An in situ process for preparing a phase change magnetic ink including combining a phase change ink composition with a reducing agent; wherein the phase change ink composition comprises a carrier, an optional colorant, and an optional dispersant, and wherein the reducing agent has at least one alcohol functionality; heating the combined phase ink composition and reducing agent to a first temperature sufficient to provide a melt composition; adding a metal salt to the melt composition under an inert atmosphere to provide a metal salt-melt composition; heating the metal salt-melt composition to a second temperature sufficient to effect a metal reduction reaction to reduce the metal salt to metal nanoparticles thus forming in situ a phase change magnetic ink including the metal nanoparticles; optionally, filtering the phase change magnetic ink while in a liquid state; cooling the phase change magnetic ink to a solid state.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: January 29, 2013
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, C. Geoffrey Allen, Caroline Turek, Peter G. Odell
  • Patent number: 8329854
    Abstract: A resinous compound of the formulas or a salt thereof, wherein G1 is —X1C(O)OR1, —X2OC(O)R2, or —X2OH; G2 is R4, R12, —C(O)R2, —C(O)X1C(O)OR1, or —C(O)X2OC(O)R2; R1 is an alkyl having from 10 to 80 carbon atoms; R2 is an alkyl having from 2 to 40 carbon atoms; each R3 and R4 is independently hydrogen, alkyl, arylalkyl or alkylaryl; each R5 and each R6 is independently hydrogen or alkyl; X1 and X2 are both a straight or branched alkylene group; t1 is 1 to 20; t2 and t3 is independently 0 to 20; u1 is 1 to 30; u2 and u3 is independently 0 to 30; each R7 and each R8 is independently hydrogen, alkyl, or alkoxyl; each R9 and each R10 is independently hydrogen, alkyl, or alkoxyl; Ar is a substituted or unsubstituted aromatic moiety; p is 1 to 5; q is 1 to 12; A? is selected from the group consisting of Cl?, Br?, I?, HSO4?, HSO3?, CH3SO3?, NO3?, HCOO?, CH3COO?, H2PO4?, SCN?, BF4?, ClO4?, SSO3?, PF6?, and SbCl6?; and J is alkyl, arylalkyl, or alkylaryl.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: December 11, 2012
    Assignee: Xerox Corporation
    Inventors: Maria Birau, C. Geoffrey Allen
  • Publication number: 20120274710
    Abstract: An ink composition including one or more oxazoline compounds or oxazoline derivatives having either crystalline, amorphous or even semi-crystalline properties for use in a particular printing application, such as in a direct-to-paper print process.
    Type: Application
    Filed: April 27, 2011
    Publication date: November 1, 2012
    Applicant: XEROX CORPORATION
    Inventors: Rina CARLINI, Guerino G. SACRIPANTE, Stephan V. DRAPPEL, Charles Geoffrey ALLEN
  • Publication number: 20120274699
    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. In embodiments, the solid ink formulation comprises a blend of an amorphous and crystalline components which provides a solid ink with excellent robustness when forming images or printing on coated paper substrates.
    Type: Application
    Filed: April 27, 2011
    Publication date: November 1, 2012
    Applicant: XEROX CORPORATION
    Inventors: Jennifer L. Belelie, Peter G. Odell, Stephan V. Drappel, Kentaro Morimitsu, Naveen Chopra, Marcel P. Breton, Gabriel Iftime, C. Geoffrey Allen, Rina Carlini
  • Publication number: 20120272861
    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. In embodiments, the amorphous component is synthesized from an esterification reaction of citric acid.
    Type: Application
    Filed: April 27, 2011
    Publication date: November 1, 2012
    Applicant: XEROX CORPORATION
    Inventors: Kentaro Morimitsu, Jennifer L. Belelie, Stephan V. Drappel, C. Geoffrey Allen, Corey Tracy, Peter G. Odell
  • Patent number: 8287632
    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. In embodiments, the amorphous component is synthesized from an esterification reaction of citric acid.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: October 16, 2012
    Assignee: Xerox Corporation
    Inventors: Kentaro Morimitsu, Jennifer L. Belelie, Stephan V. Drappel, C. Geoffrey Allen, Corey Tracy, Peter G. Odell
  • Patent number: 8273166
    Abstract: A phase change ink compositions, comprising a novel colorant wax to prevent and/or reduce printhead and nozzle contamination in ink jet printers caused by drooling and faceplate staining. In particular, there is provided novel colorants containing acid groups for use in phase change ink compositions and which are compatible with phase change ink components.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: September 25, 2012
    Assignee: Xerox Corporation
    Inventors: Maria Bírau, C. Geoffrey Allen, Biby E. Abraham, Caroline M. Turek, Peter G. Odell
  • Publication number: 20120236088
    Abstract: A phase change magnetic ink including a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a carbon coated magnetic nanoparticle comprising a magnetic core and a carbon shell disposed thereover.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: Xerox Corporation
    Inventors: Gabriel Iftime, C. Geoffrey Allen, Peter G. Odell, Richard P.N. Veregin, Marcel P. Breton
  • Publication number: 20120235075
    Abstract: Solvent-based ink compositions which can be used for ink jet printing in a variety of applications. In particular, the present embodiments are directed to magnetic inks having desirable ink properties. The ink of the present embodiments comprises magnetic nanoparticles that are coated with various materials to prevent the exposure of the nanoparticles to oxygen, and provides robust prints.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: XEROX CORPORATION
    Inventors: GABRIEL IFTIME, Peter G. Odell, C. Geoffrey Allen, Marcel P. Breton, Richard P. N. Veregin
  • Publication number: 20120235074
    Abstract: Solvent-based ink compositions which can be used for ink jet printing in a variety of applications. In particular, the present embodiments are directed to magnetic inks having desirable ink properties. The ink of the present embodiments comprise magnetic nanoparticles that are coated with various materials to prevent the exposure of the nanoparticles to oxygen, and provides robust prints.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: XEROX CORPORATION
    Inventors: GABRIEL IFTIME, Peter G. Odell, C. Geoffrey Allen, Marcel P. Breton, Richard P. N. Veregin