Patents by Inventor Mary Ryan-Hotchkiss

Mary Ryan-Hotchkiss 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).

  • Phase change inks with isocyanate-derived antioxidants and UV stabilizers
    Patent number: 7084189
    Abstract: Disclosed is a phase change ink composition comprising (a) a colorant and (b) the reaction product of (i) an isocyanate and (ii) an antioxidant or UV stabilizer molecule having thereon (A) at least one isocyanate-reactive hydroxyl group and/or (B) at least one isocyanate-reactive primary or secondary amino group.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: August 1, 2006
    Assignee: Xerox Corporation
    Inventors: Jeffery H. Banning, Donald R. Titterington, Mary Ryan-Hotchkiss
  • Phase change ink printing process
    Patent number: 6989052
    Abstract: Disclosed is a phase change ink composition comprising (1) an ink carrier comprising (A) a first component which comprises an ester-amide material, and (B) a second component which comprises either (i) a material selected from the group consisting of urethane compounds, urea compounds, urethane-urea compounds, and mixtures thereof, (ii) a polyalkylene wax, or (iii) a mixture thereof; and (2) a colorant.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: January 24, 2006
    Assignee: Xerox Corporation
    Inventors: Bo Wu, Donald R. Titterington, Mary Ryan-Hotchkiss
  • PHASE CHANGE INK PRINTING PROCESS
    Publication number: 20060004123
    Abstract: Disclosed is a phase change ink composition comprising (1) an ink carrier comprising (A) a first component which comprises an ester-amide material, and (B) a second component which comprises either (i) a material selected from the group consisting of urethane compounds, urea compounds, urethane-urea compounds, and mixtures thereof, (ii) a polyalkylene wax, or (iii) a mixture thereof; and (2) a colorant.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Inventors: Bo Wu, Donald Titterington, Mary Ryan-Hotchkiss
  • Phase change inks with isocyanate-derived antioxidants and UV stabilizers
    Publication number: 20040167249
    Abstract: Disclosed is a phase change ink composition comprising (a) a colorant and (b) the reaction product of (i) an isocyanate and (ii) an antioxidant or UV stabilizer molecule having thereon (A) at least one isocyanate-reactive hydroxyl group and/or (B) at least one isocyanate-reactive primary or secondary amino group.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 26, 2004
    Applicant: Xerox Corporation
    Inventors: Jeffery H. Banning, Donald R. Titterington, Mary Ryan-Hotchkiss
  • Automatic document feed of phase change inks
    Patent number: 6481840
    Abstract: A method of improving automatic document feed of media printed with phase change inks coats the surface of the phase change inks on the media with fine particles. The particles may include PMMA, glass bead, silica particles, crushed glass particles, kaolin clay, micronized PE and PTFE, calcium carbonate powder, hard inks or toner powder. The particles may be applied to the surface of a transfix drum by oil transfer or electrostatically prior to jetting the phase change ink, or in the case of hard inks may be jetted onto the surface of the transfix drum (offset) with the phase change ink or onto the print media (direct) after application of the phase change ink in an overprint printing process. Also the particles may be applied by a pair of finishing rollers after the media has been printed with the phase change inks, either in a direct or offset print process, the finishing roller on the print side being coated with the fine particles.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: November 19, 2002
    Assignee: Xerox Corporation
    Inventors: Rolf K. Mueller, Steven V. Korol, Wolfgang G. Wedler, Jeffrey R. Kohne, Augustus J. Rogers, IV, Mary Ryan-Hotchkiss, Donald R. Titterington, Gerard H. Rousseau
  • Automatic document feed of phase change inks
    Publication number: 20010055052
    Abstract: A method of improving automatic document feed of media printed with phase change inks coats the surface of the phase change inks on the media with fine particles. The particles may include PMMA, glass bead, silica particles, crushed glass particles, kaolin clay, micronized PE and PTFE, calcium carbonate powder, hard inks or toner powder. The particles may be applied to the surface of a transfix drum by oil transfer or electrostatically prior to jetting the phase change ink, or in the case of hard inks may be jetted onto the surface of the transfix drum (offset) with the phase change ink or onto the print media (direct) after application of the phase change ink in an overprint printing process. Also the particles may be applied by a pair of finishing rollers after the media has been printed with the phase change inks, either in a direct or offset print process, the finishing roller on the print side being coated with the fine particles.
    Type: Application
    Filed: July 27, 2001
    Publication date: December 27, 2001
    Applicant: Xerox Corporation
    Inventors: Rolf K. Mueller, Steven V. Korol, Wolfgang G. Wedler, Jeffrey R. Kohne, Augustus J. Rogers, Mary Ryan-Hotchkiss, Donald R. Titterington, Gerard H. Rousseau