Patents by Inventor Craig Michael Bertelsen

Craig Michael Bertelsen 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).

  • Emulsion Aggregation Toner Formulation
    Publication number: 20150064619
    Abstract: An emulsion aggregation toner formulation for electrophotography and a method for preparation thereof. The emulsion aggregation toner formulation includes a polyester resin emulsion formed using an extruded polyester binder resin. The extruded polyester binder resin is formed using a plurality of pre-emulsified crosslinked polyester binder resins. Further, the emulsion aggregation toner formulation comprises at least one colorant dispersion and a wax dispersion.
    Type: Application
    Filed: October 17, 2014
    Publication date: March 5, 2015
    Inventors: Michael James Bensing, Craig Michael Bertelsen, John Joseph Kraseski, Bryan Patrick Livengood, Jing X. Sun, Vincent Wen-Hwa Tang
  • Emulsion aggregation toner formulation
    Patent number: 8551681
    Abstract: An emulsion aggregation toner formulation for electrophotography and a method for preparation thereof. The emulsion aggregation toner formulation includes a polyester resin emulsion formed using an extruded polyester binder resin having a broad molecular weight distribution. The extruded polyester binder resin is formed using a plurality of polyester binder resins. Further, the emulsion aggregation toner formulation comprises at least one colorant dispersion and a wax dispersion.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: October 8, 2013
    Assignee: Lexmark International, Inc.
    Inventors: Michael James Bensing, Craig Michael Bertelsen, John Joseph Kraseski, Bryan Patrick Livengood, Jing X. Sun, Vincent Wen-Hwa Ting
  • Polymer based ink formulation
    Patent number: 8188158
    Abstract: The invention provides an ink formulation comprising a polymer associated self-dispersed colorant. The polymer has an alkyl amino end functional group that is chemically associated by electron donation/acceptation and hydrogen bonded to surface functional groups of the colorant particles. The modified self-dispersed colorant shows improved printing quality.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: May 29, 2012
    Assignee: Lexmark International, Inc.
    Inventors: Craig Michael Bertelsen, Yaqiang Ming, Rebecca Beth Silveston-Keith, Jing X. Sun
  • Hydrophobic nozzle plate structures for micro-fluid ejection heads
    Patent number: 7954926
    Abstract: A nozzle plate for a micro-fluid ejection head, a method of making a hydrophobic nozzle plate, and a method for improving the resiliency of a nozzle plate. The nozzle has a photoimageable hydrophobic polycyclic polyolefin layer derived from an epoxy functionalized polynorbornene.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: June 7, 2011
    Assignee: Lexmark International, Inc.
    Inventors: Craig Michael Bertelsen, Christopher Allen Craft, Bryan Thomas Fannin, David Christopher Graham, Kelly Ann Killeen, Bart Allan Mansdorf, Sean Terrance Weaver, Xiaoming Wu
  • Polyester resin toner produced by emulsion aggregation
    Patent number: 7923191
    Abstract: The present disclosure relates to chemically processed toner. The toner may be prepared by an emulsion aggregation method by forming a polyester dispersion wherein the polyester has an acid value of about 5 to about 50 and a particle size of about 50 to about 500 nanometers. The polyester dispersion may then be combined with a pigment and/or release agent dispersion wherein the pigment and/or release agent dispersion may contain a dispersant. This may then be followed by heating and recovering agglomerated toner particles wherein the toner particles may have a mean particle size of about 3 to about 15 microns and an average degree of circularity of between about 0.90 to about 1.0.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: April 12, 2011
    Assignee: Lexmark International, Inc.
    Inventors: Craig Michael Bertelsen, Ligia Aura Bejat, Michael James Bensing, John Joseph Kraseski, Matthew T. Martinkovic, Jing X. Sun
  • Emulsion Aggregation Toner Formulation
    Publication number: 20100062359
    Abstract: An emulsion aggregation toner formulation for electrophotography and a method for preparation thereof. The emulsion aggregation toner formulation includes a polyester resin emulsion formed using an extruded polyester binder resin having a broad molecular weight distribution. The extruded polyester binder resin is formed using a plurality of polyester binder resins. Further, the emulsion aggregation toner formulation comprises at least one colorant dispersion and a wax dispersion.
    Type: Application
    Filed: September 8, 2008
    Publication date: March 11, 2010
    Inventors: Michael James Bensing, Craig Michael Bertelsen, John Joseph Kraseski, Bryan Patrick Livengood, Jing X. Sun, Vincent Wen-Hwa Ting
  • Polymer Based Ink Formulation
    Publication number: 20100016469
    Abstract: The invention provides an ink formulation comprising a polymer associated self-dispersed colorant. The polymer has an alkyl amino end functional group that is chemically associated by electron donation/acceptation and hydrogen bonded to surface functional groups of the colorant particles. The modified self-dispersed colorant shows improved printing quality.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 21, 2010
    Inventors: Craig Michael Bertelsen, Yaqiang Ming, Rebecca Beth Silveston-Keith, Jing X. Sun
  • HYDROPHOBIC NOZZLE PLATE STRUCTURES FOR MICRO-FLUID EJECTION HEADS
    Publication number: 20090185003
    Abstract: A nozzle plate for a micro-fluid ejection head, a method of making a hydrophobic nozzle plate, and a method for improving the resiliency of a nozzle plate. The nozzle has a photoimageable hydrophobic polycyclic polyolefin layer derived from an epoxy functionalized polynorbornene.
    Type: Application
    Filed: January 23, 2008
    Publication date: July 23, 2009
    Inventors: Craig Michael Bertelsen, Christopher Allen Craft, Bryan Thomas Fannin, David Christopher Graham, Kelly Ann Killeen, Bart Allan Mansdorf, Sean Terrance Weaver, Xiaoming Wu
  • POLYESTER RESIN TONER PRODUCED BY EMULSION AGGREGATION
    Publication number: 20090029282
    Abstract: The present disclosure relates to chemically processed toner. The toner may be prepared by an emulsion aggregation method by forming a polyester dispersion wherein the polyester has an acid value of about 5 to about 50 and a particle size of about 50 to about 500 nanometers. The polyester dispersion may then be combined with a pigment and/or release agent dispersion wherein the pigment and/or release agent dispersion may contain a dispersant. This may then be followed by heating and recovering agglomerated toner particles wherein the toner particles may have a mean particle size of about 3 to about 15 microns and an average degree of circularity of between about 0.90 to about 1.0.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 29, 2009
    Inventors: Craig Michael Bertelsen, Ligia Aura Bejat, Michael James Bensing, John Joseph Kraseski, Matthew T. Martinkovic, Jing X. Sun