Patents by Inventor Christopher Michael Wolfe

Christopher Michael Wolfe 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).

  • TONER SURFACE ADDITIVE
    Publication number: 20220091530
    Abstract: According to various embodiments, there is provided a toner composition and a developer. The toner composition includes toner particles including a resin, a colorant; and a surface additive applied to a surface of the toner particles. The surface additive includes polyaniline doped strontium titanate (SrTiO3).
    Type: Application
    Filed: September 24, 2020
    Publication date: March 24, 2022
    Inventors: Elizabeth K. Priebe, Christopher Michael Wolfe, Chieh-Min Cheng, Jordan A. Frank, Richard Partch
  • Toner surface additive
    Patent number: 11281119
    Abstract: According to various embodiments, there is provided a toner composition and a developer. The toner composition includes toner particles including a resin, a colorant; and a surface additive applied to a surface of the toner particles. The surface additive includes polyaniline doped strontium titanate (SrTiO3).
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: March 22, 2022
    Assignees: Xerox Corporation, Clarkson University
    Inventors: Elizabeth K. Priebe, Christopher Michael Wolfe, Chieh-Min Cheng, Jordan A. Frank, Richard Partch
  • Toner surface additive
    Patent number: 11169461
    Abstract: According to various embodiments, there is provided a toner composition and a developer. The toner composition includes toner particles including a resin, a colorant, a charge control agent, and a surface additive applied to a surface of the toner particles. The surface additive includes strontium titanate (SrTiO3), silica (SiO2), silicon tetrachloride (SiCl4) and a charge control agent.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: November 9, 2021
    Assignees: Xerox Corporation, Clarkson University
    Inventors: Elizabeth K. Priebe, Christopher Michael Wolfe, Chieh-Min Cheng, Jordan A. Frank, Richard Partch
  • Emulsion aggregation toner comprising hybrid latex
    Patent number: 9280076
    Abstract: A toner includes a core including a homogenized mixture of a first polyester latex, a styrene/acrylate latex, and a compatibilizing agent latex that includes a graft polyester-styrene/acrylate copolymer and a shell that includes a polyester latex. A process includes (1) homogenizing a mixture to form a plurality of core particles, the mixture including a first polyester latex, a styrene/acrylate latex, and a compatibilizing agent latex comprising a graft polyester-styrene/acrylate copolymer and (2) adding a shell polyester latex to the plurality of core particles to form a plurality of core-shell structures.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: March 8, 2016
    Assignee: XEROX CORPORATION
    Inventors: Shigeng Li, Christopher Michael Wolfe, Yanjia Zuo, Randy Pheav Tin, John L. Pawlak, Jay Lee Schneider, Peter Nguyen, Jordan Frank, Chieh-Min Cheng
  • Toner process comprising reduced coalescence temperature
    Patent number: 9122179
    Abstract: A method of forming toner particles includes aggregating a mixture of a latex, a wax, and an optional pigment to form pre-toner particles, and coalescing the pre-toner particles at a substantially constant target temperature selected within a range from about the glass transition temperature of the pre-toner particles to about 75° C., thereby creating toner particles having a substantially constant particle size distribution during the coalescing step.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: September 1, 2015
    Assignee: XEROX CORPORATION
    Inventors: Jay Lee Schneider, Abdisamed Sheik-Qasim, Randy Pheav Tin, Christopher Michael Wolfe, Richard Philip Nelson Veregin, Mark Elliott, Melanie Davis, Cuong Vong, Shigang Steven Qiu
  • TONER PROCESS COMPRISING REDUCED COALESCENCE TEMPERATURE
    Publication number: 20150056551
    Abstract: A method of forming toner particles includes aggregating a mixture of a latex, a wax, and an optional pigment to form pre-toner particles, and coalescing the pre-toner particles at a substantially constant target temperature selected within a range from about the glass transition temperature of the pre-toner particles to about 75° C., thereby creating toner particles having a substantially constant particle size distribution during the coalescing step.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 26, 2015
    Applicant: XEROX CORPORATION
    Inventors: Jay Lee Schneider, Abdisamed Sheik-Qasim, Randy Pheav Tin, Christopher Michael Wolfe, Richard Philip Nelson Veregin, Mark Elliott, Melanie Davis, Cuong Vong, Shigang Steven Qiu