Patents by Inventor Maria McCall Barden

Maria McCall Barden 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 Compositions And Processes Including Polymeric Toner Additives
    Publication number: 20200308328
    Abstract: A polymeric composition including a copolymer comprising a first monomer having a high carbon to oxygen ratio of from about 3 to about 8; a second monomer comprising two or more vinyl groups, wherein the second monomer is present in the copolymer in an amount of from greater than about 8 percent by weight to about 60 percent by weight, based on the weight of the copolymer; and, optionally, a third monomer comprising an amine, wherein the third monomer, if present, is present in an amount of from about 0.5 percent by weight to about 5 percent by weight, based on the weight of the copolymer. A toner including the copolymer as a toner surface additive. An emulsion aggregation toner process including the copolymer as a toner surface additive.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Inventors: Richard P. N. Veregin, Padam K. Angra, Maria McCall Barden, Majid Kamel, Cuong Vong, Randy P. Tin, Mark A. Jackson, John J. Ianni