Patents by Inventor James Craig Minor

James Craig Minor 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).

  • Dry xerographic toner and developer
    Patent number: 5798199
    Abstract: A high speed toner comprising a body of hybrid resin which is about 92 percent by weight polyester and 8 percent by weight polystyrene. Blended in the resin is a charge control agent, a pigment, and about 10 percent by weight of the toner of fumed aluminum oxide. Where the pigments are color-subtractive the charge control agent is a copolymer of styrene and 2-acrylamido-2-methylpropane sulfonic acid.The toner is mixed with a carrier of ferrite particles having a thick silicone coating to remain through the long life of the toner.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: August 25, 1998
    Assignee: Lexmark International, Inc.
    Inventors: David Brian Bilbrey, Rick Owen Jones, George Pharris Marshall, Michael Gordon Miller, James Craig Minor