Patents by Inventor Brian S. WANG

Brian S. WANG 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).

  • Patent number: 8778582
    Abstract: A toner having charge control agents which impart excellent triboelectric charging characteristics. In embodiments, the toner particles are made by a process in which the toner particles are made without a shell which provides homogenous distribution of the charge control agents, providing a toner with higher charge and better environmental stability.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: July 15, 2014
    Assignee: Xerox Corporation
    Inventors: Maura A. Sweeney, Robert D. Bayley, Grazyna E. Kmiecik-Lawrynowicz, Brian S. Wang
  • Publication number: 20140120467
    Abstract: A toner having charge control agents which impart excellent triboelectric charging characteristics.
    Type: Application
    Filed: November 1, 2012
    Publication date: May 1, 2014
    Applicant: Xerox Corporation
    Inventors: Maura A. Sweeney, Robert D. Bayley, Grazyna E. Kmiecik-Lawrynowicz, Brian S. Wang
  • Patent number: 8697323
    Abstract: A toner composition including toner particles that have a resin, an optional wax, and an optional colorant; and a surface additive at least partially coating toner particle surfaces. The surface additive includes a mixture of a hexamethyldisilazane (HMDS) surface treated silica, a sol-gel silica that is not surface treated, and a polydimethylsiloxane (PDMS) surface treated silica.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: April 15, 2014
    Assignee: Xerox Corporation
    Inventors: Grazyna E. Kmiecik-Lawrynowicz, Brian S. Wang, Robert D. Bayley, Maura A. Sweeney, Daniel W. Asarese
  • Publication number: 20130260303
    Abstract: A toner composition including toner particles that have a resin, an optional wax, and an optional colorant; and a surface additive at least partially coating toner particle surfaces. The surface additive includes a mixture of a hexamethyldisilazane (HMDS) surface treated silica, a sol-gel silica that is not surface treated, and a polydimethylsiloxane (PDMS) surface treated silica.
    Type: Application
    Filed: April 3, 2012
    Publication date: October 3, 2013
    Applicant: XEROX CORPORATION
    Inventors: Grazyna E. KMIECIK-LAWRYNOWICZ, Brian S. WANG, Robert D. BAYLEY, Maura A. SWEENEY, Daniel W. ASARESE