Patents by Inventor Denise R. Bayley

Denise R. Bayley 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 with charge additive mixture
    Patent number: 5484678
    Abstract: A toner composition comprised of resin, pigment and a charge additive mixture of components of the formulas ##STR1## wherein R.sub.1 is an alkoxy group, R.sub.2 is an alkyl group, and n is an integer of 1 to 3.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: January 16, 1996
    Assignee: Xerox Corporation
    Inventors: Thomas R. Pickering, Denise R. Bayley, Roger N. Ciccarelli
  • Toner compositions with manganese complex charge enhancing additives
    Patent number: 5393632
    Abstract: A toner composition comprised of resin, pigment, and a manganese complex charge enhancing additive.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: February 28, 1995
    Assignee: Xerox Corporation
    Inventors: Roger N. Ciccarelli, Thomas R. Pickering, Denise R. Bayley, Jacques C. Bertrand
  • Liquid developer compositions
    Patent number: 5366840
    Abstract: A liquid developer comprised of thermoplastic resin particles, an optional charge director, and a charge additive or adjuvant comprised of a component of the formulas ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen and alkyl, and n is 0 (zero), 1,2,3, or 4.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: November 22, 1994
    Assignee: Xerox Corporation
    Inventors: James R. Larson, Frank J. Bonsignore, Roger N. Ciccarelli, Thomas R. Pickering, Denise R. Bayley, Jacques C. Bertrand
  • Toner compositions with aluminum charge enhancing additives
    Patent number: 5346793
    Abstract: A negatively charged toner composition comprised of resin particles, pigment particles, and an aluminum charge enhancing additive obtained from the reaction of an aluminum inorganic salt solution and an alkoxy substituted benzoic acid.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: September 13, 1994
    Assignee: Xerox Corporation
    Inventors: Jacques C. Bertrand, Denise R. Bayley, Thomas R. Pickering, Roger N. Ciccarelli
  • Toner and developer compositions
    Patent number: 5346795
    Abstract: A toner composition comprised of resin, pigment and a mixture of charge enhancing additives comprised of an alkylsalicyclic acid and a charge additive of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen and alkyl, and n is zero, 1, 2, 3, or 4.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: September 13, 1994
    Assignee: Xerox Corporation
    Inventors: Thomas R. Pickering, Denise R. Bayley, Roger N. Ciccarelli, Jacques C. Bertrand
  • Toner and developer compositions
    Patent number: 5324613
    Abstract: A toner containing resin, pigment and an aluminum hydroxide charge additive, or the hydrates thereof, and developer compositions with the aforementioned toner and imaging processes thereof are disclosed.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: June 28, 1994
    Assignee: Xerox Corporation
    Inventors: Roger N. Ciccarelli, Denise R. Bayley, Jacques C. Bertrand, Thomas R. Pickering
  • Passivated green toner composition
    Patent number: 5278019
    Abstract: A green toner comprised of resin particles, HELIOGEN GREEN.TM. pigment particles, a charge enhancing additive, and surface additive particles.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: January 11, 1994
    Assignee: Xerox Corporation
    Inventors: Roger N. Ciccarelli, Denise R. Bayley
  • Toner compositions with aluminum charge enhancing additives
    Patent number: 5250381
    Abstract: A negatively charged toner composition comprised of resin particles, pigment particles, and an aluminum salt of thiophenecarboxylic acid charge enhancing additive.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: October 5, 1993
    Assignee: Xerox Corporation
    Inventors: Roger N. Ciccarelli, Jacques C. Bertrand, Denise R. Bayley, Thomas R. Pickering
  • Toner compositions with metal complex charge enhancing additives
    Patent number: 5250379
    Abstract: A negatively charged toner composition comprised of resin particles, pigment particles, and an aluminum charge enhancing additive obtained from the reaction of an aluminum inorganic salt solution, and xanthene carboxylic acid.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: October 5, 1993
    Assignee: Xerox Corporation
    Inventors: Denise R. Bayley, Thomas R. Pickering, Roger N. Ciccarelli, Jacques C. Bertrand
  • Toner compositions with metal complex charge enhancing additives
    Patent number: 5250380
    Abstract: A negatively charged toner composition comprised of resin particles, pigment particles, and an aluminum charge enhancing additive obtained from the reaction of an aluminum inorganic salt solution, and coumarin-3-carboxylic acid.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: October 5, 1993
    Assignee: Xerox Corporation
    Inventors: Denise R. Bayley, Thomas R. Pickering, Roger N. Ciccarelli, Jacques C. Bertrand
  • Toner and developer compositions comprising aluminum charge control agent
    Patent number: 5223368
    Abstract: A toner containing resin, pigment and an aluminum hydroxide charge additive, or the hydrates thereof, and developer compositions with the aforementioned toner and imaging processes thereof are disclosed.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: June 29, 1993
    Assignee: Xerox Corporation
    Inventors: Roger N. Ciccarelli, Denise R. Bayley, Jacques C. Bertrand, Thomas R. Pickering
  • Passivated green toner compositions comprising positive charge enhancing additive
    Patent number: 5212036
    Abstract: A green toner comprised of resin particles, HELIOGEN GREEN.TM. pigment particles, a charge enhancing additive, and surface additive particles.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: May 18, 1993
    Assignee: Xerox Corporation
    Inventors: Roger N. Ciccarelli, Denise R. Bayley
  • Passivated toner compositions comprising positive charge enhancing additive
    Patent number: 5208129
    Abstract: A process for the preparation of passivated toners with a substantially stable positive or negative triboelectric value of from about 10 to about 30 microscoulombs per gram which comprises admixing toner resin particles, colored pigment particles, and a charge enhancing additive; and subsequently adding thereto surface additives wherein the charge additive functions primarily as a passivating component.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: May 4, 1993
    Assignee: Xerox Corporation
    Inventors: Roger N. Ciccarelli, Denise R. Bayley