Patents by Inventor Paul F. Zukoski

Paul F. Zukoski 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).

  • Imaging members with charge transport layers containing high performance polymer blends
    Patent number: 5874192
    Abstract: Disclosed is an imaging member which comprises a conductive substrate, a photogenerating material, a charge transport material, and a polymeric binder comprising (a) a first polymer comprising a polycarbonate, and (b) a second polymer of the formulae I, II, III, IV, V, VI, VII, VIII, IX, or X as further defined herein.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: February 23, 1999
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Leon A. Teuscher, Damodar M. Pai, John F. Yanus, Kathleen M. Carmichael, Edward F. Grabowski, Paul F. Zukoski
  • Imaging members containing high performance polymers
    Patent number: 5814426
    Abstract: Disclosed is an imaging member which comprises a conductive substrate, a photogenerating material, and a binder which comprises a polymer of the formulae I, II, III, IV, V, VI, VII, VIII, IX, or X as further defined herein.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: September 29, 1998
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Leon A. Teuscher, John F. Yanus, Damodar M. Pai, Kathleen M. Carmichael, Edward F. Grabowski, Paul F. Zukoski
  • Composite web system
    Patent number: 5718959
    Abstract: A composite web comprising a flexible first web having a first major surface, a second major surface, a first end and a second end, and a flexible second web having a first end and a second end, the first end of the first web being joined to the first end of the second web, and the first major surface comprising a tacky contact cleaning surface. This composite web may used to clean devices that contact the web prior to, during and subsequent to application of a coating to the web.
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: February 17, 1998
    Assignee: Xerox Corporation
    Inventors: Francis J. Wieloch, Paul F. Zukoski, Gina M. LaManna
  • Powder treatment process to control alloy fractionation
    Patent number: 5217750
    Abstract: Disclosed is a process which comprises providing an alloy of selenium, preparing powdered particles of the alloy with an average particle diameter of less than 300 microns, placing the powdered particles into a container and tumbling the container, and subsequently removing the powdered particles from the container and compressing the powdered particles into pellets.
    Type: Grant
    Filed: May 21, 1992
    Date of Patent: June 8, 1993
    Assignee: Xerox Corporation
    Inventors: Lawrence E. Kowalczyk, Barry A. Lees, Monroe J. Hordon, Paul F. Zukoski, Alan B. Mistrater
  • Process for controlling alloy fractionation
    Patent number: 5075191
    Abstract: Disclosed is a process for treating particles of selenium alloy to reduce fractionation when the particles are subsequently vacuum evaporated onto a substrate which comprises (1) heating particles of an alloy of selenium and an alloying component selected from the group are exposed to oxygen; (2) exposing the particles to water vapor; and (3) subjecting the particles previously exposed to oxygen and water vapor to a vacuum. Also disclosed is a process which comprises (1) providing particles of an alloy of selenium and an alloying component selected from the group consisting of tellurium, arsenic, and mixtures thereof; (2) forming selenium oxide on the surfaces of the particles; (3) converting the selenium oxide on the particle surfaces to selenious acid; and (4) removing the selenious acid from the particle surfaces.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: December 24, 1991
    Assignee: Xerox Corporation
    Inventors: Roger W. LaForce, Lawrence E. Kowalczyk, Santokh S. Badesha, Paul F. Zukoski, Monroe J. Hordon, Steven M. Sterling, Barry A. Lees, Fred A. Elder
  • Processes for preparing chalcogenide alloys
    Patent number: 5035857
    Abstract: A process for the preparation of chalcogenide alloys which comprises crystallizing a chalcogenide alloy, grinding and pelletizing the crystallized product, and evaporating the alloy on, for example, a supporting substrate to form a photoreceptor.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: July 30, 1991
    Assignee: Xerox Corporation
    Inventors: Lawrence E. Kowalczyk, Santokh S. Badesha, Paul F. Zukoski, Monroe J. Hordon, Steven M. Sterling, Barry A. Lees, Frederick A. Elder, Roger W. LaForce
  • Processes for preparing chalcogenide alloys
    Patent number: 5002734
    Abstract: A process for the preparation of chalcogenide alloys which comprises crystallizing a chalcogenide alloy, grinding and pelletizing the crystallized product, and evaporating the alloy on, for example, a supporting substrate to form a photoreceptor.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: March 26, 1991
    Assignee: Xerox Corporation
    Inventors: Lawrence E. Kowalczyk, Santokh S. Badesha, Paul F. Zukoski, Monroe J. Hordon, Steven M. Sterling, Barry A. Lees, Frederick A. Elder, Roger W. LaForce