Patents by Inventor Christopher M. Knapp

Christopher M. Knapp 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).

  • Publication number: 20020136977
    Abstract: A liquid developer comprised of a nonpolar liquid, thermoplastic resin, colorant, and a silica charge acceptance additive.
    Type: Application
    Filed: February 6, 2001
    Publication date: September 26, 2002
    Applicant: Xerox Corporation
    Inventors: David H. Pan, Christopher M. Knapp, Weizhong Zhao
  • Patent number: 6444130
    Abstract: The invention is a process for treating waste slurry generated in the electric furnace production of phosphorus in which a superatmospheric reactor is operated at an elevated temperature to destroy cyanides, phosphorus, and phosphides present in the waste. The process transforms wastes from the phosphorus electric furnace process into non-hazardous solid, liquid, and gaseous wastes that meet environmental regulatory requirements regarding solids for phosphorous, cyanide, phosphine and cyanide flux, and TCLP metals, and regarding the filtrate for UTS metals.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: September 3, 2002
    Assignee: FMC Properties,LLC.
    Inventors: James L. Manganaro, Henry A. Pfeffer, Jay R. Brummer, Bert D. McMunn, Christopher M. Knapp, William M. Copa
  • Patent number: 6372402
    Abstract: A liquid developer contains, for example, a nonpolar liquid, thermoplastic resin, optional colorant, and an inorganic filler
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: April 16, 2002
    Assignee: Xerox Corporation
    Inventors: David H. Pan, Christopher M. Knapp
  • Patent number: 6348292
    Abstract: A liquid developer comprised of a nonpolar liquid, resin, optional colorant, and an alkaline earth charge acceptance additive.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: February 19, 2002
    Assignee: Xerox Corporation
    Inventors: David H. Pan, Christopher M. Knapp, Weizhong Zhao, Thomas W. Smith
  • Patent number: 6346357
    Abstract: A liquid developer comprised of a nonpolar liquid, thermoplastic resin, optional colorant, and an alumina charge acceptance additive.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: February 12, 2002
    Assignee: Xerox Corporation
    Inventors: David H. Pan, Weizhong Zhao, Christopher M. Knapp
  • Patent number: 6335136
    Abstract: A liquid developer containing a liquid, colorant, and a wax charge acceptance additive. When free of colorant, the developer is considered colorless or slightly colored.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: January 1, 2002
    Assignee: Xerox Corporation
    Inventors: David H. Pan, Christopher M. Knapp
  • Patent number: 6218066
    Abstract: A liquid developer comprised of a nonpolar liquid, resin, colorant, and a cyclodextrin charge acceptance component.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: April 17, 2001
    Assignee: Xerox Corporation
    Inventors: Weizhong Zhao, David H. Pan, John W. Spiewak, Christopher M. Knapp
  • Patent number: 6212347
    Abstract: An imaging apparatus containing an imaging member with an electrostatic latent image formed thereon, the imaging member containing a surface capable of supporting marking material; an imaging device for generating the electrostatic latent image on the imaging member wherein the electrostatic latent image includes image areas defined by a first charge voltage and nonimage areas defined by a second charge voltage distinguishable from the first charge voltage; a marking material supply apparatus for depositing marking material on the surface of the imaging member to form a marking material layer thereon adjacent the electrostatic latent image on the imaging member; a charging source for selectively delivering charges to the marking material layer in an imagewise manner responsive to the electrostatic latent image on the imaging member to form a secondary latent image in the marking material layer containing image and nonimage areas corresponding to the electrostatic latent image on the imaging member; and a
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: April 3, 2001
    Assignee: Xerox Corporation
    Inventors: Weizhong Zhao, David H. Pan, John W. Spiewak, Christopher M. Knapp
  • Patent number: 6187499
    Abstract: An imaging apparatus, comprising an imaging member with an electrostatic latent image formed thereon, said imaging member containing a surface capable of supporting marking material; an imaging device for generating the electrostatic latent image on said imaging member, wherein the electrostatic latent image includes image areas defined by a first charge voltage and non-image areas defined by a second charge voltage distinguishable from the first charge voltage; a marking material supply apparatus for depositing marking material on the surface of said imaging member to form a marking material layer thereon adjacent the electrostatic latent image on said imaging member; a charging source for selectively delivering charges to the marking material layer in an imagewise manner responsive to the electrostatic latent image on said imaging member to form a secondary latent image in the marking material layer having image and nonimage areas corresponding to the electrostatic latent image on said imaging member; a
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: February 13, 2001
    Assignee: Xerox Corporation
    Inventors: Weizhong Zhao, David H. Pan, John W. Spiewak, Christopher M. Knapp
  • Patent number: 6187498
    Abstract: A process including: forming a first image on a first substrate with a liquid toner comprising a resin, a colorant, a carrier liquid, and an adhesion promoting compound; transferring the image from the first substrate to a second substrate; overcoating the image on the second substrate with a transparent overcoat layer, and treating the resulting overcoated image.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: February 13, 2001
    Assignee: Xerox Corporation
    Inventors: Christopher M. Knapp, George A. Gibson, David H. Pan, John W. Spiewak
  • Patent number: 6180308
    Abstract: A liquid developer comprised of a nonpolar liquid, resin, colorant, and a charge acceptance component comprised of an aluminum complex of the formulas, or mixtures thereof wherein R1 is selected from the group consisting of hydrogen and alkyl, and n represents the number of R1 substituents.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: January 30, 2001
    Assignee: Xerox Corporation
    Inventors: David H. Pan, Weizhong Zhao, John W. Spiewak, Christopher M. Knapp
  • Patent number: 6060204
    Abstract: A process including:forming a first image on a first substrate with a liquid toner comprising a resin, a colorant, a carrier liquid, and an adhesion promoting compound;transferring the image from the first substrate to a second substrate;overcoating the image on the second substrate with a transparent overcoat layer, andtreating the resulting overcoated image.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: May 9, 2000
    Assignee: Xerox Corporation
    Inventors: Christopher M. Knapp, George A. Gibson, David H. Pan, John W. Spiewak
  • Patent number: 5866292
    Abstract: A positively charged liquid developer comprised of a nonpolar liquid, thermoplastic resin particles, pigment, a charge director, and a charge control agent comprised of a PEO:PPO, preferably in a solid form.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: February 2, 1999
    Assignee: Xerox Corporation
    Inventors: Scott D. Chamberlain, David H. Pan, Christopher M. Knapp, John W. Spiewak, George A. Gibson, Frank J. Bonsignore
  • Patent number: 5783349
    Abstract: A liquid developer comprised of a nonpolar liquid, resin, optional colorant, a charge director, and an optional charge control agent, and wherein the charge director is comprised of a mixture of phosphoric acid esters I, II and III, and IV a nonpolar liquid soluble organic aluminum complex of the formulas ##STR1## hydrates thereof or mixtures thereof, wherein R.sub.1 is selected from the group consisting of hydrogen and alkyl, and n represents a number of from about 1 to about 6.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: July 21, 1998
    Assignee: Xerox Corporation
    Inventors: John W. Spiewak, Mary Ann Machonkin, David H. Pan, Scott D. Chamberlain, Christopher M. Knapp
  • Patent number: 5723244
    Abstract: A process for the reduction of residual image voltage present on an imaging member which comprises contacting the member with a composition comprised of a nonpolar liquid, thermoplastic resin particles, an optional charge adjuvant, charge control additive, carbon black pigment, and a charge director comprised of a nonpolar liquid soluble organic aluminum complex, or mixtures thereof of the formulas ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen and alkyl, and n represents a number, and wherein said voltage is reduced to from about zero to about 25 volts.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: March 3, 1998
    Assignee: Xerox Corporation
    Inventors: Scott D. Chamberlain, Christopher M. Knapp, David H. Pan
  • Patent number: 5714297
    Abstract: A positively charged liquid developer comprised of a nonpolar liquid, thermoplastic resin particles, pigment, a charge director, and a charge control agent comprised of Rhodamine Y.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: February 3, 1998
    Assignee: Xerox Corporation
    Inventors: Scott D. Chamberlain, John W. Spiewak, David H. Pan, George A. Gibson, Christopher M. Knapp, Roger N. Ciccarelli
  • Patent number: 5688624
    Abstract: A positively charged liquid developer comprised of a nonpolar liquid, thermoplastic resin particles, pigment, a charge director, and a charge control agent comprised of a PEO:PPO, preferably in a solid form.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: November 18, 1997
    Assignee: Xerox Corporation
    Inventors: Scott D. Chamberlain, David H. Pan, Christopher M. Knapp, John W. Spiewak, George A. Gibson, Frank J. Bonsignore