Patents by Inventor Valerie L. Kuykendall

Valerie L. Kuykendall 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: 6838233
    Abstract: A method of processing photographic color papers is carried out using a photographic bleach-fixing composition in a bleach-fixing step that is carried out for less than 60 seconds. The bleach-fixing composition comprises certain aliphatic or aromatic sulfur-containing compounds that include a —N?C(SH)— group. The bleach-fixing composition can be prepared from a two-part bleach-fixing kit having two solutions that can be added directly to a processing chamber or premixed to form a replenisher solution.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: January 4, 2005
    Assignee: Eastman Kodak Company
    Inventors: Paul A. Schwartz, Valerie L. Kuykendall, Eric R. Schmittou, Leif P. Olson, Susan M. Flavin
  • Publication number: 20040197714
    Abstract: Silver is recovered from aqueous silver-bearing compositions such as seasoned photographic bleach-fixing compositions or other photoprocessing effluent that comprise certain aliphatic or aromatic sulfur-containing compounds that include a —N═C(SH)— group. The presence of these compounds in the silver-bearing compositions provides effective silver recovery, extended life for the silver recovery apparatus, and reduced maintenance.
    Type: Application
    Filed: April 23, 2004
    Publication date: October 7, 2004
    Applicant: Eastman Kodak Company
    Inventors: Paul A. Schwartz, Valerie L. Kuykendall, Leif P. Olson, Susan M. Flavin, Dominick Vacco, Dennis M. Long, Jay E. Mathewson
  • Publication number: 20040185390
    Abstract: Stable, single-part photographic bleach-fixing “precursor” compositions comprise one or more iron-ligand complexes, one or more thiosulfates as the sole fixing agents, and optionally, a sulfite preservative. At least 50 mol % of the iron in the composition is in the form of Fe(II). This composition can be used directly in photoprocessing, or used as a regenerator when mixed with bleach-fixing overflow to provide a replenishing solution. Because the Fe(II) compounds are precursor bleaching agents, they must be oxidized to Fe(III) for active bleaching prior to or during the photographic processing operations.
    Type: Application
    Filed: January 28, 2004
    Publication date: September 23, 2004
    Inventors: Sheridan E. Vincent, Valerie L. Kuykendall, Jean M. Buongiorne
  • Publication number: 20040180303
    Abstract: A method of processing photographic color papers is carried out using a photographic bleach-fixing composition in a bleach-fixing step that is carried out for less than 60 seconds. The bleach-fixing composition comprises certain aliphatic or aromatic sulfur-containing compounds that include a —N═C(SH)— group. The bleach-fixing composition can be prepared from a two-part bleach-fixing kit having two solutions that can be added directly to a processing chamber or premixed to form a replenisher solution.
    Type: Application
    Filed: March 3, 2004
    Publication date: September 16, 2004
    Inventors: Paul A. Schwartz, Valerie L. Kuykendall, Eric R. Schmittou, Leif P. Olson, Susan M. Flavin
  • Patent number: 6790600
    Abstract: A method of processing photographic color papers is carried out using a photographic bleach-fixing composition in a bleach-fixing step that is carried out for less than 60 seconds. The bleach-fixing composition comprises certain aliphatic or aromatic sulfur-containing compounds that include a —N═C(SH)—group. The bleach-fixing composition can be prepared from a two-part bleach-fixing kit having two solutions that can be added directly to a processing chamber or premixed to form a replenisher solution.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: September 14, 2004
    Assignee: Eastman Kodak Company
    Inventors: Paul A. Schwartz, Valerie L. Kuykendall, Eric R. Schmittou, Leif P. Olson, Susan M. Flavin
  • Publication number: 20040157172
    Abstract: A method of processing photographic color papers is carried out using a photographic bleach-fixing composition in a bleach-fixing step that is carried out for less than 60 seconds. The bleach-fixing composition comprises certain aliphatic or aromatic sulfur-containing compounds that include a —N═C(SH)— group. The bleach-fixing composition can be prepared from a two-part bleach-fixing kit having two solutions that can be added directly to a processing chamber or premixed to form a replenisher solution.
    Type: Application
    Filed: February 7, 2003
    Publication date: August 12, 2004
    Applicant: Eastman Kodak Company
    Inventors: Paul A. Schwartz, Valerie L. Kuykendall, Eric R. Schmittou, Leif P. Olson, Susan M. Flavin
  • Patent number: 6582893
    Abstract: Stable, single-part photographic bleach-fixing “precursor” compositions comprise one or more iron-ligand complexes, one or more thiosulfates as the sole fixing agents, and optionally, a sulfite preservative. At least 50 mol % of the iron in the composition is in the form of Fe(II). This composition can be used directly in photoprocessing, or used as a regenerator when mixed with bleach-fixing overflow to provide a replenishing solution. Because the Fe(II) compounds are precursor bleaching agents, they must be oxidized to Fe(III) for active bleaching prior to or during the photographic processing operations.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: June 24, 2003
    Assignee: Eastman Kodak Company
    Inventors: Sheridan E. Vincent, Valerie L. Kuykendall, Jean M. Buongiorne
  • Patent number: 6534253
    Abstract: Photographic bleach-fixing solutions in a processing chamber can be directly replenished using a single-part photographic bleach-fixing “precursor” composition that comprises one or more iron-ligand complexes, one or more thiosulfates as the sole fixing agents, and optionally, a sulfite preservative. At least 50 mol % of the iron in the composition is in the form of Fe(II). Immediately prior to or during directly supplying the precursor composition to the processing chamber from an enclosed container, sufficient ferrous ions are converted to ferric ions to provide desired bleaching in the processing chamber.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: March 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: Valerie L. Kuykendall, Sheridan E. Vincent, Daniel R. English
  • Publication number: 20020164551
    Abstract: Stable, single-part photographic bleach-fixing “precursor” compositions comprise one or more iron-ligand complexes, one or more thiosulfates as the sole fixing agents, and optionally, a sulfite preservative. At least 50 mol % of the iron in the composition is in the form of Fe(II). This composition can be used directly in photoprocessing, or used as a regenerator when mixed with bleach-fixing overflow to provide a replenishing solution. Because the Fe(II) compounds are precursor bleaching agents, they must be oxidized to Fe(III) for active bleaching prior to or during the photographic processing operations.
    Type: Application
    Filed: April 3, 2002
    Publication date: November 7, 2002
    Inventors: Sheridan E. Vincent, Valerie L. Kuykendall, Jean M. Buongiorne
  • Publication number: 20020160322
    Abstract: Stable, single-part photographic bleach-fixing “precursor” compositions comprise one or more iron-ligand complexes, one or more thiosulfates as the sole fixing agents, and optionally, a sulfite preservative. At least 50 mol % of the iron in the composition is in the form of Fe(II). This composition can be used directly in photoprocessing, or used as a regenerator when mixed with bleach-fixing overflow to provide a replenishing solution. Because the Fe(II) compounds are precursor bleaching agents, they must be oxidized to Fe(III) for active bleaching prior to or during the photographic processing operations.
    Type: Application
    Filed: April 3, 2002
    Publication date: October 31, 2002
    Inventors: Sheridan E. Vincent, Valerie L. Kuykendall, Jean M. Buongiorne