Patents by Inventor Paul M. Magee

Paul M. Magee 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).

  • Photographic developing composition and use thereof in the development of a photographic element
    Patent number: 6927021
    Abstract: A photographic developer composition for use in the development of a black and white silver halide photographic element said composition comprises at least one developing agent and, in an amount sufficient to inhibit sludge deposition, one or more compounds selected from compounds having the formula X—R1—CONH-A-S—S—B—NHCO—R2—Y??(I) wherein A and B are each independently a substituted or unsubstituted aliphatic, alicyclic, aromatic or heterocyclic group; R1 and R2 are each independently a substituted or unsubstituted aliphatic, alicyclic, aromatic or heterocyclic group; X and Y are each independently a solubilizing group; and compounds having the formula X—R1—CONH-A-S-M??(II) wherein A, R1 and X are as defined above, and M is either a hydrogen atom or a cationic species if the sulfur atom is in its ionized form.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: August 9, 2005
    Assignee: Eastman Kodak Company
    Inventors: Paul M. Magee, Brian J. Parker, Nicholas A. Pightling
  • Photographic developing composition and use thereof in the development of a photographic element
    Publication number: 20040197716
    Abstract: A photographic developer composition for use in the development of a black and white silver halide photographic element said composition comprises at least one developing agent and, in an amount sufficient to inhibit sludge deposition, one or more compounds selected from compounds having the formula
    Type: Application
    Filed: April 28, 2004
    Publication date: October 7, 2004
    Inventors: Paul M. Magee, Brian J. Parker, Nicholas A. Pightling
  • Photographic developing composition and use thereof in the development of a photographic element
    Patent number: 6764814
    Abstract: A photographic developer composition for use in the development of a black and white silver halide photographic element said composition comprises at least one developing agent and, in an amount sufficient to inhibit sludge deposition, one or more compounds selected from compounds having the formula X—R1—CONH—A—S—S—B—NHCO—R2—Y  (I) wherein A and B are each independently a substituted or unsubstituted aliphatic, alicyclic, aromatic or heterocyclic group; R1 and R2 are each independently a substituted or unsubstituted aliphatic, alicyclic, aromatic or heterocyclic group; X and Y are each independently a solubilising group; and compounds having the formula X—R1—CONH—A—S—M  (II) wherein A, R1 and X are as defined above, and M is either a hydrogen atom or a cationic species if the sulfur atom is in its ionized form.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: July 20, 2004
    Assignee: Eastman Kodak Company
    Inventors: Paul M. Magee, Brian J. Parker, Nicholas A. Pightling
  • Photographic developing composition and use thereof in the development of a photographic element
    Publication number: 20020155396
    Abstract: A photographic developer composition for use in the development of a black and white silver halide photographic element said composition comprises at least one developing agent and, in an amount sufficient to inhibit sludge deposition, one or more compounds selected from compounds having the formula
    Type: Application
    Filed: January 18, 2002
    Publication date: October 24, 2002
    Applicant: Eastman Kodak Company
    Inventors: Paul M. Magee, Brian J. Parker, Nicholas A. Pightling
  • Hydrazide compositions, methods employing them and photographic materials containing them
    Patent number: 4416969
    Abstract: A nucleating agent composition is described comprising a triazole substituted phenylhydrazide and an thiourea substituted phenylhydrazide wherein the molar ratio of the triazole substituted phenylhydrazide to the thiourea substituted phenylhydrazide is between 1:20 and 20:1. The described composition is useful in photographic emulsions, processing compositions and elements and provides excellent nucleation at low concentrations under a variety of processing conditions.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: November 22, 1983
    Assignee: Eastman Kodak Company
    Inventors: Paul M. Magee, Gareth B. Evans