Patents by Inventor Francoise Marie Thomas

Francoise Marie Thomas 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).

  • Method for developing a photographic product with incorporated developer
    Patent number: 5789144
    Abstract: The present invention concerns a method for developing a photographic product containing incorporated developers, and a layer of a novel activator. This method consists of applying to an exposed photographic product a thin layer of an aqueous homogeneous development activator solution which comprises (a) an alkanolamine in an amount higher or equal to 0.6 mol/l, (b) at least one stable wetting agent that is stable at a high pH and is miscible in the activator solution, and (c) a quaternary ammonium salt.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: August 4, 1998
    Assignee: Eastman Kodak Company
    Inventor: Francoise Marie Thomas