Patents by Inventor Frederic X. Jordi

Frederic X. Jordi 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 emulsions and elements capable of forming direct-positive images
    Patent number: 4306017
    Abstract: Silver halide emulsions are disclosed containing silver halide grains capable of forming an internal latent image. Incorporated in the emulsions as a nucleating agent is a dihydrospiropyran bis-condensation product of salicylic aldehyde and at least one heterocyclic ammonium salt, thereby permitting a direct-positive image to be formed on imagewise exposure and photographic processing.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: December 15, 1981
    Assignee: Eastman Kodak Company
    Inventors: Roger M. Baralle, Marcel A. Compere, Maurice E. Pfaff, Frederic X. Jordi, Claude G. Goumont
  • Photographic emulsions and elements capable of forming direct-positive images
    Patent number: 4306016
    Abstract: Silver halide emulsions are disclosed containing silver halide grains capable of forming an internal latent image. Incorporated in the emulsions as a nucleating agent is a heterocyclic compound having an arylaminovinylene or aryloxyvinylene substituent, thereby permitting a direct-positive image to be formed on imagewise exposure and photographic processing.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: December 15, 1981
    Assignee: Eastman Kodak Company
    Inventors: Roger M. Baralle, Marcel A. Compere, Maurice E. Pfaff, Frederic X. Jordi, Claude G. Goumont