Patents by Inventor Kenneth B. Quinn

Kenneth B. Quinn 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).

  • Process for deionizing and concentrating emulsions
    Patent number: 5977190
    Abstract: A process of washing an emulsion such as a silver halide emulsion which contains a hydrophilic colloid comprises deionizing the emulsion and coagulating the emulsion with an anionic polymer and separating the coagulum from the supernatant and resuspending the coagulum with hydrophilic colloid, water and a base.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: November 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Lloyd A. Lobo, Kenneth B. Quinn
  • Method of preparation of silver composite high temperature ceramic superconductors by precipitation
    Patent number: 5223480
    Abstract: A novel method for forming homogeneous silver high temperature superconductor (HTS) composites. The novel method comprises a chemical coprecipitation of silver, barium, yttrium, and copper salts solutions, followed by calcination and milling processes. The novel method has an advantage of retaining all the virtues immanent in a composite HTS, for example, increased critical current density (Jc), and improved mechanical properties, while bypassing extant and deficient methodologies for forming a composite, the deficient composites characterized by heterogeneity.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: June 29, 1993
    Assignee: Eastman Kodak Company
    Inventors: Ashok K. Agarwala, Paul A. Christian, Kenneth B. Quinn