Patents by Inventor John Duffield

John Duffield 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).

  • Publication number: 20030228433
    Abstract: A process for preparing a water-soluble container which comprises: a) thermoforming a first poly(vinyl alcohol) film having a water content of less than 5 wt % to produce a pocket; b) filling the pocket with a composition; c) placing a second film on top of the filled pocket; and d) sealing the first film and second film together.
    Type: Application
    Filed: June 20, 2003
    Publication date: December 11, 2003
    Inventor: Paul John Duffield
  • Publication number: 20030108705
    Abstract: A rigid, water-soluble container is made of an injection molded poly(vinyl alcohol) and/or a cellulose ether, which container encases a fabric care, surface care or dishwashing composition; and a capsule container comprising at least two components made of one or more material(s) that can be molded and which are water soluble or water dispersible or in which a substantial part of the surface of these components is water soluble or water dispersible so as to leave perforations throughout the wall when the capsular container is placed in contact with an aqueous environment. The container has one to six compartments, preferably one, two or three, the content of the various compartments being accessible to the aqueous environment when the capsular container is exposed to such an aqueous environment.
    Type: Application
    Filed: May 17, 2002
    Publication date: June 12, 2003
    Applicants: Reckitt Benckiser (UK) Limited, Aquasol Limited
    Inventors: Paul John Duffield, Geoffrey Robert Hammond, David Brian Edwards, William John McCarthy, Arnold Heyworth Beckett, Anthony Douglas Jackman