Patents by Inventor Ian Sellwood

Ian Sellwood 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).

  • Ventilation duct
    Publication number: 20060213498
    Abstract: A seamless ventilation duct (1) is disclosed. The duct (1) includes integrally formed hinge means (6) that enables the duct (1) to be collapsed for transportation and/or storage prior to use.
    Type: Application
    Filed: April 8, 2004
    Publication date: September 28, 2006
    Inventor: Ian Sellwood