Patents by Inventor Stephen Appleton

Stephen Appleton 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: 20060008600
    Abstract: A material for use in covering objects for microwave heating comprises a substrate (1) substantially transparent to microwave radiation bearing an array of low emissivity metal patch elements (2) defining a frequency selective surface adapted to pass microwave radiation and reflect thermal infrared radiation. The patch elements (2), typically of aluminium, preferably have a characteristic dimension no greater than about 500 ?m and a spacing no greater than about 100 ?m, while the emissivity of the combined surface and frequency selective surface is preferably no greater than about 0.4. The material is useful as a packing for chilled or frozen microwavable foodstuffs, where its low emissivity assists in thermal insulation during storage or transportation and capturing of heat within the package during microwave cooking, where it can be safely used despite the presence of metal in the structure due to its configuration as a frequency selective surface.
    Type: Application
    Filed: September 5, 2003
    Publication date: January 12, 2006
    Inventors: Stephen Appleton, Andrew Treen, Ian Youngs