Patents by Inventor Colin John Clipstone

Colin John Clipstone 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).

  • Razor blade technology
    Patent number: 6684513
    Abstract: A razor blade including a substrate with a cutting edge defined by a sharpened tip and adjacent facets, a layer of hard coating on the cutting edge, an overcoat layer of a chromium containing material on the layer of hard carbon coating, and an outer layer of polytetrafluoroethylene coating over the overcoat layer.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: February 3, 2004
    Assignee: The Gillette Company
    Inventors: Colin John Clipstone, Steve Hahn, Neville Sonnenberg, Charles White, Andrew Zhuk