Patents by Inventor Colin Clipstone

Colin 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
    Publication number: 20060265885
    Abstract: A razor blade includes a substrate with a cutting edge and a coating of a carbon-containing material doped, for example, with chromium.
    Type: Application
    Filed: March 14, 2006
    Publication date: November 30, 2006
    Inventors: Colin Clipstone, Steve Hahn, Yiqian Liu, Neville Sonnenberg, Andrew Zhuk
  • Razor blade technology
    Patent number: 6866894
    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. Also disclosed is a method of making a razor blade including providing a substrate with a cutting edge defined by a sharpened tip and adjacent facets, and applying an aqueous solution including polytetrafluoroethylene coating over the sharpened tip to result in an outer layer, the polytetrafluoroethylene having a molecular weight of about 45,000.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: March 15, 2005
    Assignee: The Gillette Company
    Inventors: Hoang Mai Trankiem, Michael J. Paretchan, Colin Clipstone, Steve Syng-Hi Hahn, Neville Sonnenberg, Charles White, Andrew Zhuk, Kevin P. McDonough
  • Razor blade
    Publication number: 20040172832
    Abstract: A razor blade includes a substrate with a cutting edge and a coating of a carbon-containing material doped, for example, with chromium.
    Type: Application
    Filed: March 4, 2003
    Publication date: September 9, 2004
    Inventors: Colin Clipstone, Steve S. Hahn, Yiqian Eric Liu, Neville Sonnenberg, Andrew Zhuk
  • Razor blade technology
    Publication number: 20030121158
    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. Also disclosed is a method of making a razor blade including providing a substrate with a cutting edge defined by a sharpened tip and adjacent facets, and applying an aqueous solution including polytetrafluoroethylene coating over the sharpened tip to result in an outer layer, the polytetrafluoroethylene having a molecular weight of about 45,000.
    Type: Application
    Filed: February 10, 2003
    Publication date: July 3, 2003
    Applicant: The Gillette Company, a Delaware Corporation
    Inventors: Colin Clipstone, Steve Syng-Hi Hahn, Neville Sonnenberg, Charles White, Andrew Zhuk
  • Razor blade technology
    Publication number: 20030096060
    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. Also disclosed is a method of making a razor blade including providing a substrate with a cutting edge defined by a sharpened tip and adjacent facets, and applying an aqueous solution including polytetrafluoroethylene coating over the sharpened tip to result in an outer layer, the polytetrafluoroethylene having a molecular weight of about 45,000.
    Type: Application
    Filed: July 10, 2002
    Publication date: May 22, 2003
    Inventors: Hoang Mai Trankiem, Michael J. Paretchan, Colin Clipstone, Steve Syng-Hi Hahn, Neville Sonnenberg, Charles White, Andrew Zhuk, Kevin P. McDonough