Patents by Inventor Peter Nevil Milford

Peter Nevil Milford 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).

  • Writing stylus
    Patent number: 7567242
    Abstract: A stylus for an electrographic position location apparatus is disclosed. In one embodiment, the stylus includes a writing element that is retractable. The stylus may have a proximal end and a distal end. A conductive annular structure may be at the proximal end of the stylus.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: July 28, 2009
    Assignee: LeapFrog Enterprises, Inc.
    Inventors: Michael Perkins, Peter Nevil Milford, Kim Voskuil, Larry Lynch, Julie Wu Kuei Yao Willey
  • Writing stylus
    Patent number: 7224348
    Abstract: A stylus for an electrographic position location apparatus is disclosed. In one embodiment, the stylus includes a writing element that is retractable. The stylus may have a proximal end and a distal end. A conductive annular structure may be at the proximal end of the stylus.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: May 29, 2007
    Assignee: LeapFrog Enterprises, Inc.
    Inventors: Michael Perkins, Peter Nevil Milford, Kim Voskuil, Larry Lynch, Julie Wu Kuei Yao Willey
  • Writing stylus for electrographic position location apparatus
    Patent number: 7068262
    Abstract: A stylus for an electrographic position location apparatus is disclosed. In one embodiment, the stylus includes a writing element that is retractable. The stylus may have a proximal end and a distal end. A conductive annular structure may be at the proximal end of the stylus.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: June 27, 2006
    Assignee: LeapFrog Enterprises, Inc.
    Inventors: Michael Perkins, Peter Nevil Milford, Kim Voskuil, Larry Lynch, Julie Wu Kuei Yao Willey
  • Writing stylus for electrographic position location apparatus
    Publication number: 20040246211
    Abstract: A stylus for an electrographic position location apparatus is disclosed. In one embodiment, the stylus includes a writing element that is retractable. The stylus may have a proximal end and a distal end. A conductive annular structure may be at the proximal end of the stylus.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 9, 2004
    Applicant: LeapFrog Enterprises, Inc.
    Inventors: Michael Perkins, Peter Nevil Milford, Kim Voskuil, Larry Lynch, Julie Wu Kuei Yao Willey