Patents by Inventor Simon Heyworth Mackenzie

Simon Heyworth Mackenzie 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).

  • Die with inner die
    Patent number: D540883
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: April 17, 2007
    Inventor: Simon Heyworth Mackenzie