Patents by Inventor Mark E. Doyle

Mark E. Doyle 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).

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    Patent number: D314156
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: January 29, 1991
    Inventor: Mark E. Doyle