Patents by Inventor Gregory Fred Sperbeck

Gregory Fred Sperbeck 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: D494282
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: August 10, 2004
    Inventor: Gregory Fred Sperbeck