Patents by Inventor Richard Alt

Richard Alt 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: D347379
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: May 31, 1994
    Inventor: Richard Alt
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    Patent number: D347783
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: June 14, 1994
    Inventor: Richard Alt