Patents by Inventor Stephen Hasselbach

Stephen Hasselbach 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: D468206
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: January 7, 2003
    Assignee: Design Safety Corp.
    Inventors: David Weiss, Stephen Hasselbach
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    Patent number: D476567
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: July 1, 2003
    Assignee: Design Safety Corp.
    Inventors: David Weiss, Stephen Hasselbach