Patents by Inventor Mark J Tremback

Mark J Tremback 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).

  • Roll bar portion of a helmet
    Patent number: D597259
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: July 28, 2009
    Assignee: Gentex Corporation
    Inventors: Mark J Tremback, Joseph J Fontanella, James Risboskin