Patents by Inventor Matthew T. Hartwig

Matthew T. Hartwig 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).

  • Patent number: 7419163
    Abstract: A dartboard cover for covering a dartboard in an aesthetically pleasing manner wherein the dartboard cover includes a frame having a central aperture and a graphic panel removably mountable in the central aperture. A rib extends from a rear surface of the frame and is removably engagable with an upper edge of the dartboard to removably mount the dartboard cover to the dartboard.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: September 2, 2008
    Assignee: DMI Sports, Inc.
    Inventors: Matthew T. Hartwig, Gary D. Giegerich
  • Publication number: 20080192487
    Abstract: A shade for mounting to a light bar to direct light from a bulb onto a billiard table or other desired area includes a plurality of shade portions having a generally arcuate-shape. Each shade portion includes a first side edge and a second side edge. The first side edge includes a first interlocking structure and the second side edge includes a second interlocking structure. The second interlocking structure of one of the shade portion engages the first interlocking structure of another shade portion to mount the shade portions to each other in an assembled configuration.
    Type: Application
    Filed: February 7, 2008
    Publication date: August 14, 2008
    Inventors: Gary D. Giegerich, Matthew T. Hartwig