Patents by Inventor Mark Koivisto

Mark Koivisto 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: D291712
    Type: Grant
    Filed: September 12, 1984
    Date of Patent: September 1, 1987
    Inventor: Mark Koivisto