Patents by Inventor Michael Columbo

Michael Columbo 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: D349575
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: August 9, 1994
    Inventor: Michael Columbo