Patents by Inventor Robert Grzybowski

Robert Grzybowski 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).

  • Spacing device for placement of tile
    Patent number: 6647685
    Abstract: A tool for the spacing of tiles during installation includes a central body with radially projecting prongs that are fitted between adjacent tiles to control the spacing thereof.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: November 18, 2003
    Assignee: Space-It-Rite
    Inventors: Joseph L. Annarella, Robert Grzybowski, John F. Dumelle
  • Spacing device for placement of tile
    Publication number: 20030126815
    Abstract: A tool for the spacing of tiles during their installation includes a central body with radially projecting prongs that are fitted between adjacent tiles to control the spacing thereof.
    Type: Application
    Filed: January 10, 2002
    Publication date: July 10, 2003
    Applicant: Space-It-Rite, a corporation of the State of Illin
    Inventors: Joseph L. Annarella, Robert Grzybowski, John F. Dumelle