Patents by Inventor Arvo E. Lievonen

Arvo E. Lievonen 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).

  • Massage roller
    Patent number: D308098
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: May 22, 1990
    Inventors: Arvo E. Lievonen, Kari J. Lievonen