Patents by Inventor Ricardo Boysen

Ricardo Boysen 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: D346311
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: April 26, 1994
    Assignee: Cristalux S.A.
    Inventor: Ricardo Boysen