Patents by Inventor Michel Grinberg

Michel Grinberg 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).

  • Fountain pen
    Patent number: D242855
    Type: Grant
    Filed: June 7, 1974
    Date of Patent: December 28, 1976
    Assignee: S.T. Dupont
    Inventor: Michel Grinberg