Patents by Inventor Leonard Spinozza

Leonard Spinozza 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: D256999
    Type: Grant
    Filed: December 20, 1977
    Date of Patent: September 23, 1980
    Assignee: Alcar Industries
    Inventors: Anton Haagedoorn, Leonard Spinozza, Philip Merlin