Patents by Inventor Leonardo Giorgi

Leonardo Giorgi 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).

  • Steel strip for food packaging and process for production thereof
    Patent number: 5021104
    Abstract: The suitability of the kind of steel strip known as black plate, optionally coated with small quantities of tin or nickel for food packaging, is greatly improved by ensuring the presence of a layer of P-type semiconducting oxide on the surface thereof. The ratio of the number of Type-P charge bearing atoms (NA) of that semiconducting oxide to the numbr of Type-N charge bearing atoms (ND) is greater than 1.2. The quality of the plate is yet further improved by coating the oxide surface with a thin chromic passivation layer that also contains a P-type semiconducting oxide.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: June 4, 1991
    Assignee: Nuova Italsider S.p.A.
    Inventors: Nazzareno Azzerri, Leonardo Giorgi
  • Steel strip for food packaging
    Patent number: 4886712
    Abstract: The suitability of the kind of steel strip known as black plate, optionally coated with small quantities of tin or nickel for food packaging, is greating improved by ensuring the presence of a layer of P-type semiconducting oxide on the surface thereof.The quality of the plate is yet further improved by coating the oxide surface with a thin chromic passivation layer that also contains a P-type semiconducting oxide.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: December 12, 1989
    Assignee: Nuova Italsider S.p.A.
    Inventors: Nazzareno Azzerri, Leonardo Giorgi