Patents by Inventor Federigo Ciampelli

Federigo Ciampelli 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).

  • Protecting materials subject to degradation by atmospheric and polluting agents by means of perfluoropolyethers
    Patent number: 4499146
    Abstract: Marble, stones, tiles and articles manufactured from such materials are protected from the degrading action of atmospheric and polluting agents by applying to the surfaces of said materials and manufactured articles, a protecting agent which is a perfluoropolyether as such or diluted with a solvent or a mixture of solvents having a boiling temperature lower than 80.degree. C., preferably a fluorochlorohydrocarbon.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: February 12, 1985
    Assignees: Montedison S.p.A., Consiglio Nazionale Delle Ricerche
    Inventors: Franco Piacenti, Federigo Ciampelli, Adolfo Pasetti