Patents by Inventor Antonio Parretta

Antonio Parretta 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).

  • Silicon carbide coatings
    Patent number: 5141613
    Abstract: A process is described for forming a silicon carbide coating on nickel-based superalloys by:nitriding the alloy or depositing a titanium nitride film on the alloy by reactive sputtering;vapor-phase chemical deposition of a thin film of titanium nitride;annealing in a nitrogen and hydrogen atmosphere;vapor-phase chemical deposition of a silicon carbon layer.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: August 25, 1992
    Assignee: Eniricerche S.p.A.
    Inventors: Valerio Adoncecchi, Emilia Cappelli, Giuseppe Giunta, Antonio Parretta