Patents by Inventor Giacomo Ravetta

Giacomo Ravetta 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).

  • Continuous process for the dinitration of aromatic substrates
    Patent number: 5907062
    Abstract: A continuous process for the dinitration of alkyl-substituted derivatives of phenol and aniline, using nitric acid substantially free of sulphuric acid, characterized in which the dinitration is conducted in a single step in a tubular reactor in the presence of a catalytically-effective amount of a catalyst capable of reacting with the nitric acid to form nitrous acid in situ.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: May 25, 1999
    Assignee: Finchimica S.p.A.
    Inventors: Alberto Villanti, Giacomo Ravetta