Patents by Inventor Giuseppe Casnati

Giuseppe Casnati 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: 4739062
    Abstract: A new widely-applicable method has been found for synthesis of 9,10-anthraquinones and similar chemical compounds of wide use in industry and pharmacology, by reacting suitable aromatic substrates with activated dicarboxylic acids (more particularly dichlorides) in the presence of metal halides. The special characteristics of the reaction are the good yields, high selectivity, the possibility of operating in a single reactor and the use of starting compounds which are cheap and easily available on the market.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: April 19, 1988
    Assignee: Consiglio Nazionale Delle Ricerche
    Inventors: Franca Bigi, Giovanni Casiraghi, Giuseppe Casnati, Giovanni Sartori
  • Patent number: 4151201
    Abstract: There is disclosed a catalytic process for preparing, from phenols and formaldehyde 2-hydroxybenzoic aldehydes some of which are new in the art and, more particularly, a high-selectivity process for preparing the aldehydes by direct synthesis from phenols having at least a free ortho position and formaldehyde, in the presence of a catalyst consisting of anhydrous stannous and/or stannic chloride and of an aprotic binder.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: April 24, 1979
    Assignee: Montedison S.p.A.
    Inventors: Giuseppe Casnati, Giovanni Casiraghi, Giuseppe Puglia, Giovanni Sartori, Giuliana Terenghi