Patents by Inventor Franca Bigi

Franca Bigi 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).

  • Method of preparing electron deficient olefins
    Patent number: 7718821
    Abstract: This invention relates to a process for producing electron deficient olefins, such as 2-cyanoacrylates, using an iminium salt.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: May 18, 2010
    Assignees: Loctite (R&D) Limited, Universita Degli Studi di Parma
    Inventors: Franca Bigi, Stefano Gheradi, Ciaran B. McArdle
  • Method of producing paraquinones
    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