Patents by Inventor Marcello Gagliano

Marcello Gagliano 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).

  • Process for preparing bisphenol fluorene compounds
    Patent number: 5248838
    Abstract: A process for preparing bisphenol fluorene products which comprises reacting fluorenone with a phenol compound in the presence of an acidic condensing agent in a solution of an organic liquid wherein the bisphenol fluorene compound is insoluble and recovering the obtained bisphenol fluorene product from the reaction mixture.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: September 28, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Sergio Massirio, Mauro Besio, Marcello Gagliano, Brunella Fornasari, Angelo Vallarino, Piera Di Mito