Patents by Inventor Francesco Assi

Francesco Assi 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 for selectively increasing the ratio of single major components of teicoplanin A2 complex
    Patent number: 4927754
    Abstract: The object of this invention is to provide a method for selectively increasing the ratio of the single T-A2 major components in the T-A2 complex. More particularly, the object of this invention is a process for obtaining teicoplanin A.sub.2 selectively enriched in any of its major components, T-A2-1, T-A2-2, T-A2-3, T-A2-4 and T-A2-5 which consists in adding to the culture medium of Actinoplanes teichomyceticus nov. sp. ATCC 31121 or a mutant thereof which produces T-A2 complex through the same metabolic pathway, a selectively effective amount of an appropriate precursor.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: May 22, 1990
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Francesco Assi, Giancarlo Lancini, Anacleto Gianantonio