Patents by Inventor Vicenzo Cannata

Vicenzo Cannata 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).

  • Polymorphic forms ?, ?, and ? of rifaximin
    Patent number: 7612199
    Abstract: Crystalline polymorphous forms of rifaximin (INN) antibiotic named rifaximin ? and rifaximin ?, and a poorly crystalline form named rifaximin ?, useful in the production of medicinal preparations containing rifaximin for oral and topical use and obtained by means of a crystallization carried out by hot-dissolving the raw rifaximin in ethyl alcohol and by causing the crystallization of the product by addition of water at a determinate temperature and for a determinate period of time, followed by a drying carried out under controlled conditions until reaching a settled water content in the end product, are the object of the invention.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: November 3, 2009
    Assignee: Alfa Wassermann, S.p.A.
    Inventors: Guiseppe Glaudio Viscomi, Manuela Campana, Dario Braga, Donatella Confortini, Vicenzo Cannata, Paolo Righi, Goffredo Rosini
  • POLYMORPHIC FORMS ALPHA, BETA, AND GAMMA OF RIFAXIMIN
    Publication number: 20090234114
    Abstract: Crystalline polymorphous forms of rifaximin (INN) antibiotic named rifaximin ? and rifaximin ?, and a poorly crystalline form named rifaximin ?, useful in the production of medicinal preparations containing rifaximin for oral and topical use and obtained by means of a crystallization carried out by hot-dissolving the raw rifaximin in ethyl alcohol and by causing the crystallization of the product by addition of water at a determinate temperature and for a determinate period of time, followed by a drying carried out under controlled conditions until reaching a settled water content in the end product, are the object of the invention.
    Type: Application
    Filed: June 4, 2009
    Publication date: September 17, 2009
    Applicant: ALFA WASSERMAN S.p..A.
    Inventors: Guiseppe Glaudio VISCOMI, Manuela CAMPANA, Dario BRAGA, Donatella CONFORTINI, Vicenzo CANNATA, Paolo RIGHI, Goffredo ROSINI