Patents by Inventor Augusto Lavacchielli

Augusto Lavacchielli 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 a polymorph of terfenadine
    Patent number: 5347006
    Abstract: The invention relates to a method for preparing HMP terfenadine comprising the steps of reacting terfenadone free-base with sodium borohydride to yield mixed polymorph terfenadine and crystallizing said mixed polymorph terfenadine from a seeded ester or ketone solvent system to yield substantially pure HMP terfenadine.
    Type: Grant
    Filed: December 31, 1992
    Date of Patent: September 13, 1994
    Inventors: Augusto Lavacchielli, Mirco Fornaroli, Giovanni Colli