Patents by Inventor Maria L. Bolognesi

Maria L. Bolognesi 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 manufacturing L-(-)-carnitine from a waste product having opposite configuration
    Patent number: 5599978
    Abstract: The present invention relates to a proces for manufacturing L-(-)-carnitine from D-(+)-carnitine or a derivative thereof. D-(+)-carnitine is esterified in order to protect the carboxyl group and subsequently converted to an acyl derivative. The acyl derivative is then converted to a lactone of L-(-)-carnitine. Finally, the lactone is reopened to obtain L-(-)-carnitine.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: February 4, 1997
    Assignee: Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.
    Inventors: Fabio Giannessi, Maria L. Bolognesi, Maria O. Tinti, Francesco De Angelis
  • Process for manufacturing L-(-)-carnitine from a waste product having opposite configuration
    Patent number: 5412113
    Abstract: The present invention relates to a proces for manufacturing L-(-)-carnitine from D-(+)-carnitine or a derivative thereof. D-(+)-carnitine is esterified in order to protect the carboxyl group and subsequently converted to an acyl derivative. The acyl derivative is then converted to a lactone of L-(-)-carnitine. Finally, the lactone is reopened to obtain L-(-)-carnitine.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: May 2, 1995
    Assignee: Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.
    Inventors: Fabio Giannessi, Maria L. Bolognesi, Maria O. Tinti, Francesco De Angelis