Patents by Inventor Irene Resta

Irene Resta 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).

  • Crystalline form of a cephalosporin antibiotic
    Patent number: 5693790
    Abstract: The preparation of a novel crystalline cefaclor and the conversion of such a product to cefaclor monohydrate are described. The new intermediate cefaclor is a particular crystalline form and possesses the same antibiotic properties as cefaclor monohydrate.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: December 2, 1997
    Assignee: Biochimica Opos Spa
    Inventors: Marco Da Col, Leone Dall'Asta, Irene Resta
  • Crystalline form of a cephalosporin antibiotic
    Patent number: 5589593
    Abstract: The preparation of a novel crystalline cefaclor and the conversion of such a product to cefaclor monohydrate are described. The new intermediate cefaclor is a particular crystalline form and possesses the same antibiotic properties as cefaclor monohydrate.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 31, 1996
    Assignee: Biochimica Opos SpA
    Inventors: Marco Da Col, Leone Dall'Asta, Irene Resta
  • Process for the preparation of halogenated .beta.-lactam compounds
    Patent number: 5532353
    Abstract: There is described the preparation of halogenated .beta.-lactam derivatives by introduction of a chlorine atom in the 3-position of the cephem nucleus starting from a 3-sulfonyloxycephem. Such starting materials are reacted with a chlorine ions donor in a basic medium.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: July 2, 1996
    Assignee: Biochimica Opos SpA
    Inventors: Marco Da Col, Leone Dall'Asta, Irene Resta, Gianfranco Cainelli, Michele Contento, Mauro Panunzio, Achille Umani Ronchi