Patents by Inventor Oscar Ferrero Barruego

Oscar Ferrero Barruego 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 purifying 7-substituted aminodeacetoxy-cephalosporins through the use of filtration membranes
    Patent number: 6100393
    Abstract: Process for purifying 7-substituted aminodeacetoxycephalosporins through the use of filter membranes. A process for purification by ultrafiltration and/or nanofiltration with a cut-off for molecular weights over 10,000 Dalton and preferably over 2000 Dalton is described. For example cephalosporin-G of increased purity, represented by a 6-8% increase in the HPLC titre, with a reduction of 50% in absorbance, is obtained using this technique. The invention makes it possible for the purified products to be used directly in the synthesis of other antibiotic compounds without the need for intermediate isolation.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: August 8, 2000
    Assignee: Antibioticos, S.A.
    Inventors: Juan Francisco Lopez Ortiz, Oscar Ferrero Barruego, Emiliano Gonzalez de Prado, Alejandro Vitaller Alba, Francisco Salto Maldonado