Patents by Inventor Françis Blanche

Françis Blanche 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).

  • Polypeptides involved in the biosynthesis of streptogramins, nucleotide sequences coding for these polypeptides and their use
    Patent number: 6077699
    Abstract: Disclosed is the nucleic acid sequences for polypeptides and enzymes involved in the biosynthesis of streptogramins from Streptomyces sp. and the corresponding amino acid sequences. Also disclosed are recombinant vectors and cells as well as methods of making the polypeptides, enzymes and streptogramins using the recombinant host cells.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: June 20, 2000
    Inventors: Veronique Blanc, Francis Blanche, Joel Crouzet, Nathalie Jacques, Patricia Lacroix, Denis Thibaut, Monique Zagorec, Laurent Debussche, Valerie De Crecy-Lagard
  • Topoisomerase IV, corresponding nucleotide sequences and uses thereof
    Patent number: 6001631
    Abstract: A novel topoisomerase IV, nucleotide sequences coding for said enzyme, corresponding vectors, and the use of said enzyme for screening biologically active materials.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: December 14, 1999
    Assignee: Rhone-Poulenc Rorer S.A.
    Inventors: Francis Blanche, Beatrice Cameron, Joel Crouzet, Alain Famechon, Lucia Ferrero
  • Polypeptides involved in the biosynthesis of streptogramins, nucleotide sequences coding for these polypeptides and their use
    Patent number: 5891695
    Abstract: The invention concerns nucleotide sequences coding for a polypeptide involved in Streptogramin biosynthesis, recombinant cells containing said sequences, and use thereof.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: April 6, 1999
    Assignee: Rhone-Poulenc Rorer S.A.
    Inventors: Veronique Blanc, Francis Blanche, Joel Crouzet, Nathalie Jacques, Patricia Lacroix, Denis Thibaut, Monique Zagorec, Laurent Debussche, Valerie De Crecy-Lagard
  • Process for the enzymatic preparation of macrolactone
    Patent number: 5591614
    Abstract: This invention concerns a process for enzymatically preparing a compound of formula (1) ##STR1## from the compound of formula (2) ##STR2## by way of a microorganism or an acellular preparation derived from this microorganism. The microorganism and acellular preparation oxidizes the 2-3 bond of the macrolactones' D-proline into dehydroproline.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: January 7, 1997
    Assignee: Rhone-Poulenc Rorer, S.A.
    Inventors: Francis Blanche, Denis Thibaut