Patents by Inventor Victor Centellas

Victor Centellas 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).

  • Macrolide solvates
    Patent number: 6949519
    Abstract: Azithromycin in the form of a monohydrate comprising from 4.0% to 6.5% of water, a process for its preparation and its use in pharmaceutical compositions.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: September 27, 2005
    Assignee: Sandoz AG
    Inventors: Victor Centellas, José Diago, Rafael Garcia, Johannes Ludescher
  • Macrolide solvates
    Publication number: 20040053862
    Abstract: Azithromycin in the form of a monohydrate comprising from 4.0% to 6.5% of water, a process for its preparation and its use in pharmaceutical compositions.
    Type: Application
    Filed: October 10, 2003
    Publication date: March 18, 2004
    Inventors: Victor Centellas, Jose Diago, Rafael Garcia, Johannes Ludescher
  • Macrolides
    Patent number: 6703372
    Abstract: Azithromycin in the form of a stable monohydrate and processes for the preparation of azithromycin in the form of an, e.g. stable, monohydrate.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: March 9, 2004
    Assignee: Biochemie S.A.
    Inventors: Victor Centellas, Rafael Garcia, Marta Poch, José Diago, Johannes Ludescher, Immaculada Bosch
  • Macrolide intermediates in the preparation of clarithromycin
    Patent number: 6599886
    Abstract: The present invention relates to a process for the production of clarithromycin from an aqueous medium in anhydrous form and in the form of a hydrate.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: July 29, 2003
    Assignee: Biochemie S.A.
    Inventors: Victor Centellas, José Diago
  • Erthromycin a oxime solvates
    Patent number: 6504017
    Abstract: Erythromycin A oxime in the form of a hemihydrate.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: January 7, 2003
    Assignee: Biochemie S.A.
    Inventors: Immaculada Bosch, Victor Centellas, José Diago
  • Macrolide production
    Patent number: 6420537
    Abstract: A process for the production of azithromycins by methylation of the nitrogen atom in position 9 of the ring structure in 9-deoxo-9a-aza-9a-homoerythromycins in the presence of formaldehyde and in the presence of a reducing agent in non-halogenated solvent; and azithromycin which is free from halogenated organic solvent in a stable anhydrous form; or in the form of a solvate with non-halogenated solvent with the exception of water.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: July 16, 2002
    Assignee: Biochemie S.A.
    Inventors: Immaculada Bosch, Victor Centellas, José Diago
  • Macrolide intermediates in the preparation of clarithromycin
    Publication number: 20020025938
    Abstract: The present invention relates to a process for the production of clarithromycin from an aqueous medium in anhydrous form and in the form of a hydrate.
    Type: Application
    Filed: June 8, 2001
    Publication date: February 28, 2002
    Inventors: Victor Centellas, Jose Diago
  • Silylation process
    Patent number: 5998610
    Abstract: A process for the silylation of 6-aminopenicillanic acid or 7-amino-desacetoxy-cephalosporanic acid by silylation in certain carboxylic acid esters and its use in the production of 6-alpha-aminoacyl-penicillins and 7-alpha-aminoacyl-desacetoxy-cephalosporins.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: December 7, 1999
    Assignee: Biochemie Gesellschaft m.b.H.
    Inventors: Victor Centellas, Jose Diago, Johannes Ludescher
  • Process for separating pivalic acid from spent reaction mixtures
    Patent number: 5990351
    Abstract: A process for recovering 2,2-dimethylpropanoic acid in highly pure form from a mixture of 2,2-dimethylpropanoic acid and impurities which may be obtained in the production of a beta lactam antibiotic, by degrading impurities and separating off the volatile fragments.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: November 23, 1999
    Assignee: Biochemie GmbH
    Inventors: Joan Cabre, Victor Centellas, Jose Diago, Asuncion Esteve, Joan Serrat