Patents by Inventor Alexandra Rothen-Weinhold

Alexandra Rothen-Weinhold 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).

  • Implants for controlled release of pharmaceutically active principles and method for making same
    Patent number: 6319512
    Abstract: The present intention relates to an implant for the controlled release of at least one pharmaceutically active principle comprising a core containing at least one active principle and a sheath surrounding said core, wherein said sheath is composed of at least one polymeric film applied around said core. It also relates to a process for the preparation of such an implant, characterised by the production of a core containing at least one active principle, preparation of at least one polymeric film, application of the polymeric film(s) around said core by juxtaposition and/or superposition thereof, and sterilisation of the implant thus obtained.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: November 20, 2001
    Assignee: Debio Recherche Pharmaceutique SA
    Inventors: Alexandra Rothen-Weinhold, Robert Gurny, Piero Orsolini, Frédéric Heimgartner
  • Pharmaceutical compositions for the sustained release of insoluble active principles
    Patent number: 6245346
    Abstract: Pharmaceutical composition for the controlled release of at least one water-insoluble active principle, containing a homopolymer of D,L-lactic acid or of L-lactic acid of low molecular weight combined with said active principle, wherein the molecular weight of the homopolymer of D,L-lactic acid is between approximately 2,000 and 6,000 daltons or the molecular weight of the homopolymer of L-lactic acid is about 4,000 daltons.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: June 12, 2001
    Assignee: Debio Recherche Pharmaceutique S.A.
    Inventors: Alexandra Rothen-Weinhold, Robert Gurny, Piero Orsolini, Frédéric Heimgartner