Patents by Inventor Heidemarie Hartmann

Heidemarie Hartmann 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).

  • Vaginal ring
    Patent number: 4155991
    Abstract: A composite vaginal ring containing a safe and effective amount of a pharmaceutically active medicament, which comprises:(a) a major supporting vaginal ring consisting essentially of a physiologically acceptable synthetic resin and having at least a portion of the annular surface thereof adapted to mate with corresponding minor, medicament-containing vaginal ring segment; and(b) at least one minor, medicament-containing vaginal ring segment adapted to mate with the modified annular surface of said major supporting vaginal ring and consisting essentially of a safe and effective amount of a pharmaceutically active amount of a nonionic, lipophilic drug dissolved or uniformly suspended in an elastomeric, cross-linked LTV linear dimethylpolysiloxane resin.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: May 22, 1979
    Assignee: Schering Aktiengesellschaft
    Inventors: Gisela Schopflin, Gerhard Laudahn, Barbara Muhe, Heidemarie Hartmann, Fred Windt
  • Vaginal ring
    Patent number: 4012496
    Abstract: A composite vaginal ring containing a safe and effective amount of a pharmaceutically active medicament, which comprises:A. a major supporting vaginal ring consisting essentially of a physiologically acceptable synthetic resin and having at least a portion of the annular surface thereof adapted to mate with corresponding minor, medicament-containing vaginal ring segment; andB. at least one minor, medicament-containing vaginal ring segment adapted to mate with the modified annular surface of said major supporting vaginal ring and consisting essentially of a safe and effective amount of a pharmaceutically active amount of a nonionic, lipophilic drug dissolved or uniformly suspended in an elastomeric, cross-linked LTV linear dimethylpolysiloxane resin.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: March 15, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Gisela Schopflin, Gerhard Laudahn, Barbara Muhe, Heidemarie Hartmann, Fred Windt