Patents by Inventor Gerhard Laudahn

Gerhard Laudahn 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).

  • Use of estradiol valerate as an anti-depressant
    Patent number: 4330538
    Abstract: Estradiol valerate has been discovered to possess neuropsychotropic activity, e.g., it is an effective anti-depressant having advantageous properties.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: May 18, 1982
    Assignee: Schering Aktiengesellschaft
    Inventors: Turan M. Itil, Gerhard Laudahn, Werner M. Herrmann
  • 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
  • Neuropsychotropic agents and their use
    Patent number: 4089952
    Abstract: Norgestrel, its D- and L-enantiomers and their 17-esters exhibit neuropsychotropic activity when administered in effective dosages to patients exhibiting neuropsychic disturbances of the affective and behavioral type.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: May 16, 1978
    Assignee: Schering Aktiengesellschaft
    Inventors: Turan M. Itil, Gerhard Laudahn, Werner Martin Herrmann
  • Intrauterine contraceptive device
    Patent number: 4034749
    Abstract: A Y-shaped medicated contraceptive IUD for human use having a pair of elastomeric arms rounded at the ends thereof to facilitate insertion and removal, and a base containing protrusions to aid in gripping of the device by the cervix muscles. The device is adaptable to virtually any size human uterus and shows fewer side effects and spontaneous expulsions than known IUD's.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: July 12, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Istvan Von Kesseru, Gerhard Laudahn, Barbara Muhe, Gisela Schopflin
  • 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