Patents Assigned to (501) Fresenius AG
  • Multi-lumen tube arrangement
    Patent number: 4865081
    Abstract: Multi-lumen tube arrangement for use in a sliding-seal-free centrifuge comprising a plurality of equilength individual tubes (12, 14, 36, 38, 40, 42) which after a twisting about the longitudinal axis of the tube arrangement (10) are each held fixed free of tension at their ends (16-18).
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: September 12, 1989
    Assignee: 501 Fresenius AG
    Inventors: Hans-Jurgen Neumann, Wolfram Weber
  • Method of treatment of cerebral disturbances with oligopeptides containing tryptophan
    Patent number: 4849408
    Abstract: The use of tryptophan containing oligopeptides for the treatment of cerebral disturbances in particular sleeplessness and depression is disclosed. The use of glycyl tryptophan, if desired, in combination with tryptophan itself, is especially preferred.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: July 18, 1989
    Assignee: (501) Fresenius AG
    Inventors: Klaus Sommermeyer, Burghard Weidler