Patents by Inventor Werner Weitschiess

Werner Weitschiess 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).

  • Contrast medium for near infrared diagnosis
    Publication number: 20020022004
    Abstract: This invention relates to colloidal systems charged with polymethine dyes and having suitable photophysical and pharmacological properties, their use as a contrast medium in fluorescence and transillumination diagnostics in the near infrared spectral range, as well as methods for their production.
    Type: Application
    Filed: September 25, 2001
    Publication date: February 21, 2002
    Inventors: Kai Licha, Bjorn Riefke, Werner Weitschiess, Dieter Heldmann, Violetta Sudmann
  • Contrast medium for near infrared diagnosis
    Patent number: 6319488
    Abstract: This invention relates to colloidal systems charged with polymethine dyes and having suitable photophysical and pharmacological properties, their use as a contrast medium in fluorescence and transillumination diagnostics in the near infrared spectral range, as well as methods for their production.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: November 20, 2001
    Assignee: Institut für Diagnostikforschung GmbH an der Freien Universität Berlin
    Inventors: Kai Licha, Björn Riefke, Werner Weitschiess, Dieter Heldmann, Violetta Sudmann