Patents by Inventor Patrick Thielen

Patrick Thielen 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).

  • Light diffusing device for photodynamic treatment of organs
    Patent number: 6315775
    Abstract: A light diffusing device for the irradiation of biological tissues in photodynamic treatment includes a light guide having an unclad section at its distal tip, the unclad section being surrounded with at least one layer of diffusing substance for diffusing the light circulating in the light guide. The diffusing layer includes a prefabricated tubular piece having walls of constant thickness in which the unclad section is inserted.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: November 13, 2001
    Assignee: Medlight S.A.
    Inventors: Patrick Thielen, Alain Woodtli