Patents by Inventor Klaus Duftschmid

Klaus Duftschmid 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).

  • Secondary-standard ionization chamber, in particular for measuring the energy dose
    Patent number: 4300050
    Abstract: An ionization chamber for measuring an energy dose having a chamber wall with an electromagnetic radiation absorption characteristic equivalent to air, tissue or water and a neck part and being closed on all sides, an air compensation orifice; an outer electrode formed by a conductive coating on the inner surface of the chamber wall, an inner electrode and an electrically conductive ring surrounding the neck part of the chamber wall is disclosed. The chamber wall consists of at least 85% by weight of a base material containing polyacetal in a mixture with up to 20% by weight of polytetrafluoroethylene having additives consisting of one or more of calcium oxide, aluminum oxide, aluminum and carbon. The conductive coating on the inner surface of the chamber wall consists of a material containing one or more elements having an atomic number greater than 8.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: November 10, 1981
    Assignee: Osterreichisches Forschungszentrum Seibersdorf GmbH
    Inventors: Jozsef Hizo, Klaus Duftschmid
  • Radiation measuring device or similar article
    Patent number: D311871
    Type: Grant
    Filed: October 29, 1987
    Date of Patent: November 6, 1990
    Assignee: Oesterreichisches Forschungszentrum Seibersdorf Ges.m.b.H.
    Inventor: Klaus Duftschmid