Patents by Inventor Jens Spethmann

Jens Spethmann 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).

  • High frequency radiation therapy apparatus
    Patent number: 4316474
    Abstract: The invention relates to a high frequency radiation therapy apparatus permitting therapy on the lying patient and which is constructed in such a way that a high frequency generator with a waveguide is displaced in the vicinity of the lying surface of a patient on a couch. The waveguide used is subdivided into a plurality of separately operable groups to obtain a lateral power distribution. Each group has slot-like openings in the wall current area of the waveguide and the openings of each group can be closed independently of one another.
    Type: Grant
    Filed: May 8, 1980
    Date of Patent: February 23, 1982
    Assignee: Firma Electric Electronic Service Jens Spethmann
    Inventor: Jens Spethmann