Patents by Inventor Johannes Seissl

Johannes Seissl 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).

  • Patent number: 4108308
    Abstract: A package for intraoral dental X-ray film comprised of a plastic pouch having an X-ray film with a selectively removable intensifier foil positioned on at least one side thereof within the interior of such pouch.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: August 22, 1978
    Assignee: Siemens Aktiengesellschaft
    Inventors: Kurt Franke, Johannes Seissl, Wilhelm Stuermer
  • Patent number: 4100417
    Abstract: An X-ray installation particularly adapted for dental diagnostic use wherein the radiating anode is disposed adjacent the remote end of a tube projecting from a cathode housing. The anode emitts radiation in substantially all directions and the tube has a length sufficient to be inserted into the patient's mouth. The tube containing the anode is equipped as desired with a radiation absorbing cap which in one instance limits radiation emission through a cap aperture for filming from within the patient's mouth and in a second instance comprises a slip-on cylindrical tube having a focusing opening at an axial end thereof for directing radiation to a specified area of the mouth from externally of the mouth.
    Type: Grant
    Filed: February 3, 1977
    Date of Patent: July 11, 1978
    Assignee: Siemens Aktiengesellschaft
    Inventors: Horst Goetzl, Ulrich Grassme, Johannes Seissl
  • Patent number: 4057733
    Abstract: A dental X-ray diagnostic installation in which an X-ray tube has an X-ray image intensifier associated therewith, and that means are provided which permit an alignment of its inlet screen with the focus of the X-ray tube. The X-ray image intensifier, during the carrying out of radioscopies, receives the X-radiation emanating from the patient and amplifies the radiation. Accordingly, it thereby permits the observation of the presently produced X-ray image either directly through an optical device associated with its outlet screen, or indirectly through the intermediary of a video system connected to the output thereof.
    Type: Grant
    Filed: February 11, 1976
    Date of Patent: November 8, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventors: Dieter Hofmockel, Ulrich Grassme, Johannes Seissl, Ernst Otto Fleer