Patents by Inventor Franz H. Fischl

Franz H. Fischl 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: 4790814
    Abstract: The invention specifies a catheter for artificial fertilization, which is provided with a flexible hose-like catheter section insertible into the uterine cavity of a womb via the cervical cavity. In a terminal portion allocated to a cervical passage, there is provided a conical attachment enlarging rearwardly. A passage in the other terminal portion facing away from the attachment, is closed off at the forward and end, is rounded off or made in spherical cap form. The passage is provided rearwards of the rounded-off terminal portion with two peripherally staggered and radially extending outflow openings. The hose-like catheter section has a flexible hose-like rearward extension extending from the conical attachment. The length of the hose-like extension corresponds substantially to the length of a vagina.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: December 13, 1988
    Inventors: Franz H. Fischl, Ewald Pickhard