Patents by Inventor Winfried Uftring

Winfried Uftring 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).

  • Apparatus for the heat treatment of ophthalmic lenses, especially contact lenses
    Patent number: 5340399
    Abstract: In an apparatus for the heat treatment of ophthalmic lenses, especially contact lenses, which comprises an approximately cylindrical housing of closed design having an inlet opening and an outlet opening, transport device for transporting the ophthalmic lenses located inside molds along an open transport path, which is arranged inside the housing and connects the inlet and the outlet opening, and heating device arranged inside the housing, the open transport path inside the housing is of an essentially spiral shape, and the heating device are arranged essentially above and below the transport path.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: August 23, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Winfried Uftring, Theo Bachmann, Helmut Geis, Lothar Haase