Patents by Inventor Frank Widmer

Frank Widmer 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: 6390622
    Abstract: A contact lens or intraocular lens is provided having a near zone (1) and a distance zone (2) concentrically surrounding the former. In order to achieve functionally correct vision, the said optimum surface consists of a bielliptical or a spheroelliptical combination.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: May 21, 2002
    Assignee: Hecht Contactlinsen GmbH
    Inventors: Stefan Muckenhirn, Dieter Muckenhirn, Frank Widmer