Patents by Inventor Robert B. Bac

Robert B. Bac 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).

  • Spectacle frame and method for securing organic lenses thereto
    Patent number: 5861933
    Abstract: The spectacle frame comprises two side pieces each adapted to be secured to one of two organic lenses by hinging one of its ends, and a bridge adapted to be secured between the two lenses, a part of the side pieces and/or the bridge comprising elements for directly securing them to the lenses. The securing elements are adapted to engage a portion of the cut-out edge of the lenses over a length of approximately 5-10 mm.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: January 19, 1999
    Assignees: Robert Bac, Colette Bac, Francois Ascoli, Valerie DeBache, David-Oliver Bac
    Inventor: Robert B. Bac