Patents by Inventor Oscar F. Contreras

Oscar F. Contreras 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).

  • Adjustable anatomical spectacle framework systems and methods
    Patent number: 5323189
    Abstract: Adjustable pairs of eyeglasses are disclosed which retain the precise adjustments during long periods of wear. Apparatus and methods are provided for so adjusting rim separation at the bridge of the frame of the eyeglasses and for so adjusting the effective length of temples between shoulders and bow of the frame.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: June 21, 1994
    Assignee: OCCM Expansion Systems, Inc.
    Inventor: Oscar F. Contreras