Patents by Inventor Samuel C. Oliphant

Samuel C. Oliphant 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: 6244705
    Abstract: Auxiliary “task-distance” eyeglasses for use with conventional corrective eyeglasses to eliminate the constant head tilting otherwise necessary to maintain focus when using only the conventional lenses. The auxiliary glasses have upper partial lenses that correct mid-range vision, the focal length required for viewing a computer screen, reading piano music, viewing an instrument panel, or any other arms' length task. The zone of mid-range correction extends across the full width of the lenses. The lenses of the auxiliary glasses are connected by a bridge and supported on the primary glasses by two short tabs that extend sidewardly so as to rest on the temple members of the primary glasses. No clips or clamps are involved, so the auxiliary glasses simply “drop in” behind the regular glasses, avoiding damage to either the primary or the auxiliary lenses. This configuration makes the auxiliary glasses less obtrusive than conventional clip-on lenses.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: June 12, 2001
    Inventors: Donald L. Ledbetter, Samuel C. Oliphant, Jr.
  • Patent number: D338262
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: August 10, 1993
    Assignee: Samuel C. Oliphant
    Inventors: Samuel C. Oliphant, David E. Gormley
  • Patent number: D338714
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: August 24, 1993
    Assignee: Samuel C. Oliphant
    Inventors: Samuel C. Oliphant, David E. Gormley