Patents by Inventor Kevin D. O'Connor

Kevin D. O'Connor 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).

  • Multifocal lens
    Patent number: 4806010
    Abstract: A multifocal lens has an upper distance vision zone which is divided by a visible division from a distinct lower portion of the lens which includes an intermediate vision zone of progressively increasing dioptric power which leads into a near vision zone. The visible division is provided by an abrupt change in dioptric power in the range from about 0.5 dioptres to about 0.5 dioptres less than the difference between the constant dioptric powers of the near vision zone and the distance vision zone.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: February 21, 1989
    Assignee: Pilkington Visioncare Holdings, Inc.
    Inventors: Ronald W. Ewer, deceased, Dean G. Scott, legal representative, Kevin D. O'Connor