Patents by Inventor James F. Humber

James F. Humber 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).

  • Phoropter aligner
    Publication number: 20080123054
    Abstract: A phoropter aligner is disclosed. The device is attached to a phoropter. This device will allow an eyecare practitioner to align the phoropter correctly and be assured that the letters on the visual acuity chart are the correct size. The device will accomplish this by projecting an image from the phoropter onto the center of a visual acuity chart.
    Type: Application
    Filed: July 24, 2006
    Publication date: May 29, 2008
    Inventor: James F. Humber