Patents by Inventor Phillip Vincent Ridings

Phillip Vincent Ridings 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: 7350921
    Abstract: A device for performing in eye test includes a display for animated visual acuity letters and sealable dynamic letters, a computer to control the display and to link to a patient database, and the display having at least a contrast sensitivity of 400:1, a true rez visual acuity letter of 1°, a screen resolution of 1024 and a ambient light 768>4500K.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: April 1, 2008
    Inventor: Phillip Vincent Ridings