Patents by Inventor William Ojala

William Ojala 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).

  • Fresnell lens and filter for use with computers and the like
    Patent number: 4712870
    Abstract: A Fresnell lens and filter are disposed in a frame adjustably pivotally attached to a bar extending from a cabinet having a viewing screen for a computer, e.g. The bar is movable to adjust the distance of the lens from the screen and the height of the lens relative to the screen. A clamp for the bar is mounted on the cabinet which, when loosened, permits such adjustment and when tightened fixes the bar in position.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: December 15, 1987
    Inventors: Donald L. Robinson, William Ojala