Patents by Inventor Ravon D. Luttrell

Ravon D. Luttrell 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).

  • Bar code printing plate and method
    Patent number: 5123352
    Abstract: A flexible bar code printing plate formed with an ink density gauge rib for concurrently printing a tint gauge whereby the code and tint gauge are printed concurrently enabling the printed gauge to be inspected for a tint pattern deemed indicative of a well-printed bar code image.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: June 23, 1992
    Inventor: Ravon D. Luttrell