Patents by Inventor Thomas H. Blevins

Thomas H. Blevins 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).

  • Bifocal lens apparatus
    Patent number: 5243366
    Abstract: An eyeglass assembly includes arrangement for receiving a further magnification lens to selectively afford a rear surface of the eyeglass lens. The further magnification lens relative to each eyeglass lens may be adherably or magnetically secured relative to the eyeglass lens for providing enhanced magnification relative to the eyeglass lens.
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: September 7, 1993
    Inventor: Thomas H. Blevins